初试MongoDB

MongoDB 增删改查实践

### 新增
use test1
db.createCollection("shoes")
db.shoes.insert({"brand":"air jordan","name":"jordan 3","color":"white","name":"white cement"})

### 修改
db.shoes.update({"brand":"air jordan","name":"jordan 3","color":"white","name":"white cement"},{"name":"way of wade"})

![image.png](https://cdn.nlark.com/yuque/0/2023/png/36092131/1691163572285-853d83d8-0a21-4cf4-8511-de41926939a3.png#averageHue=%23383837&clientId=u3ef5ef7c-beeb-4&from=paste&height=112&id=u175077f9&originHeight=224&originWidth=928&originalType=binary&ratio=2&rotation=0&showTitle=false&size=78322&status=done&style=none&taskId=u2e4300d3-501f-4986-a68c-1df3e33326e&title=&width=464)

### 查询
db.shoes.find()

![image.png](https://cdn.nlark.com/yuque/0/2023/png/36092131/1691163711953-1024bbea-ac05-41cb-9eae-d5b2d2110ce2.png#averageHue=%232d2c2b&clientId=u3ef5ef7c-beeb-4&from=paste&height=107&id=u00257ba0&originHeight=214&originWidth=822&originalType=binary&ratio=2&rotation=0&showTitle=false&size=79492&status=done&style=none&taskId=u1d5960c2-89bf-48a0-8923-841a04714ae&title=&width=411)