[問題] 字串利用strcpy問題~
遇到的問題： (題意請描述清楚)
1.ptr="new"換成strcpy(ptr,"new")為何會錯?
從strcpy函數所要的參數列型態，我這樣放應該沒錯吧>"<
2.strcpy(str,"new")換成str="new"為何會錯?
我快被搞混了...哈...
開發平台： (例: VC++ or gcc/g++ or Dev-C++, Windows or Linux)
Dev-C++
有問題的code： (請善用置底文標色功能)
#include <iostream>
#include <cstdlib>
using namespace std;
int main(void)
{
char *ptr="old";
cout << ptr << endl;
cout << (void*)ptr <<endl;
ptr="new"; //strcpy(ptr,"new");
cout << ptr << endl;
cout << (void*)ptr <<endl;
char str[]="old";
cout << str << endl;
cout << (void*)str <<endl;
strcpy(str,"new"); //str="new";
cout << str << endl;
cout << (void*)str <<endl;
system("pause");
return 0;
}
補充說明：
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