  {
 SuperVip,
Vip,
Normal
 }
class Customer
 {
public Customer(string name, CustomerKind kind)
  {
m_Name = name;
m_Kind = kind;
 }
private string m_Name;
public string Name
{
get { return m_Name; }
}
private CustomerKind m_Kind;
public CustomerKind Kind
{
get { return m_Kind; }
}
public override string ToString()
{
return "Name: " + m_Name + "[" + m_Kind.ToString() + "]";
}
}
- 然而，当这种结合使用枚举和条件判断的代码阻碍了你进行更灵活的扩展，并有可能导致日后的维护成本增加，你可以代之以多态，使用Replace Conditional with Polymorphism来对代码进行重构。
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