C++课程设计2

PS:大一下学期C++课程设计

1.成绩管理系统

#include<stdio.h>
#include<string>
#include<iostream>
#include<fstream>
#include<ostream>
#include<iomanip>//setw(),控制空格
#include<algorithm>//为了计算文件里面含有的对象个数
#include<windows.h>
#include<cstdlib>//防止^Z导致程序异常
#include<mmsystem.h>//控制音乐播放的头文件
#pragma comment(lib, "Winmm.lib")//控制音乐播放的头文件
using namespace std;
int N;
class Cstudent
{
public:
	Cstudent()//构造函数，将成绩赋值为零
	{
		string grade;
		grade = '0';
	}
	void display()//控制输出，进行左对齐
	{
		cout<<"姓名:"<<std::left<<setw(20)<<na;
		cout<<"学号:"<<std::left<<setw(20)<<id;
		cout<<"成绩:"<<std::left<<setw(20)<<gr;
	}
	void setdate(string name, string idnumber, string grade)//对私有变量进行复制
	{
		na = name;
		id = idnumber;
		gr = grade;
	}
	string student_name()
	{
		return na;
	}
	string student_idnumber()
	{
		return id;
	}
	string student_grade()
	{
		return gr;
	}
	string find_idnumber()//按照学号查找时学号
	{
		return id;
	}
	string find_NAME()//按照姓名查找时返回姓名
	{
		return na;
	}
	int count()
	{
		int score;
		char* end;
		string grade;
		score = static_cast<int>(strtol(gr.c_str(), &end, 10));//使用strtol（string to long） 利用string的c_str()转化为C风格字符串
		return score;
	}
	void revise()
	{
		char* end;
		int grade_bian;
		cout << "请根据以下提示进行修改。" << endl;
		cout << "姓名：";
		cin >> na;
		cout << "学号：";
		cin >>  id;
		cout << "成绩（0~100）：";
		while(cin >> gr)
		{
		   grade_bian=static_cast<int>(strtol(gr.c_str(), &end, 10));
		   if(grade_bian>=0&&grade_bian<=100)
		   {
			   break;
		   }
		   else
		   {
			   cout<<"输入有误！"<<endl;
			   cout << "请输入成绩（0~100）：";
		   }
		}
	}
private:
	string na;
	string id;
	string gr;
};
Cstudent *p;//将要创建的对象做成指针类型
void mainjiemian()//主界面
{
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << "                           欢迎进入学生成绩管理系统      " << endl;
	cout << "                   ☆                                  ☆" <<endl;
	cout << "                               1 录入学生信息            " << endl;
	cout << "                   ☆          2 输出学生信息          ☆" << endl;
	cout << "                               3 查询学生信息            " << endl;
	cout << "                   ☆          4 修改学生信息          ☆" << endl;
	cout << "                               5 统计学生信息            " << endl;
	cout << "                   ☆          6 文件录入信息          ☆" << endl;
	cout << "                               7 文件读取信息            " << endl;
	cout << "                   ☆          8 退出学生系统          ☆" << endl;
	cout << endl;
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << endl;
	cout << endl;
	cout << "请选择数字命令：";
}
void help()//进入显示
{
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << endl;
	cout << "                   ☆     制作小软件，我们是认真的！   ☆" << endl;
	cout << endl;
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << endl;
	cout << "                                           Made By 刘建伟" << endl;
	cout << endl;
	cout << "请输入学生数："<<endl;
}
void jieshu()//结束显示
{
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << endl;
	cout << "                   ☆           感谢您的使用！         ☆" << endl;
	cout << endl;
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << endl;
}
void kaobei()//拷贝文件到test1.txt
{
	char ch;
	ifstream file("H:\\student_in.txt");//读取H盘文件
	ofstream file1("H:/test1.txt");//创建文本文件
	while(file.get(ch))//读取文本内容
	{
		//cout<<ch;//输出文本内容到控制台
		file1<<ch;//写入内容到文件
	}
	file.close();//关闭文件流
	file1.close();//关闭文件流
	cout<<endl;
}
void play()
{
       // 注意PlaySound只能播放没有经过压缩的wav格式的声音文件
	PlaySound("H:\\yinyue.wav",NULL,SND_FILENAME|SND_ASYNC);//控制音乐输出，带有三个参数，loop为阻塞
}
int line()
{
	ifstream file1("H:\\test1.txt");//没有就创建
	string str;
	int line = 0;
	while (file1)
	{
		getline(file1, str);
		remove(str.begin(), str.end(), ' ');//删除从文件开始到结束中的空格
		remove(str.begin(), str.end(), '\t');//删除从文件开始到结束中的空格
		if (str.length() > 0)//如果有一行除去空格之后不为零就算作是一个对象
			line++;
	}
	return line;
}
int main()
{
	play();//播放音乐
	system("color 57");
	help();
	int line_file;//文件里的学生数和总的学生数
	int i;
	string in;//命令
	int n;//键盘输入的学生数
	int flag_case1 = 0;//是否执行了第一步
	int flag_case7 = 0;//是否执行了第七步
	int panduan;
	char* end;//末端指针
	string sn;
        while(cin>>sn)
	{
		/*if (!cin)
		{
			cin.clear();//清除cin的错误状态
			cin.sync();//清空cin缓冲区里面未读取的信息...
			cout << "输入错误，重新返回主界面。" << endl;
			//system("pause");
			//cout<<flush;
			system("cls");
			help();
			continue;
		}*/
		int flag_sn=0;
		int l_sn=sn.length();
		n=static_cast<int>(strtol(sn.c_str(), &end, 10));
		if(l_sn>0&&l_sn<5)
		{
			for(i=0;i<l_sn;i++)
			{
				if(sn.at(i)>='0'&&sn.at(i)<='9')
				{
					flag_sn=0;
				}
				else
				{
					flag_sn=1;
				}
			}
		}
		else
		{
			flag_sn=1;
		}
		if(flag_sn==1)
		{
			cout<<"输入有误！"<<endl;
			system("pause");
			system("cls");
			help();
		}
		else
		{
			break;
		}
	}
	kaobei();//拷贝文件
	line_file = line();
	N = n + line_file;
	p = new Cstudent[N];
	do
	{
		system("cls");
		mainjiemian();
		cin >> in;
		if (!cin)
		{
			cin.clear();//清除cin的错误状态
			cin.sync();//清空cin缓冲区里面未读取的信息...
			cout << "输入错误，重新返回主界面。" << endl;
			system("pause");
			//cin >>in;
			continue;
		}
		if(in.length()<2)
			panduan = static_cast<int>(strtol(in.c_str(), &end, 10));
		else
			panduan=0;
		switch (panduan+48)
		{
		case'1'://**************************录入学生信息
		{
				   system("cls");
				   string name;
				   string idnumber;
				   string grade;
				   for (i = 0; i < n; i++)
				   {
					   double grade_bian;
					   cout<<"输入第"<<i+1<<"位同学的信息。"<<endl;
					   cout << "请输入姓名：";
					   cin >> name;
					   cout << "请输入学号：";
					   while(cin >> idnumber)
					   {
						   int flag_09=0;
						   int l_idnumber=idnumber.length();
						   for(int j=0;j<l_idnumber;j++)
						   {
							   char linshi=idnumber[j];
							   if(linshi>='0'&&linshi<='9')
							   {
								   flag_09=1;
							   }
							   else
							   {
								   flag_09=0;
								   break;
							   }
						   }
						   if(flag_09==1)
						   {
							   int flag_idnumber=0;
							   for(int j=0;j<N;j++)
							   {
								   if(idnumber==p[j].student_idnumber())
								   {
									   flag_idnumber=1;
								   }
							   }
							   if(flag_idnumber==0)
							   {
								   break;
							   }
							   else
							   {
								   cout<<"学号已经存在，输入有误"<<endl;
								   cout << "请输入学号：";
							   }
						   }
						   if(flag_09==0)
						   {
							   cout<<"请输入数字类型的学号!"<<endl;
							   cout<<"请输入学号：";
						   }
					   }
					   cout << "请输入成绩（0~100）：";//判断成绩是否在规定的区间
					   while(cin >> grade)
					   {
						   int l_grade=grade.length();
						   grade_bian=static_cast<int>(strtol(grade.c_str(), &end, 10));//将成绩转化为int型来判断大小
						   if(l_grade>1)
						   {
							   if(grade_bian>=0&&grade_bian<=100&&l_grade<=3&&grade.at(l_grade-1)>='0'&&grade.at(l_grade-1)<='9'&&grade.at(l_grade-2)>='0'&&grade.at(l_grade-2)<='9')
							   {                                //利用at()来返回字符串中某个位置处的函数
								   break;
							   }
							   else
							   {
								   cout<<"输入有误！"<<endl;
								   cout << "请输入成绩（0~100）：";
							   }
						   }
						   else
						   {
							   if(grade_bian>=0&&grade_bian<=100&&l_grade<=3&&grade.at(l_grade-1)>='0'&&grade.at(l_grade-1)<='9')
							   {                                //利用at()来返回字符串中某个位置处的函数
								   break;
							   }
							   else
							   {
								   cout<<"输入有误！"<<endl;
								   cout << "请输入成绩（0~100）：";
							   }
						   }
					   }
					   p[i].setdate(name, idnumber, grade);//将输入的数据传给私有变量
				   }
				   flag_case1 = 1;//执行过第一步就标志为1
				   system("pause");
				   break;
		}
		case'2'://***************************输出学生信息
		{
				   system("cls");
				   if (flag_case7 == 1&&flag_case1==0)
				   {
					   for (i = n; i < N; i++)
					   {
						   cout << "student" << "[" << i + 1 << "]" << ":\t";
						   p[i].display();
						   cout << endl;
					   }
				   }
				   else if(flag_case7 == 0&&flag_case1==1)
				   {
					   for (i = 0; i < n; i++)
					   {
						   cout << "student" << "[" << i + 1 << "]" << ":\t";
						   p[i].display();
						   cout << endl;
					   }
				   }
				   else if(flag_case7 == 1&&flag_case1==1)
				   {
					   for (i = 0; i < N; i++)
					   {
						   cout << "student" << "[" << i + 1 << "]" << ":\t";
						   p[i].display();
						   cout << endl;
					   }
				   }
				   else
				   {
					   cout << "请先执行第一步或第七步之后再执行此步骤！" << endl;
					   cout << "即将返回主页面进行重新选择..." << endl;

