#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include<assert.h>
#include<stdlib.h>
#define MAX 1000
char *my_strstr(const char *dst,const char *src)
{
assert(dst);
assert(src);
char *p = dst;
char *s1 = p;
char *s2 = src;
while (*s1)
{
s1 = p;
s2 = src;
while ((*s1!=‘\0‘)&&(*s2 != ‘\0‘))
{
if (*s1++ == *s2++)
{
;
}
else
{
p++;
break;
}
}
if (*s2 == ‘\0‘)
{
return p;
}
}
return NULL;
}
int getline(char *line, int limit)
{
assert(line);
char ch = 0;
int i = 0;
while (limit-- && ((ch = getchar()) != EOF) && ch != ‘\n‘)
{
line[i++] = ch;
}
if (ch == ‘\n‘)
{
line[i++] = ‘\n‘;
}
line[i] = ‘\0‘;
return i;
}
int main()
{
/*char *str1 = "abbbcdef";
char *str2 = "bbcd";
char *ret = my_strstr(str1, str2);
printf("%s\n", ret);*/
char *str1 = "ould";
char line[MAX] = { 0 };
while (getline(line, MAX - 1))
{
if (my_strstr(line, str1))
{
printf("%s\n", line);
}
}
system("pause");
return 0;
}【C语言】在终端输入多行信息，找出包含“ould”的行，并打印改行
原文：http://10740329.blog.51cto.com/10730329/1714866