目录
![](https://file.jishuzhan.net/article/1766387302457675778/e080517b7564917709ef6abc56f3ab8d.webp)
连接数据库
对应路径下cmd中输入命令mongo即可
![](https://file.jishuzhan.net/article/1766387302457675778/928b282ff2e537cb4de86c0251f3d0c8.webp)
插入数据
j={name:"mongo"}
t={x:3}
提交:db.things.svae(j);db.things.svae(t);
查询:db.things.find();
![](https://file.jishuzhan.net/article/1766387302457675778/b852731a9dcc5641bb55f224bbdf50ff.webp)
for循环插入数据
for (var i=1; i<10; i++) db.things.save({x:4,j:i});
![](https://file.jishuzhan.net/article/1766387302457675778/7a8d51684fa5bba7d969b1bacc9487d8.webp)
每次插入数据都会生成一个ID ("_id")
根据条件查询
db.things.findOne({name:"mongo"});
![](https://file.jishuzhan.net/article/1766387302457675778/03fa03aaa2ce8c7b43862bd4ff0f82d6.webp)
修改数据
修改mongo为mongo_new
db.things.update({name:"mongo"},{$set:{name:"mongo_new"}});
![](https://file.jishuzhan.net/article/1766387302457675778/6b667dac5d6e4ea0689faa49d4ea7419.webp)
删除数据
删除mongo_new
db.things.remove({name:"mongo_new"});
![](https://file.jishuzhan.net/article/1766387302457675778/a9be08394fe9afdb2944e955d8c7c691.webp)
更多具体操作可以借鉴我上传的文档数据进行预览实现。