c++STL常用容器之vector、Multimap容器——员工分组案例（二十）

这里有C++STL——全面总结详细教程（附案例解析）（持续更新中）

//- 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

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


#define CEHUA 0
#define MEISHU 1
#define YANFA 2

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;
		v.push_back(worker);
	}
}

void setGroup(vector<Worker>&v, multimap<int, Worker>&m) {
	for (vector<Worker>::iterator it = v.begin(); it != v.end(); it++) {
		int depId = rand() % 3;
		m.insert(make_pair(depId, *it));
	}
}

void showWorkerByGroup(multimap<int, Worker>&m) {
	cout << "策划部门：" << endl;

	multimap<int, Worker>::iterator pos = m.find(CEHUA);
	int count = m.count(CEHUA);
	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 << "美术部门：" << endl;

	pos = m.find(MEISHU);
	count = m.count(MEISHU);
	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 << "研发部门：" << endl;

	pos = m.find(YANFA);
	count = m.count(YANFA);
	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));

	vector<Worker>vWorker;
	createWorker(vWorker);

	multimap<int, Worker>mWorker;
	setGroup(vWorker, mWorker);

	showWorkerByGroup(mWorker);

	system("pause");
	return 0;
}