C#基础学习之【5】数组的操作_c#怎么建立数组和字典-优快云博客

本文介绍并演示了如何在 C# 中使用一维数组和多维数组，包括不同类型的数组声明与初始化方式，以及如何通过 for 循环和 foreach 循环遍历数组。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

using System;

namespace ArrayDemo
{
	class MainClass
	{
		public static void Main (string[] args)
		{
			//first type
			int[] array1 = new int[5];
			array1 [0] = 1;
			array1 [1] = 9;
			array1 [2] = 4;
			array1 [3] = 6;
			array1 [4] = 8;

			for (int i = 0; i < 5; i++) 
			{
				Console.WriteLine (array1 [i]);
			}

			foreach (int n in array1) 
			{
				Console.WriteLine(n);
			}


			//second type
			int[] array2 = new int[] {1,2,3,4,5};
			for (int i = 0; i < 5; i++) 
			{
				Console.WriteLine (array2 [i]);
			}
			foreach (int n in array2) 
			{
				Console.WriteLine(n);
			}
			int[] array3 = {1,3,5,7,9,0};
			for (int i = 0; i < 5; i++) 
			{
				Console.WriteLine (array3 [i]);
			}

			foreach (int n in array3) 
			{
				Console.WriteLine(n);
			}
			int[,] multiDimensionalArray1 = new int[2, 3];
			multiDimensionalArray1 [0, 0] = 10;
			multiDimensionalArray1 [0, 1] = 11;
			multiDimensionalArray1 [0, 2] = 12;
			multiDimensionalArray1 [1, 0] = 20;
			multiDimensionalArray1 [1, 1] = 21;
			multiDimensionalArray1 [1, 2] = 22;

			for (int i = 0; i < 2; i++) 
			{
				for(int j = 0; j < 3; j++)
				{
					Console.WriteLine (multiDimensionalArray1 [i, j]);
				}
			}

			int[,] mutiDimensionalArray2 = {{1,2,3},{4,5,6}};
			for (int i = 0; i < 2; i++) 
			{
				for(int j = 0; j < 3; j++)
				{
					Console.WriteLine (mutiDimensionalArray2 [i, j]);
				}
			}

		}
	}
}