有如下程序: include<iostream> using namespace std; class Demo
有如下程序:#include<iostream>usingnamespacestd;classDemo{public:Demo(){cout<<"defaultconstructor ";}Demo(constDemo&x){cout<<"copyconstructor ":}};DemouserCode(Demob){DemoC(b);returnc;}intmain(){Demoa,d;cout<<"callinguserCode()
发布时间:2025-09-01 16:13:33