更新&删除 === ## 知识点 - update [table] set [field=newvalue,...] where ... - delete from [table] where ... ## 实战 ``` > update users set score = 29.1 where player = '阿詹' > update users set score = score + 1 where team = '勇士' > update users set score = score + 100 where team IN ('勇士','骑士') > delete from useres where score > 30 ```