				   }
				   system("pause");
				   break;
		}
		case'3'://***********************查询学生信息
		{
				   system("cls");
				   if (flag_case1 == 1||flag_case7==1)
				   {
					   int flag_find;
					   cout<<"请选择查询方式：1.按学号查询   2.按姓名查询"<<endl;
					   cin>>flag_find;
					   if(flag_find==1)
					   {
						   cout << "请输入要查询的学生学号：" << endl;
						   string idnumber;
						   int flag;
						   cin >> idnumber;
						   for (i = 0; i < N; i++)
						   {
							   if (p[i].find_idnumber() == idnumber)
							   {
								   p[i].display();
								   flag = 1;
								   cout << endl;
							   }
						   }
						   if (flag != 1)
						   {
							   cout << "输入信息有误，查询无果。" << endl;
						   }
					   }
					   if(flag_find==2)
					   {
						   cout << "请输入要查询的学生姓名：" << endl;
						   string NAME;
						   int flag;
						   cin>>NAME;
						   for(i=0;i<N;i++)
						   {
							   if(p[i].find_NAME()==NAME)
							   {
								   p[i].display();
								   flag = 1;
								   cout << endl;
							   }
						   }
						   if (flag != 1)
						   {
							   cout << "输入信息有误，查询无果。" << endl;
						   }
					   }
				   }
				   else
				   {
					   cout << "请先执行第一步或第七步之后再执行此步骤！" << endl;
					   cout << "即将返回主页面进行重新选择..." << endl;

				   }
				   system("pause");
				   break;
		}
		case'4'://****************************修改学生信息
		{
				   system("cls");
				   if (flag_case1 == 1||flag_case7==1)
				   {
					   int flag_4=0;
					   cout << "请输入要修改的学生学号：" << endl;
					   string idnumber;
					   string name;
					   string grade;
					   cin >> idnumber;
					   int grade_bian;
					   cout<<endl;
					   for (i = 0; i < N; i++)
					   {
						   if (p[i].find_idnumber() == idnumber)
						   {
							   cout<<"修改之前的信息："<<endl;
							   p[i].display();
							   cout<<endl<<endl;
							   cout<<"请根据以下提示进行修改："<<endl;
							   cout << "请输入姓名：";
							   cin >> name;
							   cout << "请输入学号：";
							   while(cin >> idnumber)
							   {
								   int flag_09=0;
								   int l_idnumber=idnumber.length();
								   for(int j=0;j<l_idnumber;j++)
								   {
									   char linshi=idnumber[j];
									   if(linshi>='0'&&linshi<='9')
									   {
										   flag_09=1;
									   }
									   else
									   {
										   flag_09=0;
										   break;
									   }
								   }
								   if(flag_09==1)
								   {
									   int flag_idnumber=0;
									   for(int j=0;j<N;j++)
									   {
										   if(idnumber==p[j].student_idnumber())
										   {
											   flag_idnumber=1;
										   }
									   }
									   if(flag_idnumber==0)
									   {
										   break;
									   }
									   else
									   {
										   cout<<"学号已经存在，输入有误"<<endl;
										   cout << "请输入学号：";
									   }
								   }
								   if(flag_09==0)
								   {
									   cout<<"请输入数字类型的学号!"<<endl;
									   cout<<"请输入学号：";
								   }
							   }
							   cout << "请输入成绩（0~100）：";//判断成绩是否在规定的区间
							   while(cin >> grade)
							   {
								   int l_grade=grade.length();
								   grade_bian=static_cast<int>(strtol(grade.c_str(), &end, 10));//将成绩转化为int型来判断大小
								   if(l_grade>1)
								   {
									   if(grade_bian>=0&&grade_bian<=100&&l_grade<=3&&grade.at(l_grade-1)>='0'&&grade.at(l_grade-1)<='9'&&grade.at(l_grade-2)>='0'&&grade.at(l_grade-2)<='9')
									   {                                //利用at()来返回字符串中某个位置处的函数
										   break;
									   }
									   else
									   {
										   cout<<"输入有误！"<<endl;
										   cout << "请输入成绩（0~100）：";
									   }
								   }
								   else
								   {
									   if(grade_bian>=0&&grade_bian<=100&&l_grade<=3&&grade.at(l_grade-1)>='0'&&grade.at(l_grade-1)<='9')
									   {                                //利用at()来返回字符串中某个位置处的函数
										   break;
									   }
									   else
									   {
										   cout<<"输入有误！"<<endl;
										   cout << "请输入成绩（0~100）：";
									   }
								   }
							   }
							   p[i].setdate(name, idnumber, grade);//将输入的数据传给私有变量
							   //p[i].revise();
							   //cout<<endl;
							   cout << "修改成功！" << endl;
							   cout<<"修改之后的信息："<<endl;
							   p[i].display();
							   ofstream ofile("H:\\student_in.txt", ios::out);
							   //把三个私有变量信息插入到文件
							   ofile << p[i].student_name() << "\t";
							   ofile << p[i].student_idnumber() << "\t";
							   ofile << p[i].student_grade() << endl;
							   cout<<endl<<endl;
							   flag_4=1;
						   }
					   }
					   if(flag_4==0)
					   {
						   cout<<"查询无果！无法进行修改。"<<endl;
					   }
				   }
				   else
				   {
					   cout << "请先执行第一步或第七步之后再执行此步骤！" << endl;
					   cout << "即将返回主页面进行重新选择..." << endl;
				   }
				   cout<<endl;
				   system("pause");
				   break;
		}
		case'5'://****************************统计输出学生信息
		{
				   system("cls");
				   if (flag_case1 == 1||flag_case7==1)//通过判断有没有执行第一步和第七步来判断统计输出时总数的大小
				   {
					   int zongshu;
					   if (flag_case7 == 1&&flag_case1==0)
					   {
						   zongshu=N;
					   }
					   if(flag_case7 == 0&&flag_case1==1)
					   {
						   zongshu=n;
					   }
					   if(flag_case7 == 1&&flag_case1==1)
					   {
						   zongshu=N;
					   }
					   cout << "学生成绩信息统计分布" << endl;
					   Cstudent *q, *r, *s, *t, *z;
					   q = new Cstudent[zongshu];
					   r = new Cstudent[zongshu];
					   s = new Cstudent[zongshu];
					   t = new Cstudent[zongshu];
					   z = new Cstudent[zongshu];
					   int qq = 0, rr = 0, ss = 0, tt = 0, zz = 0;//每个分数段的标志
					   if(flag_case1==1)
						   i=0;
					   else
						   i=n;
					   for (i; i < zongshu; i++)
					   {
						   if (p[i].count() < 60)
						   {
							   q[qq] = p[i];
							   qq = qq + 1;
						   }
						   else if (p[i].count() <= 69)
						   {
							   r[rr] = p[i];
							   rr = rr + 1;
						   }
						   else if (p[i].count() <= 79)
						   {
							   s[ss] = p[i];
							   ss = ss + 1;
						   }
						   else if (p[i].count() <= 89)
						   {
							   t[tt] = p[i];
							   tt = tt + 1;
						   }
						   else if (p[i].count() <= 100)
						   {
							   z[zz] = p[i];
							   zz = zz + 1;
						   }
					   }
					   if (qq != 0)
					   {
						   cout << "低于60分的学生：" << endl << endl;
						   for (int i = 0; i < qq; i++)
						   {
							   q[i].display();
							   cout << endl;
						   }
						   cout << endl;
					   }
					   else
						   cout << "没有低于60分的学生" << endl << endl;
					   if (rr != 0)
					   {
						   cout << "60分到69分的学生信息:" << endl << endl;
						   for (int i = 0; i < rr; i++)
						   {
							   r[i].display();
							   cout << endl;
						   }
						   cout << endl;
					   }
					   else
						   cout << "没有60分到69分的学生" << endl << endl;
					   if (ss != 0)
					   {
						   cout << "70分到79分的学生信息:" << endl << endl;
						   for (int i = 0; i < ss; i++)
						   {
							   s[i].display();
							   cout << endl;
						   }
						   cout << endl;
					   }
					   else
						   cout << "没有70分到79分的学生" << endl << endl;
					   if (tt != 0)
					   {
						   cout << "80分到89分的学生信息:" << endl << endl;
						   for (int i = 0; i < tt; i++)
						   {
							   t[i].display();
							   cout << endl;
						   }
						   cout << endl;
					   }
					   else
						   cout << "没有80分到89分的学生" << endl << endl;
					   if (zz != 0)
					   {
						   cout << "90分到100分的学生信息:" << endl << endl;
						   for (int i = 0; i < zz; i++)
						   {
							   z[i].display();
							   cout << endl;
						   }
						   cout << endl;
					   }
					   else
						   cout << "没有90分到100分的学生" << endl << endl;
					   if(flag_case1==1)
						   i=0;
					   else
						   i=n;
					   ofstream ofile("H:\\student_in.txt", ios::out);
					   for (i ; i < zongshu; i++)
					   {//把三个私有变量信息插入到文件
						   ofile << p[i].student_name() << "\t";
						   ofile << p[i].student_idnumber() << "\t";
						   ofile << p[i].student_grade() << endl;
					   }
					   cout << "即将返回页面主菜单,进行重新选择" << endl;
				   }
				   else
				   {
					   cout << "请先执行第一步或第七步之后再执行此步骤！" << endl;
					   cout << "即将返回主页面进行重新选择..." << endl;
				   }
				   system("pause");
				   break;
		}
		case'6'://******************************将学生信息保存到磁盘文件当中，利用追加的方式
		{
				   system("cls");
				   if (flag_case1 == 1||flag_case7==1)
				   {
					   for (int i = 0; i < n; i++)
					   {
						   cout << "student" << "[" << i + 1 << "]" << ":\t";
						   p[i].display();
						   cout << endl;
					   }
					   ofstream ofile("H:\\student_in.txt", ios::app);
					   for (i = 0; i < n; i++)
					   {//把三个私有变量信息插入到文件
						   ofile << p[i].student_name() << "\t";
						   ofile << p[i].student_idnumber() << "\t";
						   ofile << p[i].student_grade() << endl;
					   }
					   cout << endl;
					   cout << "所有学生信息都已保存完毕。" << endl;
				   }
				   else
				   {
					   cout << "请先执行第一步之后再执行此步骤！" << endl;
					   cout << "即将返回主页面进行重新选择..." << endl;
				   }
				   system("pause");
				   break;
		}
		case'7'://*************************从磁盘文件中读入学生信息，并创建学生类对象
		{
				   system("cls");
				   ifstream ofile;
				   string name;
				   string idnumber;
				   string grade;
				   int i = n;
				   ofile.open("H:\\student_in.txt", ios::in);
				   if (ofile.is_open())
				   {
					   for ( i = n; i < N; i++)
					   {//依次提取学生三个基本私有变量信息
						   ofile >> name;
						   ofile >> idnumber;
						   ofile >> grade;
						   p[i].setdate(name, idnumber, grade);
						   if (i >= N)
						   {
						   cout << "文件数据已经全部导入。" << endl;
						   cout << "当前学生数量：" << i << endl;
						   cout << "当前存储容量已达到最大值！" << endl;
						   break;
						   }
					   }
					   if(flag_case1==1)
					   {
						   for (i = 0; i < N; i++)
						   {
							   cout << "student" << "[" << i + 1 << "]" << ":\t";
							   p[i].display();
							   cout << endl;
						   }
					   }
					   else
					   {
						   for (i = n; i < N; i++)
						   {
							   cout << "student" << "[" << i + 1 << "]" << ":\t";
							   p[i].display();
							   cout << endl;
						   }
					   }
					   /*for (i = 0; i < N; i++)
					   {
						   p[i].display();
						   cout << endl;
					   }*/
					   cout << "已成功导入的学生数量：" << i << endl;
					   flag_case7 = 1;
				   }
				   else
				   {
					   cout << "打开文件时出错！";
				   }
				   ofile.close();
				   system("pause");
				   break;
		}
		case'8'://*************************系统退出功能
		{
				   system("cls");
				   jieshu();
				   break;
		}
		default:
		{
				   cin.clear();
				   cin.sync();
				   cout << "输入错误，重新返回主界面。" << endl;
				   system("pause");
				   break;
		}
		}
	} while (panduan != 8);
	return 0;
}

