C 替换字符方法--1

#include "stdafx.h" //linux 底下要去掉这一行
#include <stdio.h>
#include<stdlib.h>
#include <string.h>
#include <malloc.h>
char matchStr1[]="111,aaa,ddd";
static char *strcpyNew(char *strDes, char *strSrc)
{
	if(NULL==strSrc) return strDes;
	strDes=(char *)malloc(strlen(strSrc)+1); //assign more 1 space to save'\0'
  	char *p=strDes;
	while(*strSrc!='\0')
		{
			*p++=*strSrc++;
		}
	  *p='\0';
	return strDes;
}
static char * DelStr(char *sSrc, char *sMatchStr)
{  

    if(strcmp(sMatchStr,"")==0||(NULL==sSrc)||(sSrc==""))return sSrc;
    char *seps =",";
	char *token = strtok(sMatchStr, seps);
    while(token)
	{
        char *FindPos = strstr(sSrc, token);
        if(FindPos)
        while(FindPos)
       {
                 int i;
				 int newLen=strlen(sSrc);
				 int leftLen=FindPos - sSrc;
				 char *p=(char *)malloc(newLen);
				 for(i=0;i<leftLen;i++)
				 {
					p[i]=sSrc[i];
				 }
				 for(i=leftLen;i<newLen;i++)
				 {
				    p[i]=sSrc[i+strlen(token)];
				 }
				  sSrc= strcpyNew(sSrc, p);
				  free(p);
                  FindPos = strstr(sSrc, token);
        }
	  token = strtok(NULL, seps);
	}
        return sSrc;
}
int main(int argc, char* argv[])
{
    char * abc="333 333 aaa aaa ddd 444 aaa 666";
	printf("--原先--\n%s,size=%d\n",abc,strlen(abc)); 

	abc=DelStr(abc,matchStr1);
	printf("--现在--\n%s,size=%d\n",abc,strlen(abc));
	return 0;
}