MongoDB中插入數據操作

mongo中不需要創建數據庫，通過db.集合.insert()插入數據自動創建集合
crud的官方文檔地址：https://docs.mongodb.com/manual/crud/

插入單條數據

db.test.insert({_id:1,name:"張三",age:24})

db.test.insertOne({_id:1,name:"張三",age:24})

插入多條數據用 [ ] 括起來

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},
])