2.复数

#include<iostream>
#include<string>
#pragma   warning (disable: 4786)
#include<vector>
using namespace std;
class CComplex;
ostream& operator<<(ostream& os,CComplex&p);
istream& operator>>(istream& is,CComplex&p);
CComplex operator-(double d,const CComplex&c2);
CComplex* p;
int i;
int n;
int flag=0;
int flag_case3=0,flag_case4=0,flag_case5=0,flag_case6=0,flag_case7=0;
int l;
class CComplex
{
public:
	friend ostream& operator<<(ostream&,CComplex&);
	friend istream& operator>>(istream&,CComplex&);
	CComplex operator+(const CComplex&c);
	CComplex operator-(const CComplex&c);
	CComplex operator+(double d);
	CComplex operator-(double d);
	CComplex(double re=0.0,double im=0.0)
	{
		real=re;
		imag=im;
	}
	friend CComplex operator-(double d,const CComplex&c2);
	CComplex operator=(const CComplex&c);
	CComplex operator[](int z);
	double Real()
	{
		return real;
	}
	double Imag()
	{
		return imag;
	}
	void Dispaly()
	{
		if(real==0)
		{
			if(imag>0)
			cout<<imag<<"i"<<endl;
			if(imag==0)
			cout<<real<<endl;
			if(imag<0)
			cout<<imag<<"i"<<endl;
		}
		else
		{
			if(imag>0)
			cout<<real<<"+"<<imag<<"i"<<endl;
			if(imag<0)
			cout<<real<<imag<<"i"<<endl;
			if(imag==0)
			cout<<real<<endl;
		}
	}
private:
	double real;
	double imag;
};
ostream& operator<<(ostream& os,CComplex&p)
{
	if(p.real==0)
	{
		if(p.imag>0)
		os<<p.imag<<"i"<<endl;
		if(p.imag==0)
		os<<p.real<<endl;
		if(p.imag<0)
		os<<p.imag<<"i"<<endl;
	}
	else
	{
		if(p.imag>0)
		os<<p.real<<"+"<<p.imag<<"i"<<endl;
		if(p.imag<0)
		os<<p.real<<p.imag<<"i"<<endl;
		if(p.imag==0)
		os<<p.real<<endl;
	}
	return os;
}
istream& operator>>(istream& is,CComplex&p)
{
	is>>p.real>>p.imag;
	return is;
}
CComplex CComplex::operator+(const CComplex& c)
{
	CComplex t;
	t.real=real+c.real;
	t.imag=imag+c.imag;
	return t;
}
CComplex CComplex::operator-(const CComplex& c)
{
	CComplex t;
	t.real=real-c.real;
	t.imag=imag-c.imag;
	return t;
}
CComplex CComplex::operator=(const CComplex& c)
{
	real=c.real;
	imag=c.imag;
	return *this;
}
CComplex CComplex::operator+(double d)
{
	CComplex t;
	t.real=real+d;
	t.imag=imag;
	return t;
}
CComplex CComplex::operator-(double d)
{
	CComplex t;
	t.real=real-d;
	t.imag=imag;
	return t;
}
istream & operator>>(istream & in,vector<string>& s)
{
	string str;
	in>>str;
	s.push_back(str);
	return in;
}
CComplex operator-(double d,const CComplex &c2)
{
	return CComplex(d-c2.real,c2.imag);
}
CComplex CComplex::operator[](int z)
{
	cout<<"liujianwei"<<endl;
	return (z-1);
}
void xianshi()
{
	for(i=0;i<=n-1;i++)
	{
		cout<<"("<<i+1<<"):";
		p[i].Dispaly();
	}
}
void zhujiemian()
{
	cout << "                    ************************************" << endl;
	cout << "                            欢迎进入复数计算界面        " << endl;
	cout << endl;
	cout << "                               1 输入复数信息           " << endl;
	cout << "                               2 输出复数信息           " << endl;
	cout << "                               3 两个复数加和           " << endl;
	cout << "                               4 两个复数相减           " << endl;
	cout << "                               5 实数复数相加           " << endl;
	cout << "                               6 实数复数相减           " << endl;
	cout << "                               7 复数之间赋值           " << endl;
	cout << "                               8 获取特定复数           " << endl;
	cout << "                               9 退出当前界面           " << endl;
	cout << endl;
	cout << "                    ************************************" << endl;
	cout << endl;
	cout << "请选择数字命令：";
}
int main()
{
system("color 0b");
	string c1,c2;
	int c1_int,c2_int;
	char* end;
	double shishu;
	char in;
	cout<<"注意：除了键盘输入复数的个数之外，系统将自动开辟6个空间，用于保存计算结果。"<<endl;
	cout<<"请输入复数个数：";
	cin>>n;
	cout<<endl;
	p=new CComplex[n+7];
	do
	{
		system("cls");
		//system("color 1b");
		zhujiemian();
		cin >> in;
		switch(in)
		{
		case'1':
			{
				system("cls");
				for(i=0;i<n;i++)
				{
					cout<<"输入第"<<i+1<<"个的实部和虚部："<<endl;
					cin>>p[i];
				}
				for(i=0;i<n;i++)
				{
					cout<<"("<<i+1<<"):";
					cout<<p[i];
				}
				system("pause");
				break;
			}
		case'2':
			{
				system("cls");
				xianshi();
				if(flag_case3==1)
				{
					cout<<"("<<n+1<<"):";
					p[n+1].Dispaly();
				}
				if(flag_case4==1)
				{
					cout<<"("<<n+2<<"):";
					p[n+2].Dispaly();
				}
				if(flag_case5==1)
				{
					cout<<"("<<n+3<<"):";
					p[n+3].Dispaly();
				}
				if(flag_case6==1)
				{
					cout<<"("<<n+4<<"):";
					p[n+4].Dispaly();
					cout<<"("<<n+5<<"):";
					p[n+5].Dispaly();
				}
				if(flag_case7==1)
				{
					cout<<"("<<n+6<<"):";
					p[n+6].Dispaly();
				}
				system("pause");
				break;
			}
		case'3':
			{
				system("cls");
				xianshi();
				cout<<"请输入想加和的两位复数的下标"<<endl;
				while(cin>>c1>>c2)
				{
					c1_int=static_cast<int>(strtol(c1.c_str(), &end, 10));
					c2_int=static_cast<int>(strtol(c2.c_str(), &end, 10));
					if(c1_int>n||c2_int>n)
					{
						cout<<"输入的下标不在所给范围内部!"<<endl;
						cout<<"请输入想加和的两位复数的下标"<<endl;
					}
					else
					{
						break;
					}
				}
				p[n+1]=p[c1_int-1]+p[c2_int-1];
				cout<<"计算结果为："<<p[n+1];
				flag_case3=1;
				system("pause");
				break;
			}
		case'4':
			{
				system("cls");
				xianshi();
				cout<<"请输入想相减的两位复数的下标"<<endl;
				while(cin>>c1>>c2)
				{
					c1_int=static_cast<int>(strtol(c1.c_str(), &end, 10));
					c2_int=static_cast<int>(strtol(c2.c_str(), &end, 10));
					if(c1_int>n||c2_int>n)
					{
						cout<<"输入的下标不在所给范围内部!"<<endl;
						cout<<"请输入想相减的两位复数的下标"<<endl;
					}
					else
					{
						break;
					}
				}
				p[n+2]=p[c1_int-1]-p[c2_int-1];
				cout<<"计算结果为："<<p[n+2];
				flag_case4=1;
				system("pause");
				break;
			}
		case'5':
			{
				system("cls");
				xianshi();
				cout<<"请输入想加和的一位实数"<<endl;
				cin>>shishu;
				cout<<"请输入想加和复数的下标"<<endl;
				while(cin>>c1)
				{
					c1_int=static_cast<int>(strtol(c1.c_str(), &end, 10));
					if(c1_int>n)
					{
						cout<<"输入的下标不在所给范围内部!"<<endl;
						cout<<"请输入想加和复数的下标"<<endl;
					}
					else
					{
						break;
					}
				}
				p[n+3]=p[c1_int-1]+shishu;
				cout<<"复数和实数的计算结果为："<<p[n+3]<<endl;
				cout<<"实数和复数的计算结果为："<<p[n+3]<<endl;
				cout<<"满足交换律！"<<endl;
				flag_case5=1;
				system("pause");
				break;
			}
		case'6':
			{
				system("cls");
				xianshi();
				cout<<"请输入想相减的一位实数"<<endl;
				cin>>shishu;
				cout<<"请输入想相减复数的下标"<<endl;
				while(cin>>c1)
				{
					c1_int=static_cast<int>(strtol(c1.c_str(), &end, 10));
					if(c1_int>n)
					{
						cout<<"输入的下标不在所给范围内部!"<<endl;
						cout<<"请输入想相减复数的下标"<<endl;
					}
					else
					{
						break;
					}
				}
				p[n+4]=p[c1_int-1]-shishu;
				cout<<"当实数当作被减数时："<<endl;
				cout<<"计算结果为："<<p[n+4];
				cout<<"当复数当作被减数时："<<endl;
				p[n+5]=shishu-p[c1_int-1];
				cout<<"计算结果为："<<p[n+5];
				if((p[n+4].Real()==p[n+5].Real())&&(p[n+4].Imag()==p[n+5].Imag()))
				{
					cout<<"满足交换律！"<<endl;
				}
				else
				{
					cout<<"不满足交换律"<<endl;
				}
				flag_case6=1;
				system("pause");
				break;
			}
		case'7':
			{
				system("cls");
				xianshi();
				if(flag_case3==1)
				{
					cout<<"("<<n+1<<"):";
					p[n+1].Dispaly();
				}
				if(flag_case4==1)
				{
					cout<<"("<<n+2<<"):";
					p[n+2].Dispaly();
				}
				if(flag_case5==1)
				{
					cout<<"("<<n+3<<"):";
					p[n+3].Dispaly();
				}
				if(flag_case6==1)
				{
					cout<<"("<<n+4<<"):";
					p[n+4].Dispaly();
					cout<<"("<<n+5<<"):";
					p[n+5].Dispaly();
				}
				if(flag_case7==1)
				{
					cout<<"("<<n+6<<"):";
					p[n+6].Dispaly();
				}
				cout<<"请输入需要赋值的下标"<<endl;
				while(cin>>c1)
				{
					c1_int=static_cast<int>(strtol(c1.c_str(), &end, 10));
					if(c1_int>n+6)
					{
						cout<<"输入的下标不在所给范围内部!"<<endl;
						cout<<"请输入需要赋值的下标"<<endl;
					}
					else
					{
						break;
					}
				}
				p[n+6]=p[c1_int-1];
				cout<<"则第"<<n+6<<"个复数值为:"<<p[n+6]<<endl;
				flag=1;
				flag_case7=1;
				system("pause");
				break;
			}
		case'8':
			{
				system("cls");
				xianshi();
				if(flag_case3==1)
				{
					cout<<"("<<n+1<<"):";
					p[n+1].Dispaly();
				}
				if(flag_case4==1)
				{
					cout<<"("<<n+2<<"):";
					p[n+2].Dispaly();
				}
				if(flag_case5==1)
				{
					cout<<"("<<n+3<<"):";
					p[n+3].Dispaly();
				}
				if(flag_case6==1)
				{
					cout<<"("<<n+4<<"):";
					p[n+4].Dispaly();
					cout<<"("<<n+5<<"):";
					p[n+5].Dispaly();
				}
				if(flag_case7==1)
				{
					cout<<"("<<n+6<<"):";
					p[n+6].Dispaly();
				}
				cout<<"请输入想获取复数的下标"<<endl;
				while(cin>>c1)
				{
					c1_int=static_cast<int>(strtol(c1.c_str(), &end, 10));
					if(c1_int>n+6)
					{
						cout<<"输入的下标不在所给范围内部!"<<endl;
						cout<<"请输入需要赋值的下标"<<endl;
					}
					else
					{
						break;
					}
				}
				cout<<"第"<<c1_int<<"个复数值为:"<<p[c1_int-1]<<endl;
				system("pause");
				break;
			}
		case'9':
			{
			    cout << "即将退出界面" << endl;
			    break;
			}
		default:
		{
				   cin.clear();
				   cin.sync();
				   cout << "输入错误，请重新输入命令：" << endl;
				   system("pause");
				   break;
		}
		}
	}while(in!='9');
	return 0;
}

