封装用户的功能,对于执行功能的部分,用户接口是一个状态,不同用户决定了执行功能的不同
public
class
User
...
{
private string m_userRight; public string UserRight
...{ get ...{ return m_userRight;
} set ...{ m_userRight=value; } }
}
public
abstract
class
UserAction
...
{ public UserAction() ...{ } protected User m_user; public abstract void Search() ...{ }}
public
class
AdminAction:UserAction
...
{ public override void Search() ...{ if(m_user.UserRight.ToLower()=="admin") MessageBox.Show("you are administrator"); }}
public
class
SuperAction:UserAction
...
{ public override void Search() ...{ if(m_user.UserRight.ToLower()=="super") MessageBox.Show("you are super"); }}
public
class
NormalAction:UserAction
...
{ public override void Search() ...{ if(m_user.UserRight.ToLower()=="normal") MessageBox.Show("your are normal"); }}
