1.刪除 delete()? destroy()
T::where('id=1')->delete(1);
T::where('id','in',[2,3])->delete();
T::destroy('4,5');
Db::table('t')->delete(6);
Db::table('t')->delete([7,8]);
刪除返回值：
delete()返回刪除的條數(shù)，若一條沒有刪除則返回值為零
destroy（）返回true/false? ,若刪除不純?cè)诘挠涗洠祷刂狄琅f為true
Db::table('t')->destroy([9,10]);報(bào)以下錯(cuò)誤
method not exist:think\db\Query->destroy
T::delete(1); 報(bào)以下錯(cuò)誤
Non-static method think\Model::delete() should not be called statically