3.几何形体

#include<iostream>
#include<cmath>
#include<string>
using namespace std;
double max(double x,double y)
{
	return x>y?x:y;

}
const double PI=3.1415926535;
class Geometric_shape
{
public:
	virtual double perimeter()=0;//周长
	virtual double area()=0;//面积
	virtual double volume()=0;//体积
	virtual void Show(){};
};
class Circle:public Geometric_shape//圆
{
	double radius;
public:
	Circle(){radius=0;}//构造函数
	Circle(double vv){radius=vv;}
	double perimeter(){return 2.0*PI*radius;}//周长
	double area(){return PI*radius*radius;}//面积
	double volume(){return 0;}
	double ceshi(){return radius;}
	void Show(){cout<<"半径="<<radius<<endl;}
};
class Rectangle:public Geometric_shape//长方形
{
	double width,length;//宽、长
public:
	Rectangle(){width=0;length=0;}//构造   长、宽
	Rectangle(double wid,double len)
	{
		width=wid;
		length=len;
	}
	Rectangle(Rectangle& rr)
	{
		width=rr.width;
		length=rr.length;
	}
	double perimeter(){return 2.0*(width+length);}//周长
	double area(){return width*length;}//面积
	double volume(){return 0;}//体积
	double ceshi1(){return width;}
	double ceshi2(){return length;}
	void Show(){cout<<"宽="<<width<<'\n'<<"长="<<length<<endl;}
};
class Triangle:public Geometric_shape//三角形
{
	double a,b,c;
public:
	Triangle(){a=0;b=0;c=0;}
	Triangle(double v1){a=v1;}
	Triangle(double v1,double v2,double v3){a=v1;b=v2;c=v3;}
	double perimeter(){return a+b+c;}//周长
	double area()//面积
	{
		double s=(a+b+c)/2.0;
		return sqrt(s*(s-a)*(s-b)*(s-c));
	}
	double volume(){return 0;}//体积
	void Show(){cout<<"边长a="<<a<<'\n'<<"边长b="<<b<<'\n'<<"边长c="<<c<<endl;}
	double ceshi1(){return a;}
	double ceshi2(){return b;}
	double ceshi3(){return c;}
};
class Cube:public Rectangle//正方体
{
	double height;
public:
	Cube(){}
	Cube(double wid,double len,double heg):Rectangle(wid,len){height=heg;}
	double area(){return Rectangle::area()*6;}
	double volume(){return sqrt(Rectangle::area())*Rectangle::area();}
	double ceshi(){return height;}
	void Show(){Rectangle::Show();cout<<"高="<<height<<endl;}
};
class Box:public Rectangle//长方体
{
	double height;
public:
	Box(){height=0;}
	Box(double wid,double len,double heg):Rectangle(wid,len){height=heg;}
	double area(){return Rectangle::area()*2+height*(Rectangle::perimeter());}
	double ceshi(){return height;}
	double volume(){return Rectangle::area()*height;}//体积
};
class Cylinder:public Circle//圆柱体
{
	double height;
public:
	Cylinder(){height=0;}
	Cylinder(double vv,double heg):Circle(vv){height=heg;}
	double volume(){return Circle::area()*height;}
	double ceshi(){return height;}
	void Show(){Circle::Show();cout<<"高="<<height<<endl;}
};
class Cone:public Circle//圆锥体
{
	double genera;//母线
public:
	Cone(){genera=0;}
	Cone(double vv,double gen):Circle(vv){genera=gen;}
	double area(){return Circle::area()+sqrt(Circle::area()/PI)*genera;}
	double volume(){return Circle::area()/3*sqrt(genera*genera-Circle::area()/PI);}
	void Show(){Circle::Show();cout<<"母线="<<genera<<endl;}
	double ceshi(){return genera;}
};
class Three_pyramid:public Triangle//正三棱锥
{
	double dd;//侧棱长
public:
	Three_pyramid(){dd=0;}
 	Three_pyramid(double a,double b,double c,double d):Triangle(a,b,c){dd=d;}
	double area(){return Triangle::area()+3*sqrt(Triangle::area()*4/sqrt(3))/2*sqrt(dd*dd-Triangle::area()/sqrt(3));}
	double volume(){return Triangle::area()/3*sqrt(dd*dd-Triangle::area()*4/sqrt(3)/3);}
	void Show(){Triangle::Show();cout<<"侧棱="<<dd<<endl;}
	double ceshi(){return dd;}
};
void mainjiemian()
{
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << "                          欢迎进入几何图形计算系统       " << endl;
	cout << "                   ☆                                  ☆" <<endl;
	cout << "                                   0 圆                  " << endl;
	cout << "                   ☆              1 圆锥              ☆" << endl;
	cout << "                                   2 圆柱体              " << endl;
	cout << "                   ☆              3 矩形              ☆" << endl;
	cout << "                                   4 正方体              " << endl;
	cout << "                   ☆              5 长方体            ☆" << endl;
	cout << "                                   6 三角形              " << endl;
	cout << "                   ☆              7 正三棱锥          ☆" << endl;
	cout << "                                   8 比较面积            " << endl;
	cout << "                   ☆              9 退出              ☆" << endl;
	cout << endl;
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << endl;
	cout << endl;
	cout << "请选择数字命令：";
}
void jieshu()//结束显示
{
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << endl;
	cout << "                   ☆            感谢您的使用！        ☆" << endl;
	cout << endl;
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << endl;
}
int main()
{
system("color 0b");
	int panduan;
	string in;//命令
	char* end;//末端指针
	Geometric_shape* gs;
	double c1r=0;//圆的半径
	double co1r=0,co1ge=0;//圆锥半径与母线长
	double cy1r=0,cy1h=0;//圆柱底面半径与高
	double re1w=0,re2l=0;//矩形的宽与长
	double cu1w=0,cu1l=0,cu1h=0;//正方体的棱长
	double bo1w=0,bo1l=0,bo1h=0;//长方体的宽、长、高
	double tr1a=0,tr1b=0,tr1c=0;//三角形的三边长度
	double th1b=0,th1c=0,th1a=0,th1d=0;//正三棱锥底面边长与侧棱长
	double bj[14]={0};
	do
	{
		system("color DE");
		panduan =10;
		system("cls");
		mainjiemian();
		cin >> in;
		if (!cin)
		{
			cin.clear();//清除cin的错误状态
			cin.sync();//清空cin缓冲区里面未读取的信息...
			cout << "输入错误，重新返回主界面。" << endl;
			system("pause");
			//cin >>in;
			continue;
		}
		if(in.length()<2)
			panduan = static_cast<int>(strtol(in.c_str(), &end, 10));
		switch (panduan+48)
		{
		case'0':
			{
				system("cls");
				cout<<"请输入圆的半径："<<endl;
				cin>>c1r;
				Circle c1(c1r);
				try
				{
					double ceshi;
					ceshi=c1.ceshi();
					if(ceshi<0)
					{
						cout<<"圆的半径:"<<ceshi<<endl;
						throw "圆的半径小于0，无法计算\n";
					}
					else
					{
						gs=&c1;
						gs->Show();
						cout<<"圆周长："<<c1.perimeter()<<'\t';
						cout<<"圆面积："<<c1.area()<<'\t';
						cout<<"圆体积："<<c1.volume()<<endl<<endl;
					}
				}
				catch(char* message)
				{
					cout<<message<<endl;
				}
				bj[0]=c1.area();
				system("pause");
				break;
			}
		case'1':
			{
				system("cls");
				cout<<"请输入圆锥半径："<<endl;
				cin>>co1r;
				cout<<"请输入圆锥母线长度"<<endl;
				cin>>co1ge;
				Cone co1(co1r,co1ge);
				try
				{
					double ceshi1,ceshi2;
					ceshi1=co1.Circle::ceshi();
					ceshi2=co1.Cone::ceshi();
					if(ceshi1<=0||ceshi2<=0||ceshi1>=ceshi2)
					{
						cout<<"底面半径:"<<ceshi1<<'\t'<<"圆锥母线:"<<ceshi2<<endl;
						throw "[1].底面半径与圆锥母线两项值存在小于0\n[2].母线长小于底面半径的，无法计算\n";
					}
					else
					{
						gs=&co1;
						gs->Show();
						cout<<"圆锥底周长："<<co1.perimeter()<<'\t';
						cout<<"圆锥表面积："<<co1.area()<<'\t';
						cout<<"圆锥体积："<<co1.volume()<<endl<<endl;
					}
				}
				catch(char* message)
				{
					cout<<message<<endl;
				}
				bj[1]=co1.Circle::area();
				bj[2]=co1.area();
				system("pause");
				break;
			}
		case'2':
			{
				system("cls");
				cout<<"请输入圆柱半径："<<endl;
				cin>>cy1r;
				cout<<"请输入圆柱的高"<<endl;
				cin>>cy1h;
				Cylinder cy1(cy1r,cy1h);
				try
				{
					double ceshi1,ceshi2;
					ceshi1=cy1.Circle::ceshi();
