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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;}

以上代码定义了一个Person类,并为其定义了一个基于学号的排序运算符和一个用于输出的友元运算符。代码还展示了如何在main函数中创建Person对象并使用这些运算符进行操作。

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