Node.js制作简单聊天室

varnet = require('net');

varcount = 0,

users = {};

varserver = net.createServer(function(conn) {

console.log('连接到');

conn.write(

"rn > welcome to node-chat!"

+"rn > "+ count +" other people are connected at this time."

+"rn > please write your name and press enter: "

);

count++;

// 代表当前连接的昵称

varnickname;

console.log(conn);

conn.on('data',function(data) {

// 删除rn

// data = data.replace('rn', ' ');

// 当前注册的昵称不存在

if(!nickname) {

// 用户名存在

if(users[data]) {

conn.write('nickname in use');

return;

}else{

// 用户名给nickname

nickname = data;

users[nickname] = conn;

for(variinusers) {

users[i].write('rn > '+ nickname +' join our room rn > I: ');

}

}

}else{

// 开始聊天

for(variinusers) {

if(i != nickname) {

users[i].write('rn > '+ nickname +': '+ data);

}

}

}

});

conn.on('close',function() {

count--;

});

conn.setEncoding('utf8');

});

server.listen(3000,function() {

console.log('服务器监听端口3000');

})