C++系列内容的学习目录 → \rightarrow →C++学习系列内容汇总。
员工分组案例的代码如下所示。
#include<iostream> using namespace std; #include<vector> #include<string> #include<map> #include<ctime> /* - 公司今天招聘了10个员工(A、B、C、D、E、F、G、H、I、J),10名员工进入公司之后,需要指派员工在哪个部门工作; - 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)和value(员工); - 分部门显示员工信息。 */ //宏定义 #define CEHUA 0 #define MEISHU 1 #define YANFA 2 //员工类 class Worker { public: string m_Name; int m_Salary; }; //创建员工 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; //10000~19999 //将员工放入容器中 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为部门编号、value为具体员工 m.insert(make_pair(deptId, *it)); } } //分组显示员工 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); //统计策划部门具体人数 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); //统计策划部门具体人数 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); //统计策划部门具体人数 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); //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; //} //2. 员工分组 multimap<int, Worker>mWorker; setGroup(vWorker,mWorker); //3. 分组显示员工 showWorkerByGroup(mWorker); system("pause"); return 0; }
测试效果如下图所示。
总结: 当数据以键值对形式存在,可以考虑用map或multimap。