c++运算符重载

#include <iostream>
#include "point.h"
#include "circle.h"

using namespace std;

class myint {
    friend ostream & operator<<(ostream &cout,myint p);///友元-全局函数
private:
    int num;
public:
    myint() {
        num = 0;
    }
    myint& operator++(){///返回引用
        this->num++;
        return *this;
    }
    myint operator++(int){///int 代表占位参数，可以用于区分前置和后置的区别；
        myint temp=*this;
        this->num++;
        return temp;
    }
};

ostream & operator<<(ostream &cout,myint p){
    cout<<p.num;
    return cout;
}

int main() {
    int i = 0;
    cout << i++<<endl;
    cout<< (++i)<<endl;
    myint j;
    cout<<j++<<endl;
    cout<<(++j)<<endl;
    return 0;
}

标签：++,c++,运算符,operator,int,num,myint,重载,include
来源： https://blog.csdn.net/weixin_45436102/article/details/114856784