MongoDB中插入数据操作

mongo中不需要创建数据库，通过db.集合.insert()插入数据自动创建集合

crud的官方文档地址：​​​​https://docs.mongodb.com/manual/crud/​​​​

插入单条数据

db.test.insert({_id:1,name:"张三",age:24})

db.test.insertOne({_id:1,name:"张三",age:24})

插入多条数据用 [ ] 括起来

db.test.insert([
{_id:2,name:"李四",age:22},
{_id:3,name:"王五",age:25},
])

db.test.insertMany([
{_id:2,name:"李四",age:22},
{_id:3,name:"王五",age:25},
])