有如下程序:#include<iostream>using narnespace std;class ONE{int e;public:ONE():c(O){
14 查阅
有如下程序:
#include<iostream>
using narnespace std;
class ONE{
int e;
public:
ONE():c(O){cout<<1;)
ONE(int n):c(13){cout<<2;}
};
class TWO{
ONE oriel;
ONE one2,
public:
TWO(int m):one2(m){cout<<3;}
};
int main(){
TWO t(4);
return O;
}
运行时的输出结果是
A.3
B.23
C.123
D.213
参考答案: