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## 1.插入一行数据到mongoDB - insertOne ~~~ const MongoClient = require('mongodb').MongoClient; var url = 'mongodb://localhost:27017/'; MongoClient.connect(url, { useNewUrlParser: true },(err,client)=>{ if(err) throw err; var test = client.db('test'); var myObj = { name:"chengchao",age:30 } test.collection('douban').insertOne(myObj,(err,res)=>{ if(err) throw err; console.log('one document inserted') client.close() }) }) ~~~ ## 2.插入多行数据到collection - insertMany ~~~ manyDocument-->collection ~~~ ~~~ const MongoClient = require('mongodb').MongoClient; var url = 'mongodb://localhost:27017/'; MongoClient.connect(url, { useNewUrlParser: true },(err,client)=>{ if(err) throw err; var test = client.db('test'); var myObj = [{ name:"chengchao",age:30 },{ name:"jiangwei",age:31 },{ name:"chengcheng",age:6 }] test.collection('douban').insertMany(myObj,(err,res)=>{ if(err) throw err; console.log('Many document inserted') client.close() }) }) ~~~