//2.在终端输入多行信息，找出包含“ould”的行，并打印该行。
//如：
//Au,love could you and I with fate conspire
//To grasp this sorry scheme of things entire,
//Would not we shatter it to bitd – and then.
//
//在终端输出上述的文字，输出
//Au,love could you and I with fate conspire
//Au,love could you and I with fate conspire
//To grasp this sorry scheme of things entire,
//Would not we shatter it to bitd – and then.
//Would not we shatter it to bitd – and then.
#include<stdio.h>
#define MAX 1000
int getline(char line[])
{
int ch=0;
int i=0;
int limit=MAX-1;
while ((ch = getchar())&&(--limit)&&(ch!=‘\n‘)&&(ch!=EOF))
{
line[i++]=ch;
}
if(ch==‘\n‘)
{
line[i++]=‘\n‘;
}
line[i]=‘\0‘;
return i;
}
char *strstr(char line[],char *s2)
{
int i=0;
int j=0;
int k=0;
for(i=0;line[i]!=‘\0‘;i++)
{
for(j=0,k=i;(s2[j]!=‘\0‘)&&(line[k]==s2[j]);k++,j++)
{
;
}
if((j>0)&&(s2[j]==‘\0‘))
{
return &line[i];
}
}
return NULL;
}
int main()
{
char line[MAX];
char *p="ould";
while(getline(line))
{
if(strstr(line,p))
{
printf("%s",line);
}
}
system("pause");
return 0;
}
运行结果如下：
原文：http://760470897.blog.51cto.com/10696844/1705626