隨機點名程序方便好用

 

 

using System;
using System.Collections.Generic;
using System.IO;
using System.Windows.Forms;
using System.Drawing;

namespace Randoms
{
    public partial class Main : Form
    {
        FileStream fs = null;
        StreamReader sr = null;
        //StreamWriter sw = null;
        List<string> names = new List<string>();
        Random rd = new Random();
        int jg = 0;
        //string syspath = System.Environment.CommandLine;//當前程序路徑
        string syspath = System.Windows.Forms.Application.StartupPath;

        public Main()
        {
            InitializeComponent();

            //GetData();//獲取數據



        }

        private void GetData()
        {
            string Namesaddress = syspath + "\\Names.txt";
            try
            {

                fs = new FileStream(Namesaddress, FileMode.Open);

                sr = new StreamReader(fs);

                //string count=sr.ReadLine();

                //while (count!=null)
                //{
                //    name.Add(count.ToString());
                //}


                while (true)
                {
                    string s = sr.ReadLine();
                    if (s != null)
                        names.Add(s);
                    else
                        break;
                }

            }
            catch (Exception)
            {

                throw;
            }
            finally
            {
                sr.Close();
                fs.Close();
            }
        }

        /// <summary>
        /// 開始點名
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button1_Click(object sender, EventArgs e)
        {
            this.button2.Enabled = true;
            lab.ForeColor = Color.Black;
            if (names.Count == 0)
            {

                this.time.Enabled = false;
                lab.Text = "Please Reload At First";


            }
            else
            {
                this.time.Enabled = true;
            }

        }
        /// <summary>
        /// 計數器
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void time_Tick(object sender, EventArgs e)
        {

                int rf = names.Count;
                jg = rd.Next(0, rf);
                lab.Text = names[jg];



        }
        /// <summary>
        /// 停止
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button2_Click(object sender, EventArgs e)
        {

            if (names.Count == 0)
            {
                this.time.Enabled = false;
                lab.Text = "The End";
                //GetData();
            }
            else
            {
                lab.ForeColor = Color.Blue;
                this.time.Enabled = false;
                names.RemoveAt(jg);
            }


        }
        /// <summary>
        /// 加載所有人
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Main_Load(object sender, EventArgs e)
        {
            string Namesaddress = syspath + "\\Names.txt";
            if (System.IO.File.Exists(Namesaddress) )
            {
                GetData();
            }
            else
            {

                MessageBox.Show("查看Names.txt文件是否存在");
                Application.Exit();
            }
        }

        /// <summary>
        /// 從新加載
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button3_Click(object sender, EventArgs e)
        {
            lab.ForeColor = Color.Black;
            this.time.Enabled = false;
            lab.Text = "Load Complete";
            GetData();
            this.button2.Enabled = false;
        }
    }
}

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