#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int SafeStrCpy2KeyWord(char * dest, char * source,int size,char* key)
{
	if(strcmp(key,"NULL") == 0)
	{
		strcpy(source,"NULL");
		return 0;
	}


	char * p=strstr(dest,key);
	int n=p-dest;
	if(n==0)
	{
		strcpy(source,dest);
		return 0;
	}
	strncpy(source,dest,n);
	source[n]='\0';
	return n;
}
int main()
{
	char dest[256],key[256],source[256];
	while(scanf("%s",dest)!=EOF)
	{
		int size=strlen(dest);
		scanf("%s",key);
		while(strcmp(key,"END")!=0)
		{
			int len=SafeStrCpy2KeyWord(dest,source,size,key);
			printf("%d %s\n",len,source);
			scanf("%s",key);
		}
	}
	return 0;
}

• Re:N人帮着看看，strstr函数能用不？ (784) ctzsm 2010-01-17 21:59:59