Node.js代碼問題

Question

我是node.js的新手。我在嘗試的代碼中遇到了一些問題。在代碼看看：

var http =require('http'); 
var url = require('url'); 
var events=require('events'); 
var e=new events.EventEmitter(); 

var i=0; 
var clientlist=new Array(); 

function user(nam,channel) { 
this.nam = nam; 
this.chan=channel; 
} 

server = http.createServer(function(req,res) { 
res.writeHead(200,{'Content-Type':'text/html'}); 
res.write('welcome'); 

var pathname = url.parse(req.url).pathname; 
pathname=pathname.substring(1); 
pathnames=pathname.split("&"); 
var c=new user(pathnames[0],pathnames[1]); 
clientlist[i++]=c; 

console.log("user "+pathnames[0]+" joined channel "+pathnames[1]); 

e.emit('userjoined',clientlist[i-1].nam,clientlist[i-1].chan); 

e.on('userjoined',function(n,c) { 
res.write("new user joined with name: "+n+" and he joined channel "+c+"\n"); 
}); 

}); 
server.listen(2000); 

我遇到的問題是：

1. 我沒有得到在瀏覽器這行代碼一個值得歡迎的消息：res.write（「歡迎」） ;但是，我得到終端下方的console.log（）消息

2. 我發出的userjoined事件沒有被捕獲。但是，在關閉服務器之後，所有事情都立即發生。我在瀏覽器中收到歡迎消息，並收到userjoined事件的回調。

有人能告訴我這裏怎麼了？由於

Answer 1

確定有幾個問題：

1. 你需要聲明E.ON userjoined你叫
2. 你需要一個res.end（）在E.ON userjoined之前。

這裏是代碼固定：

var http =require('http'); 
var url = require('url'); 
var events=require('events'); 
var e=new events.EventEmitter(); 

var i=0; 
var clientlist=new Array(); 

function user(nam,channel) { 
this.nam = nam; 
this.chan=channel; 
} 

e.on('userjoined',function(res,n,c) { 
console.log("iuser "+pathnames[0]+" joined channel "+pathnames[1]); 
res.write("new user joined with name: "+n+" and he joined channel "+c+"\n"); 
res.end(); 
}); 

server = http.createServer(function(req,res) { 
res.writeHead(200,{'Content-Type':'text/html'}); 
res.write('welcome'); 

var pathname = url.parse(req.url).pathname; 
pathname=pathname.substring(1); 
pathnames=pathname.split("&"); 

var c=new user(pathnames[0],pathnames[1]); 
clientlist[i++]=c; 

console.log("user "+pathnames[0]+" joined channel "+pathnames[1]); 

e.emit('userjoined',res,clientlist[i-1].nam,clientlist[i-1].chan); 

}); 
server.listen(2000);