剪刀石頭布

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 WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}


private void button1_Click(object sender, EventArgs e)
{
Random crandom = new Random();
int myrandom = crandom.Next();
int c = myrandom % 3 + 1;
textBox1.Text = "亂數"+ c.ToString();
if (c == 1)
{
button2.Visible = true;

}
if (c == 2)
{
button3.Visible = true;

}
if (c == 3)
{
button4.Visible = true;

}
}

時間碼表

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 WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        DateTime dtNext;
        public Form1()
        {
            InitializeComponent();
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            textBox1.Text = System.DateTime.Now.ToString();
            TimeSpan MySpan = dtNext.Subtract(DateTime.Now);

            string diffHour = Convert.ToString(MySpan.Hours);
            string diffMin = Convert.ToString(MySpan.Minutes);
            string diffSec = Convert.ToString(MySpan.Seconds);
            label1.Text = "還有" + diffHour + " 時 " + diffMin + " 分 " + diffSec + " 秒 ";
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            dtNext = DateTime.Now.AddHours(2);
            timer1.Start();
        }

        private void label1_Click(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            timer1.Enabled = false;
        }

        private void button2_Click(object sender, EventArgs e)
        {
            timer1.Enabled = true;
        }
    }
}