c# 抽獎小程式
阿新 • • 發佈：2019-05-24
1 const int N = 8;
2 Button button = new Button();
3 Image[] images = new Image[N];
4 PictureBox[] pictures = new PictureBox[N];
5 int[] dx = new int[N] { 112, 112, 0, 0, -113, -113, 0, 0 };
6 int[] dy = new int[N] { 0, 0, 113, 113, 0, 0, -112, -112 };
7 private void Form1_Load(object sender, EventArgs e)
8 {
9 InitialImage();
10 InitialSurface();//初始化窗體介面
11 }
12 //新增圖片
13 private void InitialImage()
14 {
15 images[0] = Resources.保溫杯;
16 images[1] = Resources.體重秤;
17 images[2] = Resources.x1;
18 images[3] = Resources.檯燈;
19 images[4] = Resources.耳機;
20 images[5] = Resources.x2;
21 images[6] = Resources.電動牙刷;
22 images[7] = Resources.時鐘;
23 this.BackgroundImage = Resources.formbg3;
24 }
25 //初始化介面
26 private void InitialSurface()
27 {
28 this.Size = new Size(537, 760);
29 Panel pa = new Panel();
30 pa.Size = new System.Drawing.Size(342, 348);
31 pa.BackgroundImage = Resources.bga1;
32 pa.BackgroundImageLayout = ImageLayout.Stretch;
33 pa.Location = new Point((int)(this.Width * 0.17), (int)(this.Height * 0.418));//90, 315);
34 pa.BackColor = Color.Transparent;
35 this.Controls.Add(pa);
36 int x = 11, y = 11;
37 for (int i = 0; i < N; i++)
38 {
39 x += dx[i];
40 y += dy[i];
41 PictureBox box = new PictureBox();
42 box.Size = new Size(95, 95);
43 box.Location = new Point(x, y);
44 box.Image = images[i];
45 box.SizeMode = PictureBoxSizeMode.StretchImage;
46 box.BorderStyle = BorderStyle.FixedSingle;
47 box.Padding = new Padding(4);
48 box.BackColor = Color.White;
49 pictures[i] = box;
50 pa.Controls.Add(box);
51 }
52 button.Text = "開始" + "\r\n" + "抽獎";
53 button.Font = new Font("宋體", 14, FontStyle.Bold);
54 button.Size = new Size(97, 97);
55 button.Location = new Point((int)(pa.Width * 0.36), (int)(pa.Height * 0.36));//123, 124);
56 button.Click += Button_Click;
57 pa.Controls.Add(button);
58
59 PictureBox box0 = new PictureBox();
60 box0.Location = new Point(0, 0);
61 box0.Image = Resources.抽獎;
62 box0.SizeMode = PictureBoxSizeMode.StretchImage;
63 box0.Size = new Size(this.Width, (int)(this.Height * 0.30));//220);
64 box0.BorderStyle = BorderStyle.None;
65 this.Controls.Add(box0);
66
67 PictureBox box1 = new PictureBox();
68 box1.Image = Resources.bgGIF;
69 box1.SizeMode = PictureBoxSizeMode.StretchImage;
70 box1.BorderStyle = BorderStyle.None;
71 box1.Size = new Size(395, 400);
72 box1.Location = new Point((int)(this.Width * 0.12), (int)(this.Height * 0.38));//64, 290);
73
74
75
76 Label probability = new Label();
77 probability.BackColor = Color.Transparent;
78 probability.Size = new System.Drawing.Size(500,20);
79 probability.Text = "獎品概率: 保溫杯7% 電動牙刷7% 體重秤4% 時鐘4% 檯燈3% 耳機3% ";
80 probability.Font = new System.Drawing.Font("宋體", 10, FontStyle.Regular);
81 probability.Location = new Point((int)(this.Width * 0.10), (int)(this.Height * 0.30));
