第八周阅读二

代码：

#include <iostream>using namespace std;class Sample{private:    int x;public:    Sample() {}    Sample (int a){x=a;}    void disp(){cout<<"x="<<x<<endl;}    Sample operator+(Sample &s);};Sample Sample:: operator+( Sample &s){    return Sample(x+s.x);}int main(){    Sample obj1(20);    Sample obj2(20);    Sample obj3;    obj3=obj1+obj2;    obj3.disp();    return 0;}

运行结果：

阅读心得：

运算符重载函数作成员函数。