Question

C++改错 请在不添加语句的情况下，改正程序中的错误，使之能正确输出信息

#includeusing namespace std;

class base

{ int n1;

private:

base(int m1) {n1=m1;}

void show(){ cout<<"n1="<<n1<<endl; }

}

class derived:public base

{ int n2;

private:

derived(int m2) { n2=m2; }

void show(){ cout<<"n2="<<n2<<endl;}

}

intmain()

{base A(5);

derived B(10);

A.show();

B.show();

}

Answer 1

粗心大意！将base类和derived类里面的private改成public，构造函数不能是private，可能是你一时疏忽