STL常用运算符重载-白红宇

STL常用运算符重载

阅读量：302 次

发布时间：2019-03-03

本文共 1020 字，大约阅读时间需要 3 分钟。

#include 
   
    #include 
    
     #include 
     #include 
      
       using namespace std;class Person {public:    Person(string name, string no, int age) {        this->sname = name;        this->sno = no;        this->sage = age;    }    bool operator<(const Person& p) const {        if (this->sno < p.sno)            return true;        return false;    }    friend ostream& operator<<(ostream& os, const Person& p1) {        cout << "姓名:" << p1.sname << "   学号:" << p1.sno << "   年龄:" << p1.sage << endl;        return os;    }public:    string sname;    string sno;    int sage;};int main() {    Person p3("王麻子", "18170025", 18);    Person p1("张三", "18170021", 19);    Person p2("李四", "18170022", 20);        set
       
         st;    st.insert(p2);    st.insert(p1);    st.insert(p3);        set
        
         ::iterator it; for (it = st.begin(); it != st.end(); it++) cout << *it; system("pause"); return 0;}