vb编写net vb编写程序输出菱形
如何编写VB.NET 接口程序
可以的,把项目的类型设成类库,将所有的函数用Public修饰附封装在类里面,生成dll文件。这样别人就可以在别人项目属性的引用页里面添加对你的dll文件的引用,然后导入命名空间,直接使用了。
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比如说,在一个项目里:
NameSpace Controller
Public Class ControlMachine
Public Sub Boot()
End Sub
Public Sub Shutdown()
End Sub
End Class
End NameSpace
进入另一个项目的项目属性,进入引用页,添加到那个dll文件的引用。在代码中:
Imports Controller '加在代码文档的最顶端
使用:
Dim controller As New ControlMachine
controller.Boot()
controller.Shutdown()
希望你能了解,不懂再追问
VB.NET编程语法
你这是vb.net的代码,vb中不允许那么写:
Dim
strdx()
As
String
=
{"0",
"0",
"0"}
'定义个数组,从后面的值能看的出最大下标是2,也就是strdx(0),strdx(1)和strdx(2),3个的默认值都为0
Dim
calcount1
As
String
=
"0"
'定义个字符串变量
Dim
calcount2
As
String
=
"0"
Dim
strvalue
As
Boolean
=
False
'定义strvalue为bool值,改类型变量只有true和false
2种值
If
strdx(0)
=
"0"
Then
TextBox1.Text
=
strdx(0)
"."
这是字符串连接符号,和"+"的区别是,他把左右2边的内容直接连接的,而"+"可能会编程运算符,例如
2
3
=
"23"
而
2
+
3
=
5
ElseIf
strvalue
=
False
Then
strdx(0)
=
strdx(0)
"0"
TextBox1.Text
=
strdx(0)
"."
strvalue
=
True
Else
strdx(0)
=
strdx(0)
"0"
TextBox1.Text
=
strdx(0)
Select
Case
calcount1
'
这里开始是分支语句
Case
"+"
TextBox1.Text
=
Str(Val(strdx(1))
+
Val(strdx(0)))
vb.net的编程
Option Strict Off
Option Explicit On
Friend Class Form1
Inherits System.Windows.Forms.Form
Private Sub Command1_Click(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles Command1.Click
Dim j As Integer
Dim A(9) As Short
Dim D(9) As Short
Dim i As Short
Dim B As Short
Dim C As Short
Dim F As Short
Dim G As Boolean
Dim H() As Short
Dim K As Short
Dim S As String
C = 32767
For i = 1 To 10
A(i - 1) = CShort(InputBox("输入第 " i "个数"))
If B A(i - 1) Then B = A(i - 1)
If C A(i - 1) Then C = A(i - 1)
D(i - 1) = Int(Rnd() * 100 + 0.5)
If F D(i - 1) Then F = D(i - 1)
Next i
For i = 2 To 100
For j = 2 To Int(System.Math.Sqrt(i) + 0.5)
'UPGRADE_WARNING: Couldn't resolve default property of object j. Click for more: 'ms-help://MS.VSExpressCC.v80/dv_commoner/local/redirect.htm?keyword="6A50421D-15FE-4896-8A1B-2EC21E9037B2"'
'UPGRADE_WARNING: Mod has a new behavior. Click for more: 'ms-help://MS.VSExpressCC.v80/dv_commoner/local/redirect.htm?keyword="9B7D5ADD-D8FE-4819-A36C-6DEDAF088CC7"'
If i Mod j 0 Then
G = True
Else
G = False
Exit For
End If
Next j
If G = True Then
ReDim Preserve H(K)
H(K) = i
K = K + 1
End If
Next i
S = "2;"
For i = 0 To K - 1
S = S H(i) ";"
Next i
MsgBox("最大数为:" B ";最小数为:" C)
MsgBox("最大的随机数为:" F)
MsgBox("1--100之间共有" K + 1 "个素数:" S)
End Sub
End Class
用VB.NET程序编写代码
Delphi代码如下:
procedure TForm1.Button1Click(Sender: TObject);
var
购物总价:Integer;
折扣:Extended;
begin
购物总价:=StrToInt(Edit1.Text);
if 购物总价250 then
begin
折扣:=0;
end
else if 购物总价500 then
begin
折扣:=0.05;
end
else if 购物总价1000 then
begin
折扣:=0.075;
end
else if 购物总价2000 then
begin
折扣:=0.1;
end
{
此段的折扣是多少?
else if 购物总价3000 then
begin
折扣:=0.05;
end
}
else if 购物总价=3000 then
begin
折扣:=0.15;
end;
ShowMessage('您享受的折扣是:'+FloatToStr(折扣)
+' 原价:'+IntToStr(购物总价)
+' 折后总价:'+FloatToStr(购物总价*(1-折扣)));
end;
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