字符串的比较

#include<stdio.h>int main(){int i=0;int j=0;int result;char a[10];char b[10];printf("input a:\n");scanf("%s",a);printf("input b:\n");scanf("%s",b);while((a[i]==b[j])&&(a[i]!='\0')){i++;j++;}if((a[i]=='\0')&&(b[j]=='\0')){result=0;}else{result=a[i]-b[j];}printf("%d\n",result);return 0;}