C++习题与解析(友元
题1.分析以下程序的执行结果
#include
class Sample
{
int n;
public:
Sample(){}
Sample (int m){n=m;}
friend void square(Sample &s)
{
s.n=s.n*s.n;
}
void disp()
{
cout
题1.分析以下程序的执行结果
#include
class Sample
{
int n;
public:
Sample(){}
Sample (int m){n=m;}
friend void square(Sample &s)
{
s.n=s.n*s.n;
}
void disp()
{
cout
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