ex52.c

来自「c51学习的好书！」· C语言 代码 · 共 13 行

    #include <stdio.h>
    main()  {
       char *s = "abcdef";
       int  strlen(char *s);
       printf("\n length of '%s' = %d\n",s,strlen(s));
     }

    int strlen(char *s)  {
       char *p = s;
       while( *p != '\0' ) p++;
       return( p - s );
     }