vb编写net vb编写100至999的水仙花数
vb.net的编程
Option Strict Off
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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;
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)))
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。
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
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