c# *双色球号码生成器

2021-10-08 01:16:13

图片：

完整代码下载：点此下载

一：通过操作GDI+的不合理的解决方案
数字在不断变换的时候重绘基本上都会让程序当掉
或许是我的程序没写好，希望达人指教

Code
using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace lottery
{
public partial class Form1 : Form
    {
private int[] arr = new int[7];
private Font font = new Font("Arial Black", 36);
private Brush brush;
private RectangleF rec = new RectangleF(0, 13, 100, 100);
private StringFormat sf = new StringFormat();
private Control[] controls;       
private bool flag = true;
public Form1()
        {
            InitializeComponent();            
        }
private void Form1_Load(object sender, EventArgs e)
        {
            controls = new Control[] { num1, num2, num3, num4, num5, num6,num7 };
for (int i = 0; i < 7; i++)
            {
                controls[i].Paint+=new PaintEventHandler(num_Paint);
            }
            sf.Alignment = StringAlignment.Center;
        }
private void button1_Click(object sender, EventArgs e)
        {
if (button1.Text == "stop")
            {
                flag = false;
            }
if (button1.Text == "start") 
            {
                button1.Text = "stop";
while (flag)
                {
                    start();
                }
            }            
        }
/// <summary>
/// 开始
/// </summary>
        private void start()
        {
            MakeNums();
for (int i = 0; i < 7; i++)
            {
if (i == 6)
                {
                    brush = new SolidBrush(Color.Blue);
                }
else
                {
                    brush = new SolidBrush(Color.Red);
                }
                Graphics draw = Graphics.FromHwnd(controls[i].Handle);
                draw.Clear(Color.Black);
                draw.DrawString(arr[i].ToString(), font, brush, rec, sf);
                draw.Dispose();
            }
        }
/// <summary>
/// 制造号码
/// </summary>
        private void MakeNums()
        {
            Random rand = new Random();
            Hashtable ht = new Hashtable();            
//产生不重复的随机数
            int key = 0;
while (ht.Count <= 6)
            {
int val = rand.Next(1, 33);
if (!ht.ContainsValue(val))
                { ht.Add(key, val); key++; }
            }
//得到随机数
            for (int i = 0; i < 6; i++)
            {
                arr[i] = (int)ht[i];
            }
//冒泡排序
            int temp;
for (int outer = 5; outer >= 0; outer--)
            {
for (int inner = 0; inner <= outer - 1; inner++)
                {
if (arr[inner] > arr[inner + 1])
                    {
                        temp = arr[inner];
                        arr[inner] = arr[inner + 1];
                        arr[inner + 1] = temp;
                    }
                }
            }
//制造蓝色球
            arr[6] = rand.Next(1, 16);
        }
/// <summary>
/// 重绘事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
        private void num_Paint(object sender, PaintEventArgs e)
        {
if (arr == null) { return; }
            PictureBox pb = (PictureBox)sender;
int num = Convert.ToInt32(pb.Name.Replace("num", ""))-1;
            Graphics draw = e.Graphics;
            draw.Clear(Color.Black);
if (num == 6)
            {
                brush = new SolidBrush(Color.Blue);
            }
else
            {
                brush = new SolidBrush(Color.Red);
            }
            draw.DrawString(arr[num].ToString(), font, brush, rec, sf);
        }
    }
}

二：通过Invoke方法把控件实例传入到程序中操作的更合理的方法

Code
using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Threading;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace lottery
{
public partial class Form1 : Form
    {
private bool flag = true;
delegate void SetTextDelegate(Label label,string text);
private Label[] labels;
private Font font;
public Form1()
        {
            InitializeComponent();            
        }
/// <summary>
/// 制造号码
/// </summary>
        private int[]  MakeNums()
        {
int[] arr = new int[7];
            Random rand = new Random();
            Hashtable ht = new Hashtable();            
//产生不重复的随机数
            int key = 0;
while (ht.Count <= 6)
            {
int val = rand.Next(1, 33);
if (!ht.ContainsValue(val))
                { ht.Add(key, val); key++; }
            }
//得到随机数
            for (int i = 0; i < 6; i++)
            {
                arr[i] = (int)ht[i];
            }
//冒泡排序
            int temp;
for (int outer = 5; outer >= 0; outer--)
            {
for (int inner = 0; inner <= outer - 1; inner++)
                {
if (arr[inner] > arr[inner + 1])
                    {
                        temp = arr[inner];
                        arr[inner] = arr[inner + 1];
                        arr[inner + 1] = temp;
                    }
                }
            }
//制造蓝色球
            arr[6] = rand.Next(1, 16);
return arr;
        }

private void button1_Click(object sender, EventArgs e)
        {
if (button1.Text == "start")
            {
                flag = true;
                button1.Text = "stop";
                ThreadStart TStart = new ThreadStart(Start);
                Thread thread = new Thread(TStart);
                thread.Start();
            }
else
            {
                flag = false;
                button1.Text = "start";
            }
        }
private void Start()
        {
while (flag)
            { PrintNum(); Thread.Sleep(88); }           
        }
private void PrintNum()
        {
int[] arr = MakeNums();
for (int i = 0; i < 7; i++)
            {
                SetTextDelegate mydelegate = new SetTextDelegate(SetText);
try { Invoke(mydelegate, labels[i], arr[i].ToString()); }
catch { return; }
            }
        }
private void SetText(Label label, string text)
        {            
            label.Text = text;
            label.TextAlign = ContentAlignment.MiddleCenter;
            label.Font = font;
if (label.Name == "label7")
            { label.ForeColor = Color.Blue; }
else
            { label.ForeColor = Color.Red; }
        }

private void Form1_Load(object sender, EventArgs e)
        {
            labels = new Label[] { label1, label2, label3, label4, label5, label6, label7 };
            font = new Font("Arial Black",36);
        }

    }
}

三：用到了timer控件和list的sort方法的第三种解决方案

Code

四：通过程序创建窗体的更简单的代码

Code

程序编写过程中得到了杭州的wisdomqq 上海的aha 的帮助感激中...

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