class Same {
public:
void reverse(const char* str)
{
char* A = const_cast<char*>(str);
A[] = ''; printf("%u\n",A);
printf("%u\n",str);
return;
}
}; int main()
{
Same re;
string str = "This is nowcoder";
printf("%u\n", &str);
re.reverse(str.data());
cout<< str << " " << endl;
return ;
}
为什么str的值被修改了呢?