					ceshi2=cy1.Cylinder::ceshi();
					if(ceshi1<=0||ceshi2<=0)
					{
						cout<<"底面半径:"<<ceshi1<<'\t'<<"圆柱的高"<<ceshi2<<endl;
						throw "底面半径与圆柱的高两项值存在小于0的，无法计算\n";
					}
					else
					{
						gs=&cy1;
						gs->Show();
						cout<<"圆柱底周长："<<cy1.perimeter()<<'\t';
						cout<<"圆柱表面积："<<cy1.area()<<'\t';
						cout<<"圆柱体积："<<cy1.volume()<<endl<<endl;
					}
				}
				catch(char* message)
				{
					cout<<message<<endl;
				}
				bj[3]=cy1.Circle::area();
				bj[4]=cy1.area();
				system("pause");
				break;
			}
		case'3':
			{
				system("cls");
				cout<<"请输入矩形的宽与长："<<endl;
				cin>>re1w;
				cout<<"请输入巨熊的长："<<endl;
				cin>>re2l;
				Rectangle re1(re1w,re2l);
				try
				{
					double ceshi1,ceshi2;
					ceshi1=re1.Rectangle::ceshi1();
					ceshi2=re1.Rectangle::ceshi2();
					if(ceshi1<=0||ceshi2<=0)
					{
						cout<<"矩形的宽:"<<ceshi1<<'\t'<<"矩形的长"<<ceshi2<<endl;
						throw "矩形的宽与长两项值存在小于0的，无法计算\n";
					}
					else
					{
						gs=&re1;
						gs->Show();
						cout<<"矩形周长："<<re1.perimeter()<<'\t';
						cout<<"矩形面积："<<re1.area()<<'\t';
						cout<<"矩形体积："<<re1.volume()<<endl<<endl;
					}
				}
				catch(char* message)
				{
					cout<<message<<endl;
				}
				bj[5]=re1.area();
				system("pause");
				break;
			}
		case'4':
			{
				system("cls");
				cout<<"请输入正方体的棱长："<<endl;
				cin>>cu1w;
				cu1l=cu1w;
				cu1h=cu1w;
				Cube cu1(cu1w,cu1l,cu1h);
				try
				{
					double ceshi1,ceshi2,ceshi3;
					ceshi1=cu1.Rectangle::ceshi1();
					ceshi2=cu1.Rectangle::ceshi2();
					ceshi3=cu1.Cube::ceshi();
					if(ceshi1<=0||ceshi2<=0||ceshi3<=0)
					{
						cout<<"正方体的宽:"<<ceshi1<<'\t'<<"正方体的长:"<<ceshi2<<'\t'<<"正方体的高:"<<ceshi3<<endl;
						throw "正方体的棱长小于0，无法计算\n";
					}
					else
					{
						gs=&cu1;
						gs->Show();
						cout<<"正方体底周长："<<cu1.perimeter()<<'\t';
						cout<<"正方体表面积："<<cu1.area()<<'\t';
						cout<<"正方体体积："<<cu1.volume()<<endl<<endl;
					}
				}
				catch(char* message)
				{
					cout<<message<<endl;
				}
				bj[6]=cu1.Rectangle::area();
				bj[7]=cu1.area();
				system("pause");
				break;
			}
		case'5':
			{
				system("cls");
				cout<<"请输入长方体的宽："<<endl;
				cin>>bo1w;
				cout<<"请输入长方体的长："<<endl;
				cin>>bo1l;
				cout<<"请输入长方体的高："<<endl;
				cin>>bo1h;
				Box bo1(bo1w,bo1l,bo1h);
				try
				{
					double ceshi1,ceshi2,ceshi3;
					ceshi1=bo1.Rectangle::ceshi1();
					ceshi2=bo1.Rectangle::ceshi2();
					ceshi3=bo1.Box::ceshi();
					if(ceshi1<=0||ceshi2<=0||ceshi3<=0)
					{
						cout<<"长方体的宽:"<<ceshi1<<'\t'<<"长方体的长:"<<ceshi2<<'\t'<<"长方体的高:"<<ceshi3<<endl;
						throw "长方体的宽长高三项值存在小于0的，无法计算\n";
					}
					else
					{
						gs=&bo1;
						gs->Show();
						cout<<"长方体底周长："<<bo1.perimeter()<<'\t';
						cout<<"长方体表面积："<<bo1.area()<<'\t';
						cout<<"长方体体积："<<bo1.volume()<<endl<<endl;
					}
				}
				catch(char* message)
				{
					cout<<message<<endl;
				}
				bj[8]=bo1.Rectangle::area();
				bj[9]=bo1.area();
				system("pause");
				break;
			}
		case'6':
			{
				system("cls");
				cout<<"请输入三角形的边长a："<<endl;
				cin>>tr1a;
				cout<<"请输入三角形的边长b："<<endl;
				cin>>tr1b;
				cout<<"请输入三角形的边长c："<<endl;
				cin>>tr1c;
				Triangle tr1(tr1a,tr1b,tr1c);
				try
				{
					double ceshi1,ceshi2,ceshi3;
					ceshi1=tr1.ceshi1();
					ceshi2=tr1.ceshi2();
					ceshi3=tr1.ceshi3();
					if(ceshi1<=0||ceshi2<=0||ceshi3<=0||(ceshi1+ceshi2)<=ceshi3||(ceshi1+ceshi3)<=ceshi2||(ceshi3+ceshi2)<=ceshi1||sqrt(ceshi1-ceshi2)>=ceshi3||sqrt(ceshi1-ceshi3)>=ceshi2||sqrt(ceshi3-ceshi2)>=ceshi1)
					{
						cout<<"三角形边长a:"<<ceshi1<<'\t'<<"三角形边长b:"<<ceshi2<<'\t'<<"三角形边长c:"<<ceshi3<<endl;
						throw "[1].三角形的边长a,b,c三项值存在小于0的\n[2].三边长度无法构成三角形，无法计算\n";
					}
					else
					{
						gs=&tr1;
						gs->Show();
						cout<<"三角形周长："<<gs->perimeter()<<'\t';
						cout<<"三角形表面积："<<gs->area()<<'\t';
						cout<<"三角形体积："<<gs->volume()<<endl<<endl;
					}
				}
				catch(char* message)
				{
					cout<<message<<endl;
				}
				bj[10]=tr1.area();
				system("pause");
				break;
			}
		case'7':
			{
				system("cls");
				cout<<"请输入正三角形底边边长"<<endl;
				cin>>th1a;
				cout<<"请输入正三棱锥侧棱长"<<endl;
				cin>>th1d;
				th1b=th1c=th1a;
				Three_pyramid th1(th1a,th1b,th1c,th1d);
				try
				{
					double ceshi1,ceshi2,ceshi3,ceshi4;
 					ceshi1=th1.Triangle::ceshi1();
					ceshi2=th1.Triangle::ceshi2();
					ceshi3=th1.Triangle::ceshi3();
					ceshi4=th1.Three_pyramid::ceshi();
					if(ceshi1<=0||ceshi2<=0||ceshi3<=0||ceshi4<=0||ceshi1/sqrt(3)>=ceshi4)
					{
						cout<<"三棱锥底三角形边长a:"<<ceshi1<<'\t'<<"三棱锥底三角形边长b:"<<ceshi2<<'\n'<<"三棱锥底三角形边长c:"<<ceshi3<<'\t'<<"三棱锥侧棱d:"<<ceshi4<<endl;
						throw "[1].三棱锥边长a,b,c,d四项值存在小于0的;\n[2].底面正三角形的长度与侧棱长无法构成正三棱锥;\n无法计算\n";
					}
					else
					{
						gs=&th1;
						gs->Show();
						cout<<"正三棱锥底周长："<<gs->perimeter()<<'\t';
						cout<<"正三棱锥表面积："<<gs->area()<<'\t';
						cout<<"正三棱锥体积："<<gs->volume()<<endl<<endl;
					}
				}
				catch(char* message)
				{
					cout<<message<<endl;
				}
				bj[11]=th1.Triangle::area();
				bj[12]=th1.area();
				system("pause");
				break;
			}
		case'9':
			{
				system("cls");
			    jieshu();
			    break;
			}
		case'8':
			{
				system("cls");
				cout<<"注意：没有输入过的数据一概初始为0！"<<endl<<endl;
				cout<<"[1]"<<"圆面积："<<bj[0]<<endl;
				cout<<"[2]"<<"圆锥底面积："<<bj[1]<<endl;
				cout<<"[3]"<<"圆锥表面积："<<bj[2]<<endl;
				cout<<"[4]"<<"圆柱底面积："<<bj[3]<<endl;
				cout<<"[5]"<<"圆柱表面积："<<bj[4]<<endl;
				cout<<"[6]"<<"矩形面积："<<bj[5]<<endl;
				cout<<"[7]"<<"正方体底面积："<<bj[6]<<endl;
				cout<<"[8]"<<"正方体表面积："<<bj[7]<<endl;
				cout<<"[9]"<<"长方体底面积："<<bj[8]<<endl;
				cout<<"[10]"<<"长方体表面积："<<bj[9]<<endl;
				cout<<"[11]"<<"三角形面积："<<bj[10]<<endl;
				cout<<"[12]"<<"正三棱锥底面积："<<bj[11]<<endl;
				cout<<"[13]"<<"正三棱锥表面积："<<bj[12]<<endl;
				cout<<endl;
				cout<<"请输入相比较面积的下标："<<endl;
				int x,y;
				while(cin>>x>>y)
				{
					if(x>13||y>13)
					{
						cout<<"下标输出不在正常范围之内！"<<endl;
						cout<<"请输入相比较面积的下标："<<endl;
					}
					else
					{
						break;

					}
				}
				cout<<"比较结果中较大值为："<<max(bj[x-1],bj[y-1])<<endl;
				system("pause");
				break;
			}
		default:
			{
				cin.clear();
				cin.sync();
				cout << "输入错误，重新返回主界面。" << endl;
				system("pause");
				break;
			}
		}
    }while (panduan != 9);
	return 0;
}

4.教师与学生

#include<string>
#include<iostream>
#include<fstream>
using namespace std;
int q=0;
enum Tsex{man,woman};
int S,T,n;
struct course
{
	char coursename[25];
	int grade;
};
struct Tcourse
{
	char coursenumber[25];
	char coursename[25];
	int grade[8];
};
class CBirthday
{
public:
	CBirthday()
	{
		year=2000;
		strcpy(month,"01");
		strcpy(day,"01");
	}
	CBirthday(int y,char *m,char *d)
	{
		year=y;
		strcpy(month,m);
		strcpy(month,d);
	}
	void Input()
	{
		cout<<"年：";   cin>>year;
		cout<<"月：";   cin>>month;
		cout<<"日：";   cin>>day;
	}
	void Print()
	{
		cout<<year<<"-"<<month<<"-"<<day<<endl;
	}
private:
	int year;
	char month[5],day[5];
};
class CPerson:public CBirthday
{
public:
	CPerson(char*,char*,Tsex,CBirthday&);
	CPerson();
	~CPerson();
	void input();
	void display();
private:
	char ID[10];
	char Name[20];
	Tsex Sex;
	CBirthday birthday;

