c#自制抽奖小程序
#region 第一部分界面设计 const int N = 8; Button button = new Button(); Image[] images = new Image[N]; PictureBox[] pictures = new PictureBox[N]; int[] dx = new int[N] { 112, 112, 0, 0, -113, -113, 0, 0 }; int[] dy = new int[N] { 0, 0, 113, 113, 0, 0, -112, -112 }; private void Form1_Load(object sender, EventArgs e) { InitialImage(); InitialSurface();//初始化窗体界面 } //添加图片 private void InitialImage() { images[0] = Resources.保温杯; images[1] = Resources.体重秤; images[2] = Resources.x1; images[3] = Resources.台灯; images[4] = Resources.耳机; images[5] = Resources.x2; images[6] = Resources.电动牙刷; images[7] = Resources.时钟; this.BackgroundImage = Resources.formbg; } //初始化界面 private void InitialSurface() { Panel pa = new Panel(); pa.Size = new System.Drawing.Size(342, 348); pa.BackgroundImage = Resources.bga1; pa.BackgroundImageLayout = ImageLayout.Stretch; pa.Location = new Point(91, 316); pa.BackColor = Color.Transparent; pa.TabIndex = 0; this.Controls.Add(pa); int x = 11, y = 11; for (int i = 0; i < N; i++) { x += dx[i]; y += dy[i]; PictureBox box = new PictureBox(); box.Size = new Size(95, 95); box.Location = new Point(x, y); box.Image = images[i]; box.SizeMode = PictureBoxSizeMode.StretchImage; box.BorderStyle = BorderStyle.FixedSingle; box.Padding = new Padding(4); box.BackColor = Color.White; pictures[i] = box; pa.Controls.Add(box); } button.Text = "开始" + "\r\n" + "抽奖"; button.Font = new Font("宋体", 14, FontStyle.Bold); button.Size = new Size(97, 97); button.Location = new Point(123, 124); button.Click += Button_Click; pa.Controls.Add(button); PictureBox box1 = new PictureBox(); box1.Image = Resources.bgGIF; box1.SizeMode = PictureBoxSizeMode.StretchImage; box1.BorderStyle = BorderStyle.None; box1.Size = new Size(395, 400); box1.Location = new Point(64, 290); this.Controls.Add(box1); this.MaximizeBox = false; this.BackgroundImageLayout = ImageLayout.Stretch; this.AutoSizeMode = AutoSizeMode.GrowAndShrink; } #endregion
界面效果如下：
实现旋转是使用的改变控件大小，背景颜色(把padding设置4可以看见背景颜色)。
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;//奇数和偶数的标志，为true表示偶数 7 private void Button_Click(object sender, EventArgs e) 8 { 9 circle = random.Next(5, 8);//随机产生旋转的圈数 10 stopNum = random.Next(0, 8);//随机确定选择抽中奖品的下标 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，实现转动效果 22 { 23 pictures[index].Size = new Size(103, 103); 24 pictures[index].BackColor = Color.YellowGreen; 25 flag = false; 26 } 27 else if (flag == false)//将原来的picturebox缩放回原来的尺寸 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;//每次转动8次，旋转的圈数-1 38 } 39 //倒数两圈慢 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 }
停止再加上一个简单的概率会有点不了不流畅。
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 = "恭喜获取保温杯一个"; else { circle = 1; stopNum = 2; } break;//1/2 14 7% 7 case 1: if (random.Next(0, 3) == stopNum) message = "恭喜获取体重秤一个"; else { circle = 1; stopNum = 5; } break;//1/3 21 4% 8 case 2: message = "谢谢惠顾"; break; 9 case 3: if (random.Next(3, 7) == stopNum) message = "恭喜获取台灯一个"; else { circle = 1; stopNum = 5; } break;//1/4 28 3% 10 case 4: if (random.Next(0, 5) == stopNum) message = "恭喜获取耳机一个"; else { circle = 1; stopNum = 5; } break;//1/4 28 3% 11 case 5: message = "谢谢惠顾"; break; 12 case 6: if (random.Next(6, 8) == stopNum) message = "恭喜获取电动牙刷一个"; else { circle = 1; stopNum = 2; } break;//1/2 1/14 7& 13 case 7: if (random.Next(7, 10) == stopNum) message = "恭喜获取时钟一个"; else { circle = 1; stopNum = 2; } break;//1/3 1/21 4% 14 } 15 if (message != null) 16 { 17 sp.Stop(); 18 time.Stop();//先关闭定时器 19 MessageBox.Show(message); 20 this.button.Enabled = true; 21 } 22 }
简单的旋转程序就完成了。