教你如何自己实现字符串操作

1、char dest[128] = {'\0'}; char *src = "this is a test"; mystrcpy(dest,src); puts(dest);

3、char dest1[128] = {'\0'}; char *src1 = "this is a test"; mystrncpy(dest1,src1,4); puts(dest1);

5、 while(*src != '\0'){ *dest ++ = *src++; } *dest = '\0'; return dest;}

7、while(*src1 != '\0'&&n>0){ *dest1 ++ = *src1++; n--; } *dest1 = '\0'; return dest1;}