································场景1··························································································································································控制器：$model->scenario='update';return[['name','required','message'=>'用户名不能为空'],['age','required','message'=>'age不能为空','on'=>'create'],['pwd','required','message'=>'passwordcannotbeempty','on'=>'update']];}result:verifynameandpwd...················································································································控制器：$model->情景='更新';$模型->保存（）；模型：publicfunctionrules(){return[['name','required','message'=>'用户名不能为空'],['age','required','message'=>'agecannotbeempty','on'=>'create'],['pwd','required','message'=>'密码不能为空','on'=>'update'],['level','required','message'=>'级别不能为空','on'=>'update'],];}publicfunctionscenarios(){return['update'=>['pwd'],]}结果：验证pwd·····················································································控制器：$model->save();模型：publicfunctionrules(){return[['name','required','message'=>'用户名不能为空'],['age','required','message'=>'年龄不能为empty','on'=>'create'],];}publicfunctionscenarios(){return['update'=>['pwd'],];}结果：错误，缺少场景····························································································································································································································································································································································································································································?????????????????????????模型中：','required','message'=>'用户名不能为空'],['level','required','message'=>'level不能为空'],['age','required','message'=>'年龄不能为空','on'=>'create'],];}publicfunctionscenarios(){return['update'=>['pwd'],'default'=>['name']];}结果：验证name····························································································································································································································在控制器中：$模型->保存（）；在模型中：publicfunctionrules(){return[['name','required','message'=>'用户名不能为空'],['age','required','message'=>'age不能为空','on'=>'create'],];}结果：验证名称