};
CPerson::CPerson (char *id,char *name,Tsex sex,CBirthday &d):birthday(d)
{
	strcpy(ID,id);
	strcpy(Name,name);
	Sex=sex;
}
CPerson::CPerson ():birthday()
{
	strcpy(ID,"00000000");
	strcpy(Name," ");
	(int&)Sex=0;
}
CPerson::~CPerson ()
{
	//cout<<"调用CPerson的析构函数"<<endl;
}
void CPerson::input()
{
	cout<<"身份：";    cin>>ID;
	cout<<"姓名：";    cin>>Name;
	cout<<"性别：";
	cin>>(int&)Sex;
	Input();
}
void CPerson::display()
{
	cout<<"身份："<<ID<<endl<<"姓名："<<Name<<'\n'<<"性别：";
	if(Sex==man)   cout<<"男"<<'\n';
	else  cout<<"女"<<'\n';
	cout<<"出生年月日：";
	Print();
}

class CStudent:public CPerson
{
public:
	void input()
	{
		cout<<"输入学生信息："<<endl;
		CPerson::input ();
		cout<<"学号：";cin>>number;
		cout<<"班级名：";cin>>depart;
		inputCourse();
	}
	CStudent();
	CStudent(char *id,char *name,Tsex sex,CBirthday &d,char *num,char *dep);
	~CStudent();
	void inputCourse();
	void displayS();
	course cj[8];
private:
	char number[10];
	char depart[30];

};
CStudent::CStudent()
{
	CPerson();
	strcpy(number,"00000000");
	strcpy(depart," ");
	for(int i=0;i<8;i++)
	{
		strcpy(cj[i].coursename ," ");
		cj[i].grade =-1;
	}
}
CStudent::CStudent (char *id,char *name,Tsex sex,CBirthday &d,char *num,char *dep):CPerson(id,name,sex,d)
{
	strcpy(number,num);
	strcpy(depart,dep);
	for(int i=0;i<8;i++)
	{
		strcpy(cj[i].coursename ," ");
		cj[i].grade =-1;
	}
}
CStudent::~CStudent ()
{
	//cout<<"调用学生类的析构函数"<<endl;
}
void CStudent::inputCourse ()
{
	cout<<"请输入各科成绩：（end结束)"<<'\n';
	char coursename[20];
	int score;
	while(1)
	{
		cin>>coursename;
		if(!strcmp(coursename,"end"))break;
		cin>>score;
		for(int i=0;i<8;i++)
		{
			if(strcmp(cj[i].coursename ," ")==0)
			{
				strcpy(cj[i].coursename ,coursename);
				cj[i].grade =score;
				break;
			}
		}
	}
}
void CStudent::displayS ()
{
	display();
	cout<<"学号:"<<number<<endl;
	cout<<"班级名:"<<depart<<endl;
	cout<<"该生成绩:"<<endl;
	for(int i=0;i<8;i++)
		if(strcmp(cj[i].coursename," ")!=0)
			cout<<cj[i].coursename<<'\t'<<cj[i].grade<<'\n';
		else break;
	cout<<"------------------"<<endl;
}
class CTeacher:public CPerson
{
public:
	void input()
	{
		cout<<"输入教师信息:"<<endl;
		CPerson::input ();
		cout<<"工号：";  cin>>number;
		cout<<"职称：";  cin>>prof;
		cout<<"部门：";  cin>>depart;
		SetScore();
	}
	CTeacher();
	CTeacher(char *id,char *name,Tsex sex,CBirthday &d,string num,string dep,string pro);
	~CTeacher();
	void SetScore();
	void DispScore();
	void SortScore();
	void SetedStuScore(CStudent &);
	void displayT();
private:
	string number;
	string depart;
	string prof;
	Tcourse Tcj[2];
};
CTeacher::CTeacher ()
{
	CPerson();
	number="00000000";
	depart=" ";
	prof=" ";
	for(int i=0;i<2;i++)
	{
		strcpy(Tcj[i].coursename ," ");
		strcpy(Tcj[i].coursenumber ,"000000");
		for(int j=0;j<8;j++)
			Tcj[i].grade [j]=-1;
	}
}
CTeacher::CTeacher(char *id,char *name,Tsex sex,CBirthday &d,string num,string dep,string pro):CPerson(id,name,sex,d)
{
	number=num;
	depart=dep;
	prof=pro;
	for(int i=0;i<2;i++)
	{
		strcpy(Tcj[i].coursename ," ");
		strcpy(Tcj[i].coursenumber ,"000000");
		for(int j=0;j<8;j++)
			Tcj[i].grade [j]=-1;
	}
}
CTeacher::~CTeacher ()
{
	//cout<<"调用教师类的析构函数"<<endl;
}
void CTeacher::SetScore ()
{
	cout<<"请输入所教课程数目："<<endl;
	cin>>q;
	for(int i=0;i<q;i++)
	{
		cout<<"课程名"<<endl;
		cin>>Tcj[i].coursename;
		cout<<"各个学生的成绩"<<endl;
		for(int j=0;j<8;j++)
			cin>>Tcj[i].grade [j];
	}
}
void CTeacher::DispScore ()
{
	for(int i=0;i<q;i++)
	{
		cout<<"课程名："<<Tcj[i].coursename <<endl;
		for(int j=0;j<8;j++)
			cout<<"("<<j+1<<")"<<"    "<<Tcj[i].grade [j]<<endl;
	}
}
void CTeacher::SortScore()
{
	int a[8];
	int b[8];
	int c[8];
	int d[8];
	int e[8];
	int f[8];
	int g[8];
	int h[8];
	for(int i=0;i<8;i++)
	{
		a[i]=Tcj[0].grade [i];
		b[i]=Tcj[1].grade [i];
		c[i]=Tcj[2].grade [i];
		d[i]=Tcj[3].grade [i];
		e[i]=Tcj[4].grade [i];
		f[i]=Tcj[5].grade [i];
		g[i]=Tcj[6].grade [i];
		h[i]=Tcj[7].grade [i];
	}
	int t;
	for( i=0;i<8;i++)
	{
		for(int j=0;j<=8-i;j++)
		{
			if(a[j]<a[j+1])
			{
				t=a[j];
				a[j]=a[j+1];
				a[j+1]=t;
			}
			if(b[j]<b[j+1])
			{
				t=b[j];
				b[j]=b[j+1];
				b[j+1]=t;
			}
			if(c[j]<c[j+1])
			{
				t=c[j];
				c[j]=c[j+1];
				c[j+1]=t;
			}
			if(d[j]<d[j+1])
			{
				t=d[j];
				d[j]=d[j+1];
				d[j+1]=t;
			}
			if(e[j]<e[j+1])
			{
				t=e[j];
				e[j]=e[j+1];
				e[j+1]=t;
			}
			if(f[j]<f[j+1])
			{
				t=f[j];
				f[j]=f[j+1];
				f[j+1]=t;
			}
			if(g[j]<g[j+1])
			{
				t=g[j];
				g[j]=g[j+1];
				g[j+1]=t;
			}
			if(h[j]<h[j+1])
			{
				t=h[j];
				h[j]=h[j+1];
				h[j+1]=t;
			}
		}
	}
	cout<<Tcj[0].coursename <<"   成绩排序"<<endl;
	for( i=0;i<8;i++)
		cout<<a[i]<<endl;
	cout<<Tcj[1].coursename <<"   成绩排序"<<endl;
	for( i=0;i<8;i++)
		cout<<b[i]<<endl;
	cout<<Tcj[2].coursename <<"   成绩排序"<<endl;
	for( i=0;i<8;i++)
		cout<<c[i]<<endl;
	cout<<Tcj[3].coursename <<"   成绩排序"<<endl;
	for( i=0;i<8;i++)
		cout<<d[i]<<endl;
	cout<<Tcj[4].coursename <<"   成绩排序"<<endl;
	for( i=0;i<8;i++)
		cout<<e[i]<<endl;
	cout<<Tcj[5].coursename <<"   成绩排序"<<endl;
	for( i=0;i<8;i++)
		cout<<f[i]<<endl;
	cout<<Tcj[6].coursename <<"   成绩排序"<<endl;
	for( i=0;i<8;i++)
		cout<<g[i]<<endl;
	cout<<Tcj[7].coursename <<"   成绩排序"<<endl;
	for( i=0;i<8;i++)
		cout<<h[i]<<endl;
}
void CTeacher::SetedStuScore (CStudent &s)
{
	int score;
	for(int i=0;i<2;i++)
		if(strcmp(s.cj[i].coursename," ")!=0)
		{
				cout<<s.cj[i].coursename<<'\t'<<s.cj[i].grade<<endl;
				cout<<"请输入修改的成绩"<<endl;
				cin>>score;
				cout<<s.cj[i].coursename<<'\t'<<score<<endl;
				cout<<"---------------------"<<endl;
		}
		else break;
}
void CTeacher::displayT ()
{
	display();
	cout<<"工号:"<<number<<endl;
	cout<<"部门："<<depart<<endl;
	cout<<"职称："<<prof<<endl;
	cout<<"----------------"<<endl;
}
CStudent *s;//将要创建的对象做成指针类型
CTeacher *t;
void help()//进入显示
{
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << endl;
	cout << "                   ☆     制作小软件，我们是认真的！   ☆" << endl;
	cout << endl;
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << endl;
	cout << "                                           Made By 刘建伟" << endl;
	cout << endl;
	cout << "请输入学生数："<<endl;
}
void mainjiemian()
{
	cout << "                          欢迎进入学生教师信息系统       " << endl;
	cout << endl;
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << "                                                         " << endl;
	cout << "                   ☆          1 输入学生信息          ☆" << endl;
	cout << "                                                         " << endl;
	cout << "                   ☆          2 输入教师信息          ☆" << endl;
	cout << "                                                         " << endl;
	cout << "                   ☆          3 显示人员信息          ☆" << endl;
	cout << "                                                         " << endl;
	cout << "                   ☆          4 修改学生成绩          ☆" << endl;
	cout << "                                                         " << endl;
	cout << "                   ☆          5 信息读入文件          ☆" << endl;
	cout << "                                                         " << endl;
	cout << "                   ☆          6 退出当前系统          ☆" << endl;
	cout << "                                                         " << endl;
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << endl;
	cout << endl;
	cout << "请选择数字命令：";
}
void jieshu()//结束显示
{
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << endl;
	cout << "                   ☆            感谢您的使用！        ☆" << endl;
	cout << endl;
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << endl;
}
int main()
{
system("color 0b");
	help();
	string sn;
	string in;
	int k,h;
	int i;
	int panduan;
	char* end;//末端指针
	while(cin>>sn)
	{
		int flag_sn=0;
		int l_sn=sn.length();
		k=static_cast<int>(strtol(sn.c_str(), &end, 10));
		if(l_sn>0&&l_sn<5)
		{
			for(i=0;i<l_sn;i++)
			{
				if(sn.at(i)>='0'&&sn.at(i)<='9')
				{
					flag_sn=0;
				}
				else
				{
					flag_sn=1;
				}
			}
		}
		else
		{
			flag_sn=1;
		}
		if(flag_sn==1)
		{
			cout<<"输入有误！"<<endl;
			system("pause");
			system("cls");
			help();
		}
		else
		{
			break;
		}
	}
	S=k;
	cout << "请输入教师数："<<endl;
	while(cin>>sn)
	{
		int flag_sn=0;
		int l_sn=sn.length();
		h=static_cast<int>(strtol(sn.c_str(), &end, 10));
		if(l_sn>0&&l_sn<5)
		{
			for(i=0;i<l_sn;i++)
			{
				if(sn.at(i)>='0'&&sn.at(i)<='9')
				{
					flag_sn=0;
				}
				else
				{
					flag_sn=1;
				}
			}
		}
		else
		{
			flag_sn=1;
		}
		if(flag_sn==1)
		{
			cout<<"输入有误！"<<endl;
			system("pause");
			cout << "请输入教师数："<<endl;
		}
		else
		{
			break;
		}
	}
	T=h;
	s = new CStudent[k];
	t = new CTeacher[h];
	do
	{
		system("cls");
		mainjiemian();
		cin >> in;
		if (!cin)
		{
			cin.clear();//清除cin的错误状态
			cin.sync();//清空cin缓冲区里面未读取的信息...
			cout << "输入错误，重新返回主界面。" << endl;
			system("pause");
			//cin >>in;
			continue;
		}
		if(in.length()<2)
			panduan = static_cast<int>(strtol(in.c_str(), &end, 10));
		else
			panduan=0;
		switch (panduan+48)
		{
		case'1'://输入学生信息
			{
				system("cls");
				for(i=0;i<k;i++)
				{
					cout<<"请输入第"<<i+1<<"位同学的信息："<<endl;
					s[i].input();
				}
				system("pause");
				break;
			}
		case'2'://输入教师信息
			{
				system("cls");
				for(i=0;i<h;i++)
				{
					cout<<"请输入第"<<i+1<<"位教师的信息："<<endl;
					t[i].input();
				}
				system("pause");
				break;
			}
		case'3'://显示学生与教师信息
			{
				system("cls");
				for(i=0;i<k;i++)
				{
					cout<<"["<<i+1<<"]";
					s[i].displayS();
					cout<<endl;
				}
				for(i=0;i<h;i++)
				{
					cout<<"["<<i+1<<"]";
					t[i].displayT();
					cout<<endl;
					t[i].DispScore();
					cout<<endl;
				}
				system("pause");
				break;
			}
		case'4'://修改学生成绩
			{
				system("cls");
				for(i=0;i<k;i++)
				{
					cout<<"["<<i+1<<"]";
					s[i].displayS();
					cout<<endl;
				}
				int m;
				cout<<"输入要修改的学生信息的学生下标："<<endl;
				cin>>m;
				for(i=0;i<h;i++)
				{
					t[i].SetedStuScore (s[m-1]);
				}
				system("pause");
				break;
			}
		case'5'://写入文件
			{
				system("cls");
				fstream iofile;
				iofile.open("C:\\Users\\liujianwei\\Desktop\\新建文本文档.txt",ios::in|ios::out|ios::binary );
				if(!iofile)
				{
					cerr<<"file open error!"<<endl;
					return -1;
				}
				for(i=0;i<k;i++)
				{
					iofile.write((char*)&s[i],sizeof(s[i]));
				}
				for(i=0;i<h;i++)
				{
					iofile.write((char*)&t[i],sizeof(t[i]));
				}
				cout<<"保存成功！"<<endl;
				iofile.close();
				system("pause");
				break;
			}
		case'6'://退出结束
			{
				system("cls");
			    jieshu();
			    break;
			}
		default:
			{
				cin.clear();
				cin.sync();
				cout << "输入错误，重新返回主界面。" << endl;
				system("pause");
				break;
			}
		}
	}while(panduan!=6);
	return 0;
}

