使用值定义结构数组

Question

我可以使用如下的值定义结构/类数组吗？以及如何？

struct RemoteDetector 
    { 
     public string Host; 
     public int Port; 
    } 

    RemoteDetector oneDetector = new RemoteDetector() { "localhost", 999 }; 
    RemoteDetector[] remoteDetectors = {new RemoteDetector(){"localhost",999}};   

编辑：

RemoteDetector oneDetector = new RemoteDetector() { Host = "localhost", Port = 999 }; 
    RemoteDetector[] remoteDetectors = { new RemoteDetector() { Host = "localhost", Port = 999 } };   

Answer 1

你可以这样做，但不推荐使用它，因为你的结构是可变的。你应该努力争取与你的结构不变。因此，要设置的值应该通过构造函数传递，该构造函数在数组初始化中也足够简单。

struct Foo 
{ 
    public int Bar { get; private set; } 
    public int Baz { get; private set; } 

    public Foo(int bar, int baz) : this() 
    { 
     Bar = bar; 
     Baz = baz; 
    } 
} 

... 

Foo[] foos = new Foo[] { new Foo(1,2), new Foo(3,4) }; 

Answer 2

你想用C#'s object and collection initializer syntax这样的：我的价值观之前，应使用变量名

struct RemoteDetector 
{ 
    public string Host; 
    public int Port; 
} 

class Program 
{ 
    static void Main() 
    { 
     var oneDetector = new RemoteDetector 
     { 
      Host = "localhost", 
      Port = 999 
     }; 

     var remoteDetectors = new[] 
     { 
      new RemoteDetector 
      { 
       Host = "localhost", 
       Port = 999 
      } 
     }; 
    } 
} 

编辑：这是非常重要的，你跟随Anthony's advice并使该结构不可变。我在这里展示了一些C＃的语法，但使用结构时的最佳做法是使它们不可变。