- //
- // main.c
- // test
- //
- // Created by gisjxd on 15/7/17.
- // Copyright (c) 2015年 lalal. All rights reserved.
- //
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- int main(int argc, const char * argv[])
- {
- char str[] = "hello welcome to china\\0"; //源字符串
- printf("input a string:\\n");
- char str2[20]; //要查找的字符串
- fgets(str2, 19, stdin);
- char *res;
- res = memchr(str, str2[0], strlen(str)); //根据要查找的字符串第一个字符,切割源字符串
- if (res == NULL)
- {
- printf("find nothing...\\n");
- return 0;
- }
- int n;
- while (1)
- {
- n = memcmp(res, str2, strlen(str2) - 1); //比较
- if (n != 0)
- {
- if (strlen(res) <= strlen(str2)) //切割出的字符串小于要查找字符串的长度
- {
- printf("find nothing...\\n");
- return 0;
- }
- else
- {
- //根据要查找的第一个字符继续切割
- res = memchr(res + 1, str2[0], strlen(res));
- if (res == NULL)
- {
- printf("find nothing...\\n");
- return 0;
- }
- }
- }
- else
- { //如果n = 0,找到
- printf("%s is found..\\n", str2);
- return 0;
- }
- }
- }
- //该片段来自于http://www.codesnippet.cn/detail/2907201513260.html
来源: http://www.codesnippet.cn/detail/2907201513260.html