持续输出clientCount的，在一直刷新

clientCount=1;

console.log(clientCount);

socket.clientNum=clientCount;

clientMap[clientCount]=socket;

if(clientCount%2==1){

socket.emit('waiting','waiting for another person');

}else{

socket.emit('start');

clientMap[(clientCount-1)].emit('start');

}

socket.on('init',function(data){

if(socket.clientNum%2==0){

clientMap[(clientCount-1)].emit('init',data);

}else{

clientMap[(clientCount+1)].emit('init',data);

}

});

socket.on('next',function(data){

if(socket.clientNum%2==0){

clientMap[(clientCount-1)].emit('next',data);

}else{

clientMap[(clientCount+1)].emit('next',data);

}

});

socket.on('disconnect',function(){

});