指向指针的指针

heavensword

#include <iostream>
using namespace std;


void Print(char *arr[],int len)
{
        for (int i=0;i<len;i++)
                cout << (int)arr[i]<<" "<<(char *)(int)arr[i]<<" "<<arr[i]<<endl;

}

int main(int argc ,char * argv[])
{
char * pn[]={"Fred","Barney","Wilma","Betty"};
int num = sizeof(pn)/sizeof(char *);
cout << "sizeof(pn) is "<<sizeof(pn)<<endl;
cout << "sizeof(char *) is "<<sizeof(char *)<<endl;
Print(pn,num);
system("Pause");
}

为什么（int）arr[i]是打印的地址啊？

heavensword

4290336 Fred Fred
4290928 Barney Barney
4290920 Wilma Wilma
4290432 Betty Betty

giniouswr

因为char *arr[] 存储的就是 "Fred","Barney"... 字符串的首地址 (int) 之后当然把地址作为int 输出了