C# 数组、多维数组（矩形数组）、锯齿数组（交叉数组）

数组是变量的索引列表，可以在方括号中指定索引来访问数组中的各个成员，其中索引是一个整数，从0开始。

一维数组

多维数组（矩形数组）

数组的数组（锯齿数组）

数组必须在访问之前初始化，数组的初始化有两种方式，可以以字面的形式指定数组的内容，也可以使用new关键词显式的初始化数组;

 int[] arr = { 1, 2, 3 }; int[] arr1 = new int[3];

数组类型是从抽象基类型 Array 派生的引用类型。由于此类型实现了 IEnumerable ，因此可以对 C# 中的所有数组使用 foreach 迭代,foreach循环对数组内容进行只读访问，所以不能改变任何元素的值。

     int[] arr = { 1, 2, 3 };            foreach (var item in arr)            {                Console.WriteLine(item);            }            Array arr2 = Array.CreateInstance(typeof(int), 3);            arr2.SetValue(1, 0);            arr2.SetValue(2, 1);            arr2.SetValue(3, 2);            foreach (var item1 in arr2)            {                Console.WriteLine(item1);            }

多维数组是使用多个索引访问其元素的数组，下面以二维数组为例：

   int[,] arr = { { 1, 2 }, { 4, 5 }, { 7, 8 } };            int[,] arr1 = new int[3, 2];            arr1[0, 0] = 1;            arr1[0, 1] = 2;            foreach (var item in arr)            {                Console.WriteLine(item);            }

方括号中的第一个数字指定花括号对，第二个数字花括号中的元素

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