编程实现字符串长度测量

#include <stdio.h>

#include <assert.h>

int stlen1(const char *src){assert(NULL!=src);

int len = 0;

while(*src++!='\0')len++;

return len;}

 

int strlen2(const char *src){

assert(NULL!=src);

const char *temp = src;

while(*src++!='\0');

return (src-temp-1);}

 

int main()

{

char p[]="hello word";

printf("%d",strlen1(p));

printf("%d",strlen2(p);

return 0;

}