使用在 windows 上运行的 node.js 代码连接 g mongodb 的以下代码片段:
var mongo = require("mongodb");
var host = "127.0.0.1";
var port = mongo.Connection.DEFAULT_PORT;
var db = new mongo.db("nodetest", new mongo.Server(host, port, {}));
db.open(function(error){
  console.log("connected" + host + ":" + port);
});
相应的错误是:
C:\nodetest\mongo.js:5
var db = new mongo.db("nodetest", new mongo.Server(host, port, {}));
         ^
TypeError: undefined is not a function
    at Object.<anonymous> (C:\nodetest\mongo.js:5:10)
    at Module._compile (module.js:449:26)
    at Object.Module._extensions..js (module.js:467:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Module.runMain (module.js:492:10)
    at process.startup.processNextTick.process._tickCallback (node.js:244:9)
C:\nodetest>
相同的代码在 ubuntu 上运行良好。任何指针?