如何初始化结构体数组？ [英] How to initialize array of struct?

问题描述

功能失调的示例：

public struct MyStruct { public int i, j; }

static readonly MyStruct [] myTable = new MyStruct [3] 
{
    {0, 0}, {1, 1}, {2, 2}
}

我知道此代码无效。现在，我该如何记下来（正确的语法）？

I know that this code doesn't work. Now how do I write this down please (proper syntax)?

其背后的想法如下。 Afaik struct数组的元素是值类型，因此myTable指向包含三个MyStruct对象的内存位置（而不是包含三个指向MyStruct对象的（未初始化）指针的内存位置）。

The thought behind this is the following. Afaik the elements of arrays of struct are value types, so myTable points to a memory location containing three MyStruct objects (and not to a memory location containing three (uninitialized) pointers to MyStruct objects).

那么我该如何初始化那些MyStruct对象，正确的语法是什么？我不必再分配它们了，对吧？

So how do I go about initializing those MyStruct objects, what would be the right syntax? I don't have to allocate them anymore, right?

推荐答案

您需要使用 MyStruct ，您可以使用 new 关键字创建。

You need to use actual instances of your MyStruct, which you can create with the new keyword.

这应该有效...

struct MyStruct 
{ 
   int i, j; 

   public MyStruct(int a, int b)
   {
      i = a;
      j = b;
   }
}

static MyStruct[] myTable = new MyStruct[3]
{
   new MyStruct(0, 0),
   new MyStruct(1, 1),
   new MyStruct(2, 2)
};

这篇关于如何初始化结构体数组？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！