大橙子网站建设,新征程启航
为企业提供网站建设、域名注册、服务器等服务
VB.net与VB不同。
成都创新互联公司自成立以来,一直致力于为企业提供从网站策划、网站设计、成都做网站、网站建设、外贸营销网站建设、电子商务、网站推广、网站优化到为企业提供个性化软件开发等基于互联网的全面整合营销服务。公司拥有丰富的网站建设和互联网应用系统开发管理经验、成熟的应用系统解决方案、优秀的网站开发工程师团队及专业的网站设计师团队。
VB.net已经有专门绘图的类。
可以定义笔刷然后用Drawing类中的方法绘制。
Private Sub DrawEllipse()
Dim myPen As New System.Drawing.Pen(System.Drawing.Color.Red)
Dim formGraphics as System.Drawing.Graphics
formGraphics = Me.CreateGraphics()
formGraphics.DrawEllipse(myPen, New Rectangle(0,0,200,300))
myPen.Dispose()
formGraphics.Dispose()
End Sub
Private Sub DrawRectangle()
Dim myPen As New System.Drawing.Pen(System.Drawing.Color.Red)
Dim formGraphics as System.Drawing.Graphics
formGraphics = Me.CreateGraphics()
formGraphics.DrawRectangle(myPen, New Rectangle(0,0,200,300))
myPen.Dispose()
formGraphics.Dispose()
End Sub
#include void main() { float a, b, h; // 梯形的上底、下底和高 printf("请依次输入梯形的上底、下底和高:"); scanf("%f%f%f", a, b,h); printf("梯形的面积:%f", (a+b)*h/2); }
's=(上底+下底)×高÷2
private
sub
form_load()
me.show
a
=
val(inputbox("请输入梯形上底"))
b
=
val(inputbox("请输入梯形下底"))
h
=
val(inputbox("请输入梯形的高"))
"梯形上底=";
a
"梯形下底=";
b
"梯形高=";
h
"梯形面积=";
(a
+
b)
*
h
/
2
end
sub
Private Sub Command1_Click() '等腰三角形
Dim i As Integer, n As Integer
n = 5
For i = 1 To n
Print Space(n - i); String(2 * i - 1, "*")
Next
End Sub
Private Sub Command2_Click() '正方形
Dim i As Integer, n As Integer
n = 5
For i = 1 To n
For j = 1 To n
Print "* ";
Next
Next
End Sub
Private Sub Command3_Click() '等腰梯形
Dim i As Integer, n As Integer, m As Integer
n = 5
m = 5
For i = 1 To n
Print Space(n - i); String(2 * i - 1 + m, "*")
Next
End Sub
g = Me.picDisplay.CreateGraphics
Dim mybrush As Brush = New SolidBrush(Map_Empty_Color)
Dim rect2 As System.Drawing.Rectangle = New System.Drawing.Rectangle(0, 0, Map_Width, Map_Height)
g.FillRectangle(mybrush, rect2)