Winform中Timer应用+ 随机字母-

Form1.CS

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Security.Cryptography;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

namespace 阳阳

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

            textBox1.Focus();

        }

        private void textBox1_TextChanged(object sender, EventArgs e)

        {

            textBox1.Clear();

            int b = groupBox1.Controls.Count;



            var radom = new Random();

            int s = radom.Next(1, b);

}

        private void groupBox1_Enter(object sender, EventArgs e)

        {



        }

        private void textBox1_KeyPress(object sender, KeyPressEventArgs e)

        {



            string inputLetter = e.KeyChar.ToString();

            RandomLetter rl = new RandomLetter();

            int a =int.Parse(label9.Text);

            if (inputLetter==label8.Text)

            {

a = a + 1;

            }

            label9.Text = a.ToString();

        }

private void Form1_Load(object sender, EventArgs e)

{

}

        private void button1_Click(object sender, EventArgs e)

        {



            textBox1.Focus();

            timer1.Stop();

        }

        private void timer1_Tick(object sender, EventArgs e)

        {

           timer1.Enabled = true;

            timer1.Interval = 1000; //定时器时间间隔

            timer1.Start();

            int b = groupBox1.Controls.Count;

            for (int i = 0; i < b; i++)

            {

                groupBox1.Controls[i].Text = “”;

            }

            RandomLetter rl = new RandomLetter();



            var radom = new Random();

            int s = radom.Next(0, b);

            label8.Text = groupBox1.Controls[s].Text = rl.GetRandomLetter();



            textBox1.Focus();

         }

private void label2_Click(object sender, EventArgs e)

{

}

        private void button2_Click(object sender, EventArgs e)

        {

               timer1.Start();

            textBox1.Focus();

        }

}

}

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Program.cs.

using System;

using System.Collections.Generic;

using System.Diagnostics;

using System.Linq;

using System.Threading.Tasks;

using System.Windows.Forms;

namespace 阳阳

{

    class RandomLetter

    {

      public string GetRandomLetter()

        {

            Random ran = new Random();

            int r = ran.Next(0, 25);

            string[] letterRoom = { “a”, “b”, “c”, “d”, “e”, “f”, “g”, “h”, “i”, “j”, “k”, “l”, “m”, “n”, “o”, “p”, “q”, “r”, “s”, “t”, “u”, “v”, “w”, “x”, “y”, “z” };

            string randomLetter = letterRoom[r];

            return randomLetter;

        }

        public void TimerRun()

        {



        }

        public int sum(ref int a)

        {

            return a + 1;

        }

}

    static class Program

    {

        /// <summary>

        /// 应用程序的主入口点。

        /// </summary>

        [STAThread]

        static void Main()

        {

            Application.EnableVisualStyles();

            Application.SetCompatibleTextRenderingDefault(false);

            Application.Run(new Form1());

        }

    }

}

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打字小游戏界面设计