Timer
timer: 在指定的時間間隔內做一件指定的事
Interval：1000毫秒=1秒
timer1.Enabled = true;
程式碼
取得文件裡的每一個文件的完整路徑Directory.GetFiles()
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private void Form1_Load(object sender, EventArgs e)
{
//播放音樂
SoundPlayer sp = new SoundPlayer();
sp.SoundLocation = @"C:\Users\rivalin\Desktop\hi.wav";
sp.Play();
pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
pictureBox2.SizeMode = PictureBoxSizeMode.StretchImage;
pictureBox3.SizeMode = PictureBoxSizeMode.StretchImage;
pictureBox4.SizeMode = PictureBoxSizeMode.StretchImage;
pictureBox5.SizeMode = PictureBoxSizeMode.StretchImage;
pictureBox6.SizeMode = PictureBoxSizeMode.StretchImage;
//視窗載入時，給每一個pictureBox賦值圖片路徑
pictureBox1.Image = Image.FromFile(@"C:\Users\rivalin\Desktop\images\1.jpg");
pictureBox2.Image = Image.FromFile(@"C:\Users\rivalin\Desktop\images\1.jpg");
pictureBox3.Image = Image.FromFile(@"C:\Users\rivalin\Desktop\images\1.jpg");
pictureBox4.Image = Image.FromFile(@"C:\Users\rivalin\Desktop\images\1.jpg");
pictureBox5.Image = Image.FromFile(@"C:\Users\rivalin\Desktop\images\1.jpg");
pictureBox6.Image = Image.FromFile(@"C:\Users\rivalin\Desktop\images\1.jpg");
}
//取得文件裡的每一個文件的完整路徑
string[] path = Directory.GetFiles(@"C:\Users\rivalin\Desktop\images\");
int i = 0; //記錄path的index
Random r = new Random();//建立產生隨機數物件
private void timer1_Tick(object sender, EventArgs e)
{
//每一秒鐘 換一張圖片
i++;
if (i == path.Length) i = 0;
pictureBox1.Image = Image.FromFile(path[r.Next(0, path.Length)]);//(path[i]);
pictureBox2.Image = Image.FromFile(path[r.Next(0, path.Length)]);
pictureBox3.Image = Image.FromFile(path[r.Next(0, path.Length)]);
pictureBox4.Image = Image.FromFile(path[r.Next(0, path.Length)]);
pictureBox5.Image = Image.FromFile(path[r.Next(0, path.Length)]);
pictureBox6.Image = Image.FromFile(path[r.Next(0, path.Length)]);
}