C++ map案例学习总结

公司招聘5个员工，五名员工进入公司之后，需要指派员工在哪个部门工作

人员信息：姓名 年龄 电话 工资 等组成

通过Multimap进行信息的插入 保存 显示

分部门显示员工信息 显示全部员工信息

#include<iostream>
#include<vector>
#include<string>
#include<map>
using namespace std;

#define SALE_DEPATMENT 1 //销售
#define DEVELOP_DEPATMENT 2 //研发
#define FINACITAL_DEPATMENT 3 //财务

class Worker {
public:
    string name;
    string tel;
    int age;
    int salary;
};

void Create_Worker (vector<Worker>& v) {
    string seedname = "ABCDE";
    srand(time(0));
    for (int i = 0;i < 5;i ++) {
        Worker worker;
        worker.name = "员工";
        worker.name += seedname[i];
        worker.age = rand()% 11+20;
        worker.tel = "010-6666666";
        worker.salary = rand()% 10000 + 10000;
        //保存员工信息
        v.push_back(worker);
    }
}

void Group (vector<Worker>& v,multimap<int,Worker>& WorkerGroup) {
    //把员工随机分配到不同部门
    //srand(time(0));
    for (vector<Worker>::iterator it = v.begin();it != v.end();it ++) {
        int n = rand()% 3 + 1;
        switch (n) {
            case SALE_DEPATMENT : {
                WorkerGroup.insert(make_pair(SALE_DEPATMENT,*it));
                break;
            }
            case DEVELOP_DEPATMENT : {
                WorkerGroup.insert(make_pair(DEVELOP_DEPATMENT,*it));
                break;
            }
            case FINACITAL_DEPATMENT : {
                WorkerGroup.insert(make_pair(FINACITAL_DEPATMENT,*it));
                break;
            }
        }
    }
}

void ShowWorkers (multimap<int,Worker>& WorkerGroup,int DepartID) {
    multimap<int,Worker>::iterator it = WorkerGroup.find(DepartID);
    int DepartCount = WorkerGroup.count(DepartID);
    int num = 0;
    for (multimap<int,Worker>::iterator pos = it;it != WorkerGroup.end() && num < DepartCount;pos ++,num ++) {
        cout << "\t姓名：" << pos->second.name << " ";
        cout << "年龄：" << pos->second.age << " ";
        cout << "电话：" << pos->second.tel << " ";
        cout << "薪资：" << pos->second.salary << " " << endl;
    }
}

void Print_WorkerByGroup (multimap<int,Worker>& WorkerGroup) {
    //打印销售部员工信息
    cout << "销售部门：" <<endl;
    ShowWorkers(WorkerGroup,SALE_DEPATMENT);
    cout << "研发部门：" <<endl;
    ShowWorkers(WorkerGroup,DEVELOP_DEPATMENT);
    cout << "财务部门：" <<endl;
    ShowWorkers(WorkerGroup,FINACITAL_DEPATMENT);

}

int main () {
    //存放新员工信息
    vector<Worker> v;
    //multimap保存分组信息
    multimap<int,Worker> WorkerGroup;
    //创建员工
    Create_Worker(v);
    //分组
    Group(v,WorkerGroup);
    //打印每一个部门员工信息
    Print_WorkerByGroup(WorkerGroup);
    return 0;
}