MyTask2

先把核心代码贴上

public void solve()
        {
            //Console.WriteLine("请输入你需要生成多少人的数据以及年龄最大值(75以内)：");
            //int flag,end,maxAge;
            int test=0;
            //flag = int.Parse(Console.ReadLine());
            //maxAge = int.Parse(Console.ReadLine());

            Random rd = new Random(GetRandomSeed());
            Random rdd = new Random(GetRandomSeed());

            clearDataPie();//每次分析之前都要对之前一次的数据清空
            //数据生成
            for (int i = 0; i < numPerson; i++)
            {

                int age = rd.Next(1, agePerson+1);
                int sex = rdd.Next(0, 2);

                if(flagSex == 1)
                {
                	sex = Nsex;
                }

                PersonHabit ph = new PersonHabit(age,sex);//这里随机构造出年龄和性别
                //可自己选取性别，默认为空的话则随机

                calculateDataPie(ph);//每个人的数据
                solveSum(ph);//生活习惯数据统计

				//messagePrint+="年龄:"+age+"         性别:"+((sex==0)?"男":"女")+"\r\n";

               // Console.WriteLine("年龄:"+age+"         性别:"+((sex==0)?"男":"女"));
                //ph.Userid = i + 1;
                string sql =
                    "insert into LifeHabit()";
               // if(==false){

              //  	test = 1;
              //  }
              if(this.radioButton1.Checked == true&&this.radioButton2.Checked == false)
              {
                sqlExcute(sql);
                this.button4.Enabled = true;
              }
                //Console.WriteLine("正在生成数据中...       当前为第"+(i+1)+"个人");
                //System.Threading.Thread.Sleep(2000);
                if (i == numPerson)
                    break;
                //ph.print();
            }

            countDataPie();//统计完所有数据之后进行饼状图绘制

            if(test==1)
            	messagePrint += "-------------数据库未布置，操作失败！-------------\r\n\r\n";

            messagePrint += "本次模拟数据统计："+"\r\n\r\n";
            messagePrint += "男生: " + numMen +"  女生: "+ numWomen +"\r\n\r\n";
            messagePrint += "年龄数据分布: 下限-"+ageMin+"岁  上限- "+ageMax+"岁\r\n\r\n";
            messagePrint += "各年龄段分布: 1-18岁 "+age1+"人 19-35岁 "+age2+"人 36-50岁 "+age3+"人 51-75岁 "+age4+"人\r\n\r\n";
            messagePrint += "\r\n\r\n生活习惯数据:\r\n";
            messagePrint += "DietHabit : "+"优-"+menDiet1 +"("+returnPercent(menDiet1)+") 良-"+menDiet2 +"("+returnPercent(menDiet2)+") 中-"+menDiet3 +"("+returnPercent(menDiet3)+") 差-"+menDiet4 +"("+returnPercent(menDiet4)+")\r\n\r\n";
            messagePrint += "DrinkHabit: "+"优-"+menDrink1+"("+returnPercent(menDrink1)+") 良-"+menDrink2+"("+returnPercent(menDrink2)+") 中-"+menDrink3+"("+returnPercent(menDrink3)+") 差-"+menDrink4+"("+returnPercent(menDrink4)+")\r\n\r\n";
            messagePrint += "SportHabit: "+"优-"+menSport1+"("+returnPercent(menSport1)+") 良-"+menSport2+"("+returnPercent(menSport2)+") 中-"+menSport3+"("+returnPercent(menSport3)+") 差-"+menSport4+"("+returnPercent(menSport4)+")\r\n\r\n";
            messagePrint += "SmokeHabit: "+"优-"+menSmoke1+"("+returnPercent(menSmoke1)+") 良-"+menSmoke2+"("+returnPercent(menSmoke2)+") 中-"+menSmoke3+"("+returnPercent(menSmoke3)+") 差-"+menSmoke4+"("+returnPercent(menSmoke4)+")\r\n\r\n";
            messagePrint += "SleepHabit: "+"优-"+menSleep1+"("+returnPercent(menSleep1)+") 良-"+menSleep2+"("+returnPercent(menSleep2)+") 中-"+menSleep3+"("+returnPercent(menSleep3)+") 差-"+menSleep4+"("+returnPercent(menSleep4)+")\r\n\r\n";

            /*
            Console.WriteLine("数据生成完毕...\n***************按0键直接退出，按3键删除生成数据退出...***************");

            end = int.Parse(Console.ReadLine());
            if (end == 3)
            {
                //拼装sql
                String sql = "delete from LiftHabit";
                sqlExcute(sql);
                Console.WriteLine("数据删除完毕...");
            }

            for (int i = 1; i <= 75; i++)
                Console.WriteLine(i);

