c 查找 子字符串

#include <stdio.h>

int Search(char *s1, char *s2) {
	char *temp = s1;
	int count = 0;
	while(*temp != ‘\0‘) {
		char *tmp1 = temp;
		char *t1 = s2;

		while(*t1 != ‘\0‘ && *tmp1 != ‘\0‘) {
			if(*t1 != *tmp1) 
				break;
			//如果相等，且到最后，返回1
			if(*t1 == *tmp1 && *(t1+1) == ‘\0‘)
				return count;
			//若相等则继续比较下一个字符  
			if(*t1 == *tmp1) {
				t1++;
				tmp1++;
			}
		}
		temp++;
		count++;
	}
	return 0;
}



int main(int argc, char *argv[])
{
	//printf("Hello, world\n");
	char s1[50] = "";
	char s2[50] = "";
	printf("input s1:\n");
	gets(s1);
	printf("input s2:\n");
	gets(s2);
	printf("输出结果：%s 包含 %s,位置在：%d\n",s1,s2,Search(s1,s2));
	return 0;
}