#include <stdio.h>
#include <windows.h>
int main()
{
char a[100], b[100];
char *temp;
int counter = 0;
memset( a, sizeof(a), 0 ); //清空内存
memset( a, sizeof(b), 0 ); //清空内存
printf( "Please input source string: " );
gets(a); //从缓冲区获取源字符串.
printf( "Please input find string: " );
gets(b); //从缓冲区获取查找字符串.
temp = a; //将源字符串赋给指针操作.
while( temp )
{
temp = strstr( temp, b ); //在源字符串中查找
//第一次出现的位置,找到返回所处位置,未找到返回NULL.
if( temp != NULL ) //如果能找到
//,指针偏移查找字符串的长度,然后继续循环,直到查找完成.
{
temp += strlen(b);
counter++;
}
}
printf( "find %d times!\n", counter ); //输出找到的个数.
system("pause");
return 0;
}
#include <stdio.h>
#include <string.h>
int main()
{
int findCount(char *str1,char const*str2);
printf("%d",findCount("123412","12"));
return 0;
}
/**
查找str1中str2出现的次数
*/
int findCount(char *str1,char const*str2)
{
int count=0;
char *ptmp=str1;
while((ptmp=strstr(ptmp,str2))!=NULL)
{
ptmp+=strlen(str2);
count++;
}
return count;
}