员工分组案例

示例：

#include <iostream>
using namespace std;

#include <vector>
#include <map>
#include <ctime>
#include<string>

#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";  // 名称种子
	for (int i = 0; i < 10; i++)
	{
		Worker worker;  // 创建一个员工
		worker.m_Name = "员工";
		worker.m_Name += nameSeed[i];

		worker.m_Salary = rand() % 4000 + 10000;  // 10000 ~ 19999

		// 将员工放入到容器中
		v.push_back(worker);
	}
}


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);
	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;
	}
}

void test01()
{

	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);
}
int main()
{
	test01();

	return 0; 
}