C语言实现：替换字符串中指定字符

intReplaceStr(char*sSrc,char*sMatchStr,char*sReplaceStr)
{
intStringLen;
charcaNewString[64];
char*FindPos;
FindPos=(char*)strstr(sSrc, sMatchStr);
if( (!FindPos)||(!sMatchStr) )
return-1;

while( FindPos )
{
memset(caNewString,0,sizeof(caNewString));
StringLen=FindPos-sSrc;
strncpy(caNewString, sSrc, StringLen);
strcat(caNewString, sReplaceStr);
strcat(caNewString, FindPos+strlen(sMatchStr));
strcpy(sSrc, caNewString);

FindPos=(char*)strstr(sSrc, sMatchStr);
}
free(FindPos);
return0;
}

譬如：ReplaceStr("abcd-efgh-ijklm-nopq","-","");//把字符串中的“-”删除掉！