STLvector和map容器案例

STLvector和map容器案例

3.10.1案例描述

3.10.2实现步骤

代码示例：

#include<iostream>
#include<vector>
#include<map>
#include<ctime>
#include<string>
#define CEHUA 0
#define MEISHU 1
#define YANFA  2
using namespace std;
class Worker
{
    
    
public:
       string m_Name;
       int m_Salary;
};
void createWorker(vector<Worker>&v)
{
    
    
       string nameSeed = "ABCDEFGHIJ";
       for (int i = 0; i < 10; i++)
       {
    
    
              Worker worker;
              worker.m_Name = "员工";
              worker.m_Name += nameSeed[i];
              worker.m_Salary = rand() % 10000 + 10000;       //10000~1999
              //将员工放入到容器中
              v.push_back(worker);
       }
}
//员工分组
void setGroup(vector<Worker>&v, multimap<int, Worker>&m)
{
    
    
       for (vector<Worker>::iterator it = v.begin(); it != v.end(); it++)
       {
    
    
              //产生随机部门编号
              int deptId = rand() % 3;   //0 1 2
              //将员工插入到分组中
              //key部门编号，value具体员工
              m.insert(make_pair(deptId, *it));
       }
}
void showWorkerByGourp(multimap<int, Worker>&m)
{
    
    
       cout << "策划部门：" << endl;
       multimap<int, Worker>::iterator pos = m.find(CEHUA);
       int count = m.count(CEHUA);       //统计具体人数
       int index = 0;
       for (; pos != m.end() && index < count; pos++, index++)
       {
    
    
              cout << "姓名： " << pos->second.m_Name << " 工资：" << pos->second.m_Salary << endl;
       }
       cout << "------------------------------------" << endl;
       cout << "美术部门：" << endl;
       pos = m.find(MEISHU);
       count = m.count(MEISHU);          //统计具体人数
       index = 0;
       for (; pos != m.end() && index < count; pos++, index++)
       {
    
    
              cout << "姓名： " << pos->second.m_Name << " 工资：" << pos->second.m_Salary << endl;
       }
     cout << "------------------------------------" << endl;
       cout << "研发部门：" << endl;
       pos = m.find(YANFA);
       count = m.count(YANFA);           //统计具体人数
       index = 0;
       for (; pos != m.end() && index < count; pos++, index++)
       {
    
    
              cout << "姓名： " << pos->second.m_Name << " 工资：" << pos->second.m_Salary << endl;
       }
}   
int main()
{
    
    
       srand((unsigned int)time(NULL));
       //1.创建员工
       vector<Worker>vWorker;
       createWorker(vWorker);
       //2.员工分组
       multimap<int, Worker>mWorker;
       setGroup(vWorker, mWorker);
       //3.分组显示员工
       showWorkerByGourp(mWorker);
       //测试
       //for (vector<Worker>::iterator it = vWorker.begin(); it != vWorker.end(); it++)
       //{
    
    
       //     cout << "姓名：" << it->m_Name << " 工资：" << it->m_Salary << endl;
       //}
       system("pause");
       return 0;
}