5.职工信息

#include<iostream>
#include<string>
#include<iostream>
#include<fstream>
#include<ostream>
#include<iomanip>//setw(),控制空格
#include<algorithm>//为了计算文件里面含有的对象个数
#include<windows.h>
#include<cstdlib>//防止^Z导致程序异常
#include<mmsystem.h>//控制音乐播放的头文件
#pragma comment(lib, "Winmm.lib")//控制音乐播放的头文件
using namespace std;
class Cworker
{
private:
	string wo;
	string na;
	string se;
	string ag;
	string xu;
	string sa;
	string ad;
	string ph;
public:
	void setdate(string worknumber,string name,string sex,string age,string xueli,string salary,string adress,string phonenumber)
	{
		wo=worknumber;
		na=name;
		se=sex;
		ag=age;
		xu=xueli;
		sa=salary;
		ad=adress;
		ph=phonenumber;
	}
	void display()
	{
		cout<<"职工号:"<<std::left<<setw(15)<<wo;
		cout<<"姓名:"<<std::left<<setw(8)<<na;
		cout<<"性别:"<<std::left<<setw(5)<<se;
		cout<<"年龄:"<<std::left<<setw(5)<<ag;
		cout<<"学历:"<<std::left<<setw(20)<<xu;
		cout<<"工资:"<<std::left<<setw(17)<<sa;
		cout<<"地址:"<<std::left<<setw(18)<<ad;
		cout<<"电话号:"<<std::left<<setw(5)<<ph;
	}
	string work_worknumber()
	{
		return wo;
	}
	string find_worknumber()
	{
		return wo;
	}
	string find_NAME()
	{
		return na;
	}
	string worker_workernumber()
	{
		return wo;
	}
	string worker_name()
	{
		return na;
	}
	string worker_sex()
	{
		return se;
	}
	string worker_age()
	{
		return ag;
	}
	string worker_xueli()
	{
		return xu;
	}
	string worker_salary()
	{
		return sa;
	}
	string worker_adress()
	{
		return ad;
	}
	string worker_phonenumber()
	{
		return ph;
	}
	void revise()
	{
		cout << "请根据以下提示进行修改。" << endl;
	    cout << "姓名：";
	    cin >> na;
	    cout << "性别（男或女）：";
	    cin >> se;
	    cout << "年龄：";
	    cin >> ag;
	    cout << "学历：";
	    cin >> xu;
	    cout << "工资：";
	    cin >> sa;
	    cout << "地址：";
	    cin >> ad;
	    cout << "请输入电话号：";
	    cin >> ph;
	}
	int count()
	{
		int score;
		char* end;
		string salary;
		score = static_cast<int>(strtol(sa.c_str(), &end, 10));//使用strtol（string to long） 利用string的c_str()转化为C风格字符串
		return score;
	}
	Cworker operator=(const Cworker&c);
};
Cworker Cworker::operator=(const Cworker& c)
{
	wo=c.wo;
	na=c.na;
	se=c.se;
	ag=c.ag;
	xu=c.xu;
	sa=c.sa;
	ad=c.ad;
	ph=c.ph;
	return *this;
}
Cworker *p;//将要创建的对象做成指针类型
void mainjiemian()
{
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << "                           欢迎进入职工信息管理系统      " << endl;
	cout << "                   ☆                                  ☆" <<endl;
	cout << "                               1 录入职工信息            " << endl;
	cout << "                   ☆          2 输出职工信息          ☆" << endl;
	cout << "                               3 查询职工信息            " << endl;
	cout << "                   ☆          4 修改职工信息          ☆" << endl;
	cout << "                               5 整理职工信息            " << endl;
	cout << "                   ☆          6 文件录入信息          ☆" << endl;
	cout << "                               7 文件读取信息            " << endl;
	cout << "                   ☆          8 退出管理系统          ☆" << endl;
	cout << endl;
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << endl;
	cout << endl;
	cout << "请选择数字命令：";
}
void help()//进入显示
{
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << endl;
	cout << "                   ☆     制作小软件，我们是认真的！   ☆" << endl;
	cout << endl;
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << endl;
	cout << "                                           Made By 刘建伟" << endl;
	cout << endl;
	cout << "温馨提示：^C为强制退出程序"<<endl;
	cout << "请输入职工人数：";
}
void jieshu()//结束显示
{
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << endl;
	cout << "                   ☆            感谢您的使用！        ☆" << endl;
	cout << endl;
	cout << "                   ★-----★---------★---------★-----★" << endl;
	cout << endl;
}
void kaobei()//拷贝文件到test1.txt
{
	char ch;
	ifstream file("H:\\worker_in.txt");//读取H盘文件
	ofstream file1("H:/test1.txt");//创建文本文件
	while(file.get(ch))//读取文本内容
	{
		//cout<<ch;//输出文本内容到控制台
		file1<<ch;//写入内容到文件
	}
	file.close();//关闭文件流
	file1.close();//关闭文件流
	cout<<endl;
}
void play()
{
       // 注意PlaySound只能播放没有经过压缩的wav格式的声音文件
	PlaySound("C:\\Users\\liujianwei\\Desktop\\yinyue.wav",NULL,SND_FILENAME|SND_ASYNC);//控制音乐输出，带有三个参数，loop为阻塞
}
int line()
{
	ifstream file1("H:\\test1.txt");//没有就创建
	string str;
	int line = 0;
	while (file1)
	{
		getline(file1, str);
		remove(str.begin(), str.end(), ' ');//删除从文件开始到结束中的空格
		remove(str.begin(), str.end(), '\t');//删除从文件开始到结束中的空格
		if (str.length() > 0)//如果有一行除去空格之后不为零就算作是一个对象
			line++;
	}
	return line;
}
int main()
{
	play();//播放音乐
	system("color 0b");
	help();
	int line_file, N;//文件里的学生数和总的学生数
	int i;
	string in;//命令
	string sn;
	int n;//键盘输入的职工数
	int flag_case1 = 0;//是否执行了第一步
	int flag_case7 = 0;//是否执行了第七步
	int panduan;
	char* end;//末端指针
        while(cin>>sn)
	{
		if (!cin)
		{
			cin.clear();//清除cin的错误状态
			cin.sync();//清空cin缓冲区里面未读取的信息...
			cout << "输入错误，重新返回主界面。" << endl;
			//system("pause");
			//cout<<flush;
			system("cls");
			help();
			continue;
		}
		int flag_sn=0;
		int l_sn=sn.length();
		n=static_cast<int>(strtol(sn.c_str(), &end, 10));
		if(l_sn>0&&l_sn<5)
		{
			for(i=0;i<l_sn;i++)
			{
				if(sn.at(i)>='0'&&sn.at(i)<='9')
				{
					flag_sn=0;
				}
				else
				{
					flag_sn=1;
				}
			}
		}
		else
		{
			flag_sn=1;
		}
		if(flag_sn==1)
		{
			cout<<"输入有误！"<<endl;
			system("pause");
			system("cls");
			help();
		}
		else
		{
			break;
		}
		/*if(l_sn>1)
		{
			if(n>=0&&n<=100&&l_sn<=3&&sn.at(l_sn-1)>='0'&&sn.at(l_sn-1)<='9'&&sn.at(l_sn-2)>='0'&&sn.at(l_sn-2)<='9')
			{
				break;
			}
			else
			{
				cout<<"输入有误！"<<endl;
				system("pause");
				system("cls");
				help();
			}
		}
		else
		{
			if(n>=0&&n<=100&&l_sn<=3&&sn.at(l_sn-1)>='0'&&sn.at(l_sn-1)<='9')
			{
				break;
			}
			else
			{
				cout<<"输入有误！"<<endl;
				system("pause");
				system("cls");
				help();
			}
		}*/
	}
	cout<<flush;
	kaobei();//拷贝文件
	line_file = line();
	N = n + line_file;
	p = new Cworker[N];
	do
	{
		system("cls");
		mainjiemian();
		cin >> in;
		if (!cin)
		{
			cin.clear();//清除cin的错误状态
			cin.sync();//清空cin缓冲区里面未读取的信息...
			cout << "输入错误，重新返回主界面。" << endl;
			system("pause");
			continue;
		}
		if(in.length()<2)
			panduan = static_cast<int>(strtol(in.c_str(), &end, 10));
		switch (panduan+48)
		{
		case'1'://**************************录入职工信息
		{
				   system("cls");
				   string worknumber;
				   string name;
				   string sex;
				   string age;
				   string xueli;
				   string salary;
				   string adress;
				   string phonenumber;
				   //int now_n;
				   cout<<"请输入现在想输入的学生数："<<endl;
				   for (i = 0; i < n; i++)
				   {
					   cout<<"输入第"<<i+1<<"位职工的信息。"<<endl;
					   cout << "请输入职工号：";
					   cin >> worknumber;
					   cout << "请输入姓名：";
					   cin >> name;
					   cout << "请输入性别（男或女）：";
					   cin >> sex;
					   cout << "请输入年龄：";
					   cin >> age;
					   cout << "请输入学历：";
					   cin >> xueli;
					   cout << "请输入工资：";
					   cin >> salary;
					   cout << "请输入地址：";
					   cin >> adress;
					   cout << "请输入电话号：";
					   cin>>phonenumber;
					   p[i].setdate(worknumber,name,sex,age,xueli,salary,adress,phonenumber);//将输入的数据传给私有变量
				   }
				   flag_case1 = 1;//执行过第一步就标志为1
				   system("pause");
				   break;
		}
		case'2'://***************************输出职工信息
		{
				   system("cls");
				   if (flag_case7 == 1&&flag_case1==0)
				   {
					   for (i = n; i < N; i++)
					   {
						   cout << "worker" << "[" << i + 1 << "]" << ":";
						   p[i].display();
						   cout << endl;
					   }
				   }
				   else if(flag_case7 == 0&&flag_case1==1)
				   {
					   for (i = 0; i < n; i++)
					   {
						   cout << "worker" << "[" << i + 1 << "]" << ":\t";
						   p[i].display();
						   cout << endl;
					   }
				   }
				   else if(flag_case7 == 1&&flag_case1==1)
				   {
					   for (i = 0; i < N; i++)
					   {
						   cout << "student" << "[" << i + 1 << "]" << ":\t";
						   p[i].display();
						   cout << endl;
					   }
				   }
				   else
				   {
					   cout << "请先执行第一步或第七步之后再执行此步骤！" << endl;
					   cout << "即将返回主页面进行重新选择..." << endl;

