從未分配的c＃字段的默認值爲0

Question

剛開始使用類。我的int age不適用於我的屬性Age。它始終爲0。

namespace ConsoleApp1 
{ 
    class Program 
    { 
     static void Main(string[] args) 
     { 
      Stuffers s = new Stuffers("Stuffy McStuff"); 
     } 
    } 

    class Stuffers 
    { 
     private int age; 
     public int Age 
     { 
      get { return age; } set { value = age; } 
     } 
    } 
}  

顯示錯誤：

field age never assigned to, and will have default value of 0

---

原非MCVE代碼

namespace ConsoleApp1 
{ 
    class Program 
    { 
     static void Main(string[] args) 
     { 
      Stuffers s = new Stuffers("Stuffy McStuff"); 
      Console.WriteLine(s.GetName()); 

      Console.Write("{0}, what is your age?", s.GetName()); 
      s.Age = Convert.ToInt32(Console.ReadLine()); 

      Stuffers s2 = new Stuffers("Leeroy"); 
      Console.WriteLine(s.GetAge()); 
     } 
    } 

    class Stuffers 
    { 
     private int age; 
     private string name; 
     public int Age 
     { 
      get { return age; } set { value = age; } 
     } 
     public Stuffers(string nameC) 
     { 
      name = nameC; 
     } 
     public string GetName() 
     { 
      return name; 
     } 
     public int GetAge() 
     { 
      return age; 
     } 
    } 
}  

Answer 1

這是錯誤的：

public int Age 
{ 
    get { return age; } set { value = age; } 
} 

它應該是：

public int Age 
{ 
    get { return age; } set { age = value; } 
} 

value是要分配的新值。 age是管家變量。

或者，你可以這樣做：

public int Age { get; set; } 

不宣age。

此外，GetAge()方法似乎是多餘的，它可能是更好的轉GetName成只得到屬性：

class Stuffers 
{ 
    public int Age 
    { 
     get; set; 
    } 
    public string Name { get; private set; } 
    public Stuffers(string nameC) 
    { 
     Name = nameC; 
    } 
} 

Answer 2

你是不是年齡的值設置爲

更改此

public int Age 
{ 
    get { return age; } set { value = age; } 
} 

對此

public int Age 
{ 
    get { return age; } set { age = value; } 
}