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public partial class Form1 : Form
{
private int[] Numbers;
public Form1()
{
InitializeComponent();
Numbers = new int[8] { 0, 1, 2, 3, 4, 5, 6, 7 };
}
private void Form1_Load(object sender, EventArgs e)
{
Application.ThreadException += this.Form1_ThreadException;
}
private void pictureBox1_Paint(object sender, PaintEventArgs e)
{
Graphics g = e.Graphics;
SolidBrush sb = new SolidBrush(Color.Black);
Font f = new Font("宋体", 20F, FontStyle.Bold);
g.DrawString(Numbers[trackBar1.Value].ToString(), f, sb, 5, 5);
}
private void trackBar1_ValueChanged(object sender, EventArgs e)
{
pictureBox1.Invalidate(true);
}
private void Form1_ThreadException(object sender, ThreadExceptionEventArgs e)
{
MessageBox.Show(e.Exception.Source + "\n" + e.Exception.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}