				   }
				   system("pause");
				   break;
		}
		case'3'://***********************查询职工信息
		{
				   system("cls");
				   if (flag_case1 == 1||flag_case7==1)
				   {
					   int flag_find;
					   cout<<"请选择查询方式：1.按职工号号查询 2.按姓名查询"<<endl;
					   cin>>flag_find;
					   if(flag_find==1)
					   {
						   cout << "请输入要查询的职工号：" << endl;
						   string worknumber;
						   int flag;
						   cin >> worknumber;
						   for (i = 0; i < N; i++)
						   {
							   if (p[i].find_worknumber() == worknumber)
							   {
								   p[i].display();
								   flag = 1;
								   cout << endl;
							   }
						   }
						   if (flag != 1)
						   {
							   cout << "输入信息有误，查询无果。" << endl;
						   }
					   }
					   if(flag_find==2)
					   {
						   cout << "请输入要查询的职工姓名：" << endl;
						   string NAME;
						   int flag;
						   cin>>NAME;
						   for(i=0;i<N;i++)
						   {
							   if(p[i].find_NAME()==NAME)
							   {
								   p[i].display();
								   flag = 1;
								   cout << endl;
							   }
						   }
						   if (flag != 1)
						   {
							   cout << "输入信息有误，查询无果。" << endl;
						   }
					   }
				   }
				   else
				   {
					   cout << "请先执行第一步或第七步之后再执行此步骤！" << endl;
					   cout << "即将返回主页面进行重新选择..." << endl;

				   }
				   system("pause");
				   break;
		}
		case'4'://****************************修改职工信息
		{
				   system("cls");
				   if (flag_case1 == 1||flag_case7==1)
				   {
					   int flag_4=0;
					   cout << "请输入要修改的职工号：" << endl;
					   string worknumber;
					   cin >> worknumber;
					   for (i = 0; i < N; i++)
					   {
						   if (p[i].find_worknumber() == worknumber)
						   {
							   p[i].revise();
							   cout << "修改成功！" << endl;
							   p[i].display();
							   flag_4=1;
						   }
					   }
					   if(flag_4==0)
					   {
						   cout<<"查询无果！无法进行修改。"<<endl;
					   }
				   }
				   else
				   {
					   cout << "请先执行第一步或第七步之后再执行此步骤！" << endl;
					   cout << "即将返回主页面进行重新选择..." << endl;
				   }
				   cout<<endl;
				   system("pause");
				   break;
		}
		case'5'://****************************整理输出学生信息
		{
				   system("cls");
				   if (flag_case1 == 1||flag_case7==1)//通过判断有没有执行第一步和第七步来判断统计输出时总数的大小
				   {
					   int zongshu;
					   if (flag_case7 == 1&&flag_case1==0)
					   {
						   zongshu=N;
					   }
					   if(flag_case7 == 0&&flag_case1==1)
					   {
						   zongshu=n;
					   }
					   if(flag_case7 == 1&&flag_case1==1)
					   {
						   zongshu=N;
					   }
					   cout<<"整理职工信息如下："<<endl;
					   if(flag_case1==1)
						   i=0;
					   else
						   i=n;
					   Cworker temp;
					   for (i; i < zongshu; i++)
					   {
						   for(int j=i+1;j<zongshu;j++)
						   {
							   if(p[i].count()<p[j].count())
							   {
								   temp=p[i];
								   p[i]=p[j];
								   p[j]=temp;
							   }
						   }
					   }
					   if(flag_case1==1)
						   i=0;
					   else
						   i=n;
					   for(i;i<zongshu;i++)
					   {
						   cout << "student" << "[" << i + 1 << "]" << ":";
						   p[i].display();
						   cout << endl;
					   }
					   if(flag_case1==1)
						   i=0;
					   else
						   i=n;
					   ofstream ofile("H:\\worker_in.txt", ios::in);
					   for (i ; i < zongshu; i++)
					   {//把三个私有变量信息插入到文件
						   ofile << p[i].worker_workernumber() << "\t";
						   ofile << p[i].worker_name() << "\t";
						   ofile << p[i].worker_sex() << "\t";
						   ofile << p[i].worker_age() << "\t";
						   ofile << p[i].worker_xueli() << "\t";
						   ofile << p[i].worker_salary() << "\t";
						   ofile << p[i].worker_adress() << "\t";
						   ofile << p[i].worker_phonenumber() << endl;
					   }
				   }
				   else
				   {
					   cout << "请先执行第一步或第七步之后再执行此步骤！" << endl;
					   cout << "即将返回主页面进行重新选择..." << endl;
				   }
				   system("pause");
				   break;
		}
		case'6'://******************************将学生信息保存到磁盘文件当中，利用追加的方式
		{
				   system("cls");
				   if (flag_case1 == 1||flag_case7==1)
				   {
					   for (int i = 0; i < n; i++)
					   {
						   cout << "work" << "[" << i + 1 << "]" << ":";
						   p[i].display();
						   cout << endl;
					   }
					   ofstream ofile("H:\\worker_in.txt", ios::app);
					   for (i = 0; i < n; i++)
					   {//把三个私有变量信息插入到文件
						   ofile << p[i].worker_workernumber() << "\t";
						   ofile << p[i].worker_name() << "\t";
						   ofile << p[i].worker_sex() << "\t";
						   ofile << p[i].worker_age() << "\t";
						   ofile << p[i].worker_xueli() << "\t";
						   ofile << p[i].worker_salary() << "\t";
						   ofile << p[i].worker_adress() << "\t";
						   ofile << p[i].worker_phonenumber() << endl;
					   }
					   cout << endl;
					   cout << "所有学生信息都已保存完毕。" << endl;
				   }
				   else
				   {
					   cout << "请先执行第一步之后再执行此步骤！" << endl;
					   cout << "即将返回主页面进行重新选择..." << endl;
				   }
				   system("pause");
				   break;
		}
		case'7'://*************************从磁盘文件中读入学生信息，并创建学生类对象
		{
				   system("cls");
				   ifstream ofile;
				   string worknumber;
				   string name;
				   string sex;
				   string age;
				   string xueli;
				   string salary;
				   string adress;
				   string phonenumber;
				   int i = n;
				   ofile.open("H:\\worker_in.txt", ios::in);
				   if (ofile.is_open())
				   {
					   for ( i = n; i < N; i++)
					   {//依次提取学生三个基本私有变量信息
						   ofile >> worknumber;
						   ofile >> name;
						   ofile >> sex;
						   ofile >> age;
						   ofile >> xueli;
						   ofile >> salary;
						   ofile >> adress;
						   ofile >> phonenumber;
						   p[i].setdate(worknumber, name, sex,age,xueli,salary,adress,phonenumber);
						   if (i >= N)
						   {
						   cout << "文件数据已经全部导入。" << endl;
						   cout << "当前职工数量：" << i << endl;
						   cout << "当前存储容量已达到最大值！" << endl;
						   break;
						   }
					   }
					   if(flag_case1==1)
					   {
						   for (i = 0; i < N; i++)
						   {
							   cout << "worker" << "[" << i + 1 << "]" << ":";
							   p[i].display();
							   cout << endl;
						   }
					   }
					   else
					   {
						   for (i = n; i < N; i++)
						   {
							   cout << "worker" << "[" << i + 1 << "]" << ":";
							   p[i].display();
							   cout << endl;
						   }
					   }
					   //cout << "已成功导入的职工人员数量：" << i << endl;
					   flag_case7 = 1;
				   }
				   else
				   {
					   cout << "打开文件时出错！";
				   }
				   ofile.close();
				   system("pause");
				   break;
		}
		case'8'://*************************系统退出功能
		{
				   system("cls");
				   jieshu();
				   break;
		}
		default:
		{
				   cin.clear();
				   cin.sync();
				   cout << "输入错误，重新返回主界面。" << endl;
				   system("pause");
				   break;
		}
		}
	} while (panduan != 8);
	delete[]p;
	return 0;
}