void mystrcpy(const char *from, char *to)
{
for ( ; *from!='\0'; from++, to++)
*to = *from;
*to = '\0';
}
void main( )
{
char *a = "I am a teacher.";//哪错了?
char *b = "You are a student.";//哪错了
printf("a = %s, b=%s\n",a,b);
mystrcpy(a,b);
printf("a = %s, b=%s\n",a,b);
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