练习28

#include <iostream>
#include "client.h"
using namespace std;


int Client::ClientNum = 0;
char Client::ServerName = 'a';


int main()
{
Client c1;
c1.ChangeServerName('a');
cout << c1.getClientNum() << endl;
Client c2;
c2.ChangeServerName('b');
cout << c2.getClientNum() << endl;
return 0;
}