[C#] Chapter 11. Array (test)

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace MyFirstCSharp_01
{
    public partial class Chap11_Array_test2 : Form
    {
        public Chap11_Array_test2()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //배열 생성
            int[,] iArray = new int[2, 4] { { 1, 2, 3, 4 },   // { 5, 6, 7, 8 }
                                            { 5, 6, 7, 8 } }; // { 1, 2, 3, 4 }

            // 행의 수 구하기
            int iArrayRowCount = iArray.GetLength(0);
            // 열의 수 구하기
            int iArrayColumnCount = iArray.GetLength(1);

            // 1. 자리가 바뀐 데이터가 담길 배열 변수 생성
            int[,] iResultArray = new int[iArrayRowCount, iArrayColumnCount];

            // 2. 원본 데이터 행 역행하여 복사 배열에 담기]
            int iArrayx = 0;
            for (int x = iArrayRowCount - 1; x >= 0; x--)
            {
                for (int y = 0; y < iArrayColumnCount; y++)
                {
                    // 행을 바꾸어 새로운 배열에 담기
                    iResultArray[iArrayx, y] = iArray[x, y];
                }
                ++iArrayx;
            }

            // 텍스트 박스에 담기
            string aArrayList = string.Empty;
            textBox1.Text = "---------- 2차원 배열 행 바꾸기 ----------\r\n";
            int iColumnCount = 0;
            foreach(int iResult in iResultArray)
            {
                aArrayList += $"{iResult},";
                if (++iColumnCount == iArrayColumnCount)
                {
                    aArrayList = $"{{ {aArrayList} }} \r\n";
                    textBox1.Text += aArrayList;
                    aArrayList = "";
                    iColumnCount = 0;
                }
            }
        }
    }
}

 

my code

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace MyFirstCSharp_01
{
    public partial class Chap11_Array_test : Form
    {
        public Chap11_Array_test()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            textBox1.Text = "";
            int[,] aArray = new int[2, 4] { { 1, 2, 3, 4 }, { 5, 6, 7, 8 } };
            int iArrayRowCount = aArray.GetLength(0); //행
            int iArrayColumnCount = aArray.GetLength(1); //열
            
            string sArrayList = string.Empty;

            for (int x = (iArrayRowCount - 1); x >= 0; x--)
            {
                for (int y = 0; y < iArrayColumnCount; y++)
                {
                    sArrayList += $"{aArray[x, y]}, ";
                    
                }
                textBox1.Text += sArrayList + "\r\n";
                sArrayList = "";
            }


        }

        private void button2_Click(object sender, EventArgs e)
        {
            textBox1.Text = "";
            int[,] aArray = new int[2, 4] { { 1, 2, 3, 4 }, { 5, 6, 7, 8 } };
            int iArrayRowCount = aArray.GetLength(0); //행
            int iArrayColumnCount = aArray.GetLength(1); //열
            string sArrayList = string.Empty;

            for (int x = 0; x < iArrayRowCount; x++)
            {
                for (int y = 0; y < iArrayColumnCount; y++)
                {
                    sArrayList += $"{aArray[x, y]}, ";

                }
                textBox1.Text += sArrayList + "\r\n";
                sArrayList = "";
            }
        }

        private void label1_Click(object sender, EventArgs e)
        {

        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {

        }
    }
}