字符串反转

#include<stdio.h>#define N 100void fun(char* s){int i=0;char* p=s;while(*p!='\0'){i++;p++;}printf("字符串长度:%d\n",i);printf("\n");int j;char c;for(j=0;j<i/2;j++){c=*(s+j);*(s+j)=*(s+i-1-j);*(s+i-1-j)=c;}int k;for(k=i;k<N;k++)*(s+k)='\0';}int main(){char s[N];printf("请输入字符串：");scanf("%s",s);printf("\n");fun(s);printf("倒叙输出的字符串:%s\n",s);return 0;}