【适用对象】
| Myslq | Mongodb | Elasticsearch
| --- | --- | --- |
| √ | √ | √ |
【使用说明】
删除一条数据,成功将返回true
【代码示例】
mysql
```
Db::name("zdh_card")->where(["card_id"=>44])->delete();
```
mongodb
```
Db::mongo("zdh_card")->where(["card_id"=>44])->delete();
```
Elasticsearch
```
Db::elasticsearch("zdh_card")->where(["card_id"=>44])->delete();
```