Strcat, strcpy, memcpy use note

1     Char*p ="Hello";//5 x Length2 3     intlen = strlen (p) +1 ;4 5     //char *str = (char *) malloc (sizeof (char) *len);6     Charstr[ -] ="Nihaoma";7     //memset (str, 0, Len);8     //strcpy (str, p);9strcat (str, p);//STR must have initializationTen     //memcpy (): You need to allocate more space for STR before the system can automatically add One     //memcpy (str, p, Len); ALen =strlen (str); -  -printf"strlen (str):%d\n", Len); theprintf"%s\n", str); -  -     //Char destination[25]; -     //char *blank = "", *c = "C + +", *borland = "Borland"; +  -     ////strcpy Auto-Add, then the use of strcat in the back will not affect +     //strcpy (destination, Borland); A     //strcat (destination, blank); at     //strcat (destination, c); -  -     //printf ("%s\n", destination); -  -  -  inSystem"Pause");

Strcat, strcpy, memcpy use note