定义compare(char *s1, char *s2)函数,以实现比较两个字符串大小的功能。以下程序运行结果为-32,选择正确答案填空:#include
int compare(char *s1, char *s2);void main(){ printf("%d\n", compare("abCd", "abc"));}int compare(char *s1, char *s2){ while(*s1&&*s2&&_____) { s1++; s2++; } return *s1-*s2;}