*/
                //return;
        }

这是最原始的框架，其实最开始做的时候只是一个dos界面，然后能插入数据和取出数据的程序

后面增加了WinForm界面，然后把一些基本的数据能够显示出来

这里给一些比较常用的方法吧

 public static int GetRandomSeed()//随机数种子
        {
        	byte[] bytes = new byte[4];
        	System.Security.Cryptography.RNGCryptoServiceProvider rng = new System.Security.Cryptography.RNGCryptoServiceProvider( );
        	rng.GetBytes(bytes);
        	return BitConverter.ToInt32( bytes , 0 );
        }

public static string returnPercent(int a)//返回数值的百分比
	{
		double percent=Convert.ToDouble(a)/Convert.ToDouble(numPerson);
		string result=string.Format("{0:0.00%}",percent);//得到5.88%
		return result;
	}

public bool outputExcel()//数据导出Excel模版
        {

            using (DbConnection connection = new SqlConnection("server=localhost; user id=sa; password=; database="))
            {
                connection.Open();
                DbCommand command = connection.CreateCommand();
                command.CommandType = System.Data.CommandType.Text;
                command.CommandText = "";//sql表字段
                var reader = command.ExecuteReader();
                Excel.Application application = new Excel.Application();
                Excel.Workbook workbook = application.Workbooks.Add();
                Excel.Worksheet worksheet = workbook.ActiveSheet as Excel.Worksheet;
                var index = 1;
                while (reader.Read())
                {
                    worksheet.Cells[index, 1] = reader.GetInt32(0).ToString();
                    worksheet.Cells[index, 2] = reader.GetString(1);
                    worksheet.Cells[index, 3] = reader.GetString(2);

                    if ("NULL".Equals(reader.GetString(3))==true)
                        worksheet.Cells[index, 4] = "";
                    worksheet.Cells[index, 4] = reader.GetString(3);

                    if ("NULL".Equals(reader.GetString(4)) == true)
                        worksheet.Cells[index, 5] = "";
                    worksheet.Cells[index, 5] = reader.GetString(4);

                    if (reader.GetString(5) == null)
                        worksheet.Cells[index, 6] = "";
                    worksheet.Cells[index, 6] = reader.GetString(5);

                    if (reader.GetString(6) == null)
                        worksheet.Cells[index, 7] = "";
                    worksheet.Cells[index, 7] = reader.GetString(6);

                    if (reader.GetString(7) == null)
                        worksheet.Cells[index, 8] = "";
                    worksheet.Cells[index, 8] = reader.GetString(7);

                    index++;
                }
                reader.Close();
                workbook.SaveAs(@"F:\test.xls");
                workbook.Close();
                application.Quit();
                connection.Close();

            }
            return true;
        }

void Timer1Tick(object sender, System.EventArgs e)//监控饼状图并且在form1内传入数据
    		//因为之前设置的是在design里面做，是可以弄出来的，然后鉴于数据不知道怎么传输过来，我就在design里面设置timer，然后可以做到
    		//点击按钮之后启动
    	{
    		if(flagAgeShowPie == 1)
    		{
    			chart1.Series["Series1"].Points.DataBindXY(xValues, yValues1);
    			//chart1.Series["Series1"].Label = "#PERCENT{P}";

    			//System.Diagnostics.Debug.WriteLine("123321"+yValues2[0]+" "+yValues3[1]+" "+yValues4[2]);

    			chart2.Series["Series2"].Points.DataBindXY(xValues, yValues2);
    			//chart2.Series["Series2"].Label = "#PERCENT{P}";

    			//chart2.Series["Series2"].LegendText = "偏低";
    			chart3.Series["Series3"].Points.DataBindXY(xValues, yValues3);
    			//chart3.Series["Series3"].Label = "#PERCENT{P}";

    			//chart3.Series["Series3"].LegendText = "中";
    			chart4.Series["Series4"].Points.DataBindXY(xValues, yValues4);
    			//chart4.Series["Series4"].Label = "#PERCENT{P}";
    		}
    		if(flagValueChartAreaComboBox<=10&&flagLifeHabitButton==1)//在折线图左边下拉框有值的时候并且上面的按钮也按下才绘图
    		{
    			changeValueChartAreaByIndex();//通过下拉框的值来改变数组值间接改变图形
    			chart5.Series["Series5"].Points.DataBindXY(xValues5, yValues5);//绑定数据
    		}
    			//chart4.Series["Series4"].LegendText = "偏高";
    			//System.Diagnostics.Debug.WriteLine("123123");
    			flagAgeShowPie = 0;
    			//flagLifeHabitButton = 0;

    	}

好了，这一章主要是列出一些常用的方法分享给大家，下一章我们开始讲我遇到的困难~~