82 this.Controls.Add(probability);
83 this.Controls.Add(box1);
84 this.MaximizeBox = false;
85 this.BackgroundImageLayout = ImageLayout.None;
86 this.AutoSizeMode = AutoSizeMode.GrowAndShrink;
87 }介面效果如下：
實現旋轉是使用的改變控制元件大小，背景顏色(把padding設定4可以看見背景顏色)。
1 Random random = new Random();
2 SoundPlayer sp = new SoundPlayer(Resources.Untitled_Project);
3 int circle;
4 int index;
5 int stopNum;
6 bool flag = true;//奇數和偶數的標誌，為true表示偶數
7 private void Button_Click(object sender, EventArgs e)
8 {
9 circle = random.Next(5, 8);//隨機產生旋轉的圈數
10 stopNum = random.Next(0, 8);//隨機確定選擇抽中獎品的下標
11 button.Enabled = false;
12 time.Interval = 10;
13 index = 0;
14 flag = true;
15 sp.Play();
16 time.Start();
17 }
18
19 private void time_Tick(object sender, EventArgs e)
20 {
21 if (flag)//放大picturebox，實現轉動效果
22 {
23 pictures[index].Size = new Size(103, 103);
24 pictures[index].BackColor = Color.YellowGreen;
25 flag = false;
26 }
27 else if (flag == false)//將原來的picturebox縮放回原來的尺寸
28 {
29 pictures[index].Size = new Size(95, 95);
30 pictures[index].BackColor = Color.White;
31 index++;
32 flag = true;
33 }
34 if (index == 8)
35 {
36 index = 0;
37 circle -= circle > 0 ? 1 : 0;//每次轉動8次，旋轉的圈數-1
38 }
39 //倒數兩圈慢
40 time.Interval = circle > 2 ? 10 : 100;
41 if (circle == 0 && index == stopNum)
42 {
43 pictures[index].Size = new Size(103, 103);
44 pictures[index].BackColor = Color.YellowGreen;
45 pictures[index].Location = new Point(pictures[index].Location.X - 4, pictures[index].Location.Y - 4);
46 StopRotate(index);
47 pictures[index].Size = new Size(95, 95);
48 pictures[index].BackColor = Color.White;
49 pictures[index].Location = new Point(pictures[index].Location.X + 4, pictures[index].Location.Y + 4);
50 }
51 }停止再加上一個簡單的概率會有點不了不流暢。
1 private void StopRotate(int sum)
2 {
3 string message = null;
4 switch (index)
5 {
6 case 0: if (random.Next(0, 2) == stopNum) message = "恭喜獲取保溫杯一個"; else { circle = 1; stopNum = 2; } break;//1/2 14 7%
7 case 1: if (random.Next(0, 3) == stopNum) message = "恭喜獲取體重秤一個"; else { circle = 1; stopNum = 5; } break;//1/3 21 4%
8 case 2: message = "謝謝惠顧"; break;
9 case 3: if (random.Next(3, 7) == stopNum) message = "恭喜獲取檯燈一個"; else { circle = 1; stopNum = 5; } break;//1/4 28 3%
10 case 4: if (random.Next(0, 5) == stopNum) message = "恭喜獲取耳機一個"; else { circle = 1; stopNum = 5; } break;//1/4 28 3%
11 case 5: message = "謝謝惠顧"; break;
12 case 6: if (random.Next(6, 8) == stopNum) message = "恭喜獲取電動牙刷一個"; else { circle = 1; stopNum = 2; } break;//1/2 1/14 7&
13 case 7: if (random.Next(7, 10) == stopNum) message = "恭喜獲取時鐘一個"; else { circle = 1; stopNum = 2; } break;//1/3 1/21 4%
14 }
15 if (message != null)
16 {
17 sp.Stop();
18 time.Stop();//先關閉定時器
19 MessageBox.Show(message);
20 this.button.Enabled = true;
21 }
22 }簡單的旋轉程式就完成