javascript – Node.js res.send不是一个函数

我正在尝试以下代码,但它给了我一个错误,“res.send不是一个函数”.请帮我.

这是代码：

var http = require('http');
var fs = require('fs');
var connect = require('connect');
var express = require('express');

var app = express();
app.get('/', function(res, req  ) {
        res.send('Hello World');
    });

var server = app.listen(8888, function(){
    var host = server.address().address;
    var port = server.address().port;
    console.log("Example app listening at http://%s:%s", host, port);
});

服务器正常运行并正在连接.正在显示的完整错误是这样的：

TypeError: res.send is not a function
at c:\wamp\www\node\server.js:8:13
at Layer.handle [as handle_request] (c:\wamp\www\node\node_modules\express\lib\router\layer.js:95:5)
at next (c:\wamp\www\node\node_modules\express\lib\router\route.js:137:13)
at Route.dispatch (c:\wamp\www\node\node_modules\express\lib\router\route.js:112:3)
at Layer.handle [as handle_request] (c:\wamp\www\node\node_modules\express\lib\router\layer.js:95:5)
at c:\wamp\www\node\node_modules\express\lib\router\index.js:281:22
at Function.process_params (c:\wamp\www\node\node_modules\express\lib\router\index.js:335:12)
at next (c:\wamp\www\node\node_modules\express\lib\router\index.js:275:10)
at expressInit (c:\wamp\www\node\node_modules\express\lib\middleware\init.js:40:5)
at Layer.handle [as handle_request] (c:\wamp\www\node\node_modules\express\lib\router\layer.js:95:5)

解决方法:

根据API reference,第一个参数是请求,然后是响应

所以

    app.get('/', function(req, res) {
      res.send("Rendering file")
    }

应该解决它.