【程式設計-C#】九九乘法表

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 九九乘法表
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            string output = ""; //用來儲存要輸出的資料
            for (int i = 1; i <= 9; i++)
            {
                for (int j = 1; j <= 9; j++)
                {
                    output += "" + i + "*" + j + "=" + (i * j).ToString().PadLeft(2, ' ') + " ";
                }
                output += "rn"; //每印完一列，進行跳行(r:return, n:new line)
            }
            label1.Text = output; //將output內容輸出到label1上
        }
    }
}