学习MongoDB基本操作中如何插入文档

db.products.insertOne( { item: "card", qty: 15 } );
insertMany
db.products.insertMany( [ { _id: 10, item: "large box", 
qty: 20 }, { _id: 11, item: "small
box", qty: 55 }, { _id: 12, item: "medium box", qty: 30 } 
] );
Insert
db.collection.insert( <document or array of 
documents>, { writeConcern: <document>, ordered: 
<boolean> } )

资源来源：电子书《玩转MongoDB从入门到实战》，下载链接：https://developer.aliyun.com/topic/download?id=1060