一个变量在同一个作用域中不能够声明两次，如下代码错误。 using System; usingSystem.Collections.Generic; usingSystem.Linq; usingSystem.Text; usingSystem.Threading.Tasks; namespaceConsoleApplication1 { class Program { static void Main(string[]
交错数组：数组元素本身也是一个数组 public static void Main(string[] args) { int[][] arr = new int[5][]; arr[0] = new int[8]; arr[1] = new int[8]; arr[2] = new int[8]; arr[3] = new int[8]; arr[4] = new int[8]; Random rdm = new Random(); for
废话不多说，直接上代码： using System;using System.Collections.Generic;using System.Text;using System.Threading; namespace ConsoleApplication2{ class Game { string[] str = new string[52]; int[] number = new int[52]; int i = 0; int[] a = ne
