问题详情

有如下程序: #include<iostream> using namespace std; class Amount{ int amount; public: Amount(int n=0):amount(n){ } int getAmount( )const{return amount;} Amount&operator+=(Amount A) { amount+=a.amount; return; } }; int main( ){ Amount x(3),y(7); x+=y: cout<<x.getAmount( )<<endl; return 0; } 已知程序的运行结果是10,则下画线处缺失的表达式是


A、*this

B、this

C、&amount

D、amount

时间:2022-01-02 12:32 关键词:

答案解析

A