private void ComputeButton_Click(object sender, EventArgs e)
{
int width = Convert.ToInt32(width_NumericUpDown.Value);
int height = Convert.ToInt32(height_NumericUpDown.Value);
RectangleLibrary.Rectangle rect = new RectangleLibrary.Rectangle()
{
Width = width, Height = height
};
RectangleOperation operation = new RectangleOperation();
operation.Target = rect;
int area = operation.ComputeArea();
resultLabel.Text = $"長方形的面積為 {area}";
}
private void button1_Click(object sender, EventArgs e)
{
int width = 0;
Int32.TryParse(numericUpDown1.Value.ToString(), out width);
var height = (int)numericUpDown2.Value;
RectangleLibrary.Rectangle rect = new RectangleLibrary.Rectangle()
{
Width = width, Height = height
};
RectangleOperation operation = new RectangleOperation();
operation.Target = rect;
int area = operation.ComputeArea();
label3.Text = area.ToString();
}
private void button1_Click(object sender, EventArgs e)
{
Shape[] shapes = new Shape[20];
Random random = new Random();
for (int i = 0; i < shapes.Length; i++)
{
if (random.Next(0, 5) == 0)
{
shapes[i] = new PointLibrary.Point();
}
else if (random.Next(0, 5) == 1)
{
shapes[i] = new Line();
}
else if (random.Next(0, 5) == 2)
{
shapes[i] = new RectangleLibrary.Rectangle();
}
else if (random.Next(0, 5) == 3)
{
shapes[i] = new Circle();
}
else if (random.Next(0, 5) == 4)
{
shapes[i] = new Ellipse();
}
}
for (int i = 0; i < shapes.Length; i++)
{
shapes[i].Draw(pictureBoxShapes.CreateGraphics());
}
}