又开提问了，希望有人可以来讲解一下

Question

Answer 1

供参考：

#include<stdio.h>
int strcompare(char* str1,char* str2)
{
    char *p1 = str1,*p2 = str2;
    while(*p1 && *p2 && *p1 == *p2)
    {
       p1++;  p2++;
    }
    return *p1 - *p2;
}
int main(void)
{
    char a[100] = "abcf";
    char b[100] = "abed";
    int ret = 0;
    //gets(a);
    //gets(b);
    ret = strcompare(a,b);
    printf("%d\n",ret);
    return 0;
}