ch21-6.c

C语言程序设计上机指导与练习 冶金工业出版社 刘怀亮

#include "stdio.h"
void main()
{ 
   int length=0;
   char str[20], *p;
   printf("\nInput a string:");
   scanf("%s",【 1 】);
   p=【 2 】;
   while (【 3 】!='\0')
   {  【 4 】;
      p++; 
   }
   printf("\nThe length is:%d", length);
}