分隔符函数 VS2010下调试通过

http://learn.akae.cn/media/ch25s01.html

// strtok.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"
#include "stdio.h"
#include "string.h"
/*
int main(void)
{
	char str[] = "root:x::0:root:/root:/bin/bash:";
	char *token;


	token = strtok(str, ":");
	printf("%s\n", token);
	while ( (token = strtok(NULL, ":")) != NULL)
		printf("%s\n", token);
	
	return 0;
}*/

char *split_data( char *init_data, char *separator,int num)
{
char str[] = "root:x:0:root:/root:/bin/bash:";
	char *token=NULL;
	char *p=NULL;
	int j=0;
//	strcpy(p,init_data);	

	//token = strtok(&init_data,&separator);
	token = strtok(init_data, separator);
//	printf("%s\n", token);
	for(int i=0;i<num;i++)
	{
	 if( (token = strtok(NULL, separator)) != NULL)
		//printf("%s\n", token);
		j++;
	}
	//printf("%s\n", token);
		return token;
}

void main(void)
{
	char str[] = "root:x:0:root:/root:/bin/bash:";
	char str2[] = "aa,bb,66,99,uu";
	char *b="10000";
	char a[32]="10000";
/*	char *token;
	int num=3,j=0;
	token = strtok(str2, ",");
//	printf("%s\n", token);
	for(int i=1;i<num;i++)
	{
	  if( (token = strtok(NULL, ",")) != NULL)
	//	printf("%s\n", token);
	//	token = strtok(str2, ",");
	    j++; 
	}
	printf("%s\n", token);
*/
// b=split_data( str2,",",0);
   strcpy(a,split_data( str2,",",3));
   printf("%s\n", a);
}