小编use*_*866的帖子

Private Sub PictureBox1_Paint(ByVal sender As System.Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles PictureBox1.Paint
    e.Graphics.DrawEllipse(Pens.AliceBlue, New Rectangle(New Point(0, 0), New Size(PictureBox1.Width, PictureBox1.Height)))


End Sub

我试图在VB.Net,.Net版本4中绘制一个圆圈.在paintbox中没有显示任何内容.

我的代码给了我错误"无法在int和T之间隐式转换"

public class Vector3D<T>
{
    public T x; 
    public T y; 
    public T z;
    Vector3D()
    {
        x = 0;
        y = 0;
        z = 0;
    }
}