c - 在c中复制字符串时出现段错误

Question

以下代码显示段错误。如何解决问题？代码有什么问题？

#include <stdio.h>

void stcp (char *, char *);

int
main ()
{
  char *s = "This is first string";
  char *t = "string to be copied";
  stcp (s, t);
  printf ("%s", s);
  getch ();
}

void
stcp (char *s, char *t)
{
  while ((*s++ = *t++) != '\0');

}

Answer 1

默认情况下，字符串文字是const。要使其成为非 const，您必须将其设为数组:

char s[] = "this is my string";
char t[] = "another string";