我围绕node-mongodb-native包装器编写了可能是最小的包装器。但是，我觉得它需要改进。它太小了，放在这里很舒服:functionMongoWrapper(){this.db=null;};varmongoWrapper;module.exports=exports=mongoWrapper=newMongoWrapper;//Thismeansthatyoucando`newinclude('mongoWrapper').MongoWrapper()`mongoWrapper.MongoWrapper=MongoWrapper;//ObjectIdisthemosthan