length.c

北大青鸟软件工程师教学ppt的教师用书源代码

#include <stdio.h>
char *msg = "There are better things in Life than to beat people up";
void main()
{
	int count;
	char *ptr;
	/* 指针 ptr 指向字符串 msg */
	/* 通过 ptr++ 将指针递增*/
	for(ptr = msg, count = 0; *ptr != '\0'; ptr++)
	{
		count++;
	}
	printf("\n 该字符串的长度是： %d\n", count);
}