C++STL中map容器练习

案例描述：

• 公司今天招聘了10个员工（ABCDEFGHIJ），10名员工进入公司之后，需要指派员工在那个部门工作
• 员工信息有: 姓名 工资组成；部门分为：策划、美术、研发
• 随机给10名员工分配部门和工资
• 通过multimap进行信息的插入 key(部门编号) value(员工)
• 分部门显示员工信息
  实现思路：

1. 创建10名员工，放到vector中
2. 遍历vector容器，取出每个员工，进行随机分组
3. 分组后，将员工部门编号作为key，具体员工作为value，放入到multimap容器中
4. 分部门显示员工信息

#include <set>
#include <string>
#include <map>
#include <vector>
#include<iostream>
using namespace std;
#define CEHUA 0;
#define MEISHU 1;
#define YANFA 2;
class Person {
    
    
public:
	//Person(string name, int salary) {
    
    
	//	this->m_name = name;
	//	this->m_salary = salary;
	//}
	string m_name;
	int m_salary;
};

void creatEmployee(vector<Person>& v) {
    
    
	string nameseed = "ABCDEFGHIJ";
	for (int i = 0; i < 10; i++) {
    
    
		/*string name = "员工";
		name += nameseed[i];
		int salary = rand() % 1000 + 10000;
		Person p(name, salary);
		v.push_back(p);*/
		Person p;
		p.m_name = "员工";
		p.m_name+= nameseed[i];
		p.m_salary= rand() % 1000 + 10000;
		v.push_back(p);
	}
}
	void setGroupEmployee(vector<Person>& v, multimap<int, Person>&w) {
    
    

	for (vector<Person>::iterator it = v.begin(); it != v.end(); it++) {
    
    
		int Index = rand ()% 3 ;
		w.insert(make_pair(Index,*it));
	}
}
	void showBySetGrop(multimap<int, Person>&w) {
    
    
		
			multimap<int, Person>::iterator pos = w.find(0);
			int num = w.count(0);
			int index = 0;
			cout << "输出策划员工的信息：" << endl;
				for (; pos != w.end() && index != num; index++, pos++) {
    
    
					cout << "姓名: " << pos->second.m_name << "  工资: " << pos->second.m_salary << endl;
			}
				cout << "输出美术员工的信息：" << endl;
				pos = w.find(1);
				 num = w.count(1);
				 index = 0;
				for (; pos != w.end() && index != num; index++, pos++) {
    
    
					cout << "姓名: " << pos->second.m_name << "  工资: " << pos->second.m_salary << endl;
				}
				cout << "输出研发员工的信息：" << endl;
				pos = w.find(2);
				 num = w.count(2);
				 index = 0;
				for (; pos != w.end() && index != num; index++, pos++) {
    
    
					cout << "姓名: " << pos->second.m_name << "  工资: " << pos->second.m_salary << endl;
				}
		}
	
void test01()
{
    
    
	srand((unsigned int)time(NULL));
	vector<Person>v1;
	creatEmployee(v1);
	//allotEmployee(v1);
	multimap<int, Person>wPerson;
	setGroupEmployee(v1,wPerson);
	showBySetGrop(wPerson);
	/*for (vector<Person>::iterator it = v1.begin(); it != v1.end(); it++) {
		cout << "xingming:" << it->m_name << "gongzi:" << it->m_salary << endl;
	}*/
}

int main() {
    
    
	test01();
	system("pause");
	return 0;
}