請共享一個場景，總是在C＃中使用派生類對象調用基類的方法

Question

class Program 
{ 
    static void Main(string[] args) 
    { 
     Teacher Teacher= new Teacher(); 
     Teacher.ShowInfo(); 
     Console.ReadLine(); 
    }  
} 

public class Person 
{ 
    public virtual void ShowInfo() 
    { 
    Console.WriteLine("I am Person"); 
    } 
} 


public class Teacher : Person 
{ 
    public override void ShowInfo() 
    { 
    Console.WriteLine("I am Teacher"); 
    } 
} 

我想輸出： - 「我是人」

是否可以使用虛擬和不使用基本覆蓋關鍵詞。

這意味着我想通過使用派生類對象作爲創建的IM main（）方法來調用基方法。

Answer 1

class Program 
{ 
    static void Main(string[] args) 
    { 
     Teacher Teacher = new Teacher(); 
     ((Person)Teacher).ShowInfo(); //"I am Person" 
     Teacher.ShowInfo();    //"I am Teacher" 
     Console.ReadLine(); 
    } 
} 

public class Person 
{ 
    public virtual void ShowInfo() 
    { 
     Console.WriteLine("I am Person"); 
    } 
} 

public class Teacher : Person 
{ 
    public new void ShowInfo() 
    { 
     Console.WriteLine("I am Teacher"); 
    } 
}