c/c++写的小程序

1、替换字符串中某个字符的函数#include char * CharReplace(char * src,char oldChar,char newChar)
{
 char * head=src;
 while(*src!='\0'){
 if(*src==oldChar) *src=newChar;
 src++;
 }
 return head;
}main()
{
 char s[]="21~31~41";
 char * p=s;
 p=CharReplace(s,'~',',');
 printf("%s\n",p);
}