用VB来编程一个简易的计算机
Private Sub Command1_Click()
Select Case Text3.Text
Case "+"
Text4.Text = Val(Text1.Text) + Val(Text2.Text)
Case "-"
Text4.Text = Val(Text1.Text) - Val(Text2.Text)
Case "*"
Text4.Text = Val(Text1.Text) * Val(Text2.Text)
Case "/"
Text4.Text = Val(Text1.Text) / Val(Text2.Text)
End Select
End Sub
Private Sub Command2_Click()
Text1.Text = ""
Text2.Text = ""
Text3.Text = ""
Text4.Text = ""
End Sub
Private Sub Text4_Change()
End Sub
:按[vb语言编写一个简易计算器]短语搜索一下,网站有现成例子.动一下手!
后面发了两个文件的内容，你创建两个文本文件按照那两个文件命名后，并把对应代码用记事本打开粘贴到里面，最好再用vb运行project1.vbp文件编译成exe文件或直接执行都可以。给你写了一个代码十分简单的计算器，真正手写代码就这么多。
Dim mem1 As Long, mem2 As Long, mem3 As Long
Dim calc As Integer
Private Sub Command1_Click(Index As Integer)
Text1.Text = Text1.Text & Index
End Sub
Private Sub Command2_Click(Index As Integer)
calc = Index
mem1 = Text1.Text: Text1.Text = ""
End Sub
Private Sub Command3_Click(Index As Integer)
Select Case Index
Case 0
Text1.Text = ""
mem1 = 0: mem2 = 0: mem3 = 0
Case 1
Text1.Text = Text1.Text & "."
Case 2
mem2 = Text1.Text: Text1.Text = ""
Select Case calc
Case 0 '+
mem3 = mem1 + mem2
Case 1 '-
mem3 = mem1 - mem2
Case 2 '*
mem3 = mem1 * mem2
Case 3 '/
mem3 = mem1 / mem2
End Select
Text1.Text = mem3
End Select
End Sub
以下是计算器完整代码文件内容-----------------------------------
因为百度知道不能上传压缩，只好把工程文件的文本代码发给你了。
以下是文件Project1.vbp的内容
Type=Exe
Form=Form1.frm
Reference=*\G{00020430-0000-0000-C000-000000000046}#2.0#0#C:\WINDOWS\system32\STDOLE2.TLB#OLE Automation
Startup="Form1"
Command32=""
Name="Project1"
HelpContextID="0"
CompatibleMode="0"
MajorVer=1
MinorVer=0
RevisionVer=0
AutoIncrementVer=0
ServerSupportFiles=0
VersionCompanyName="BaterStudio"
CompilationType=0
OptimizationType=0
FavorPentiumPro(tm)=0
CodeViewDebugInfo=0
NoAliasing=0
BoundsCheck=0
OverflowCheck=0
FlPointCheck=0
FDIVCheck=0
UnroundedFP=0
StartMode=0
Unattended=0
Retained=0
ThreadPerObject=0
MaxNumberOfThreads=1
[MS Transaction Server]
AutoRefresh=1
以下是文件Form1.frm里包括按钮信息的文件内容
VERSION 5.00
Begin VB.Form Form1
Caption = "Form1"
ClientHeight = 5835
ClientLeft = 60
ClientTop = 345
ClientWidth = 4380
LinkTopic = "Form1"
ScaleHeight = 5835
ScaleWidth = 4380
StartUpPosition = 3 'Windows Default
Begin VB.CommandButton Command3
Caption = "="
Height = 615
Index = 2
Left = 1920
TabIndex = 17
Top = 4440
Width = 615
End
Begin VB.CommandButton Command3
Caption = "."
Height = 615
Index = 1
Left = 1200
TabIndex = 16
Top = 4440
Width = 615
End
Begin VB.CommandButton Command3
Caption = "C"
Height = 615
Index = 0
Left = 480
TabIndex = 15
Top = 4440
Width = 615
End
Begin VB.CommandButton Command2
Caption = "÷"
Height = 615
Index = 3
Left = 3360
TabIndex = 14
Top = 3120
Width = 615
End
Begin VB.CommandButton Command2
Caption = "×"
Height = 615
Index = 2
Left = 3360
TabIndex = 13
Top = 2400
Width = 615
End
Begin VB.CommandButton Command2
Caption = "-"
Height = 615
Index = 1
Left = 3360
TabIndex = 12
Top = 1680
Width = 615
End
Begin VB.CommandButton Command2
Caption = "+"
Height = 615
Index = 0
Left = 3360
TabIndex = 11
Top = 960
Width = 615
End
Begin VB.CommandButton Command1
Caption = "9"
Height = 615
Index = 9
Left = 1920
TabIndex = 10
Top = 960
Width = 615
End
Begin VB.CommandButton Command1
Caption = "8"
Height = 615
Index = 8
Left = 1200
TabIndex = 9
Top = 960
Width = 615
End
Begin VB.CommandButton Command1
Caption = "7"
Height = 615
Index = 7
Left = 480
TabIndex = 8
Top = 960
Width = 615
End
Begin VB.CommandButton Command1
Caption = "6"
Height = 615
Index = 6
Left = 1920
TabIndex = 7
Top = 1680
Width = 615
End
Begin VB.CommandButton Command1
Caption = "5"
Height = 615
Index = 5
Left = 1200
TabIndex = 6
Top = 1680
Width = 615
End
Begin VB.CommandButton Command1
Caption = "4"
Height = 615
Index = 4
Left = 480
TabIndex = 5
Top = 1680
Width = 615
End
Begin VB.CommandButton Command1
Caption = "3"
Height = 615
Index = 3
Left = 1920
TabIndex = 4
Top = 2400
Width = 615
End
Begin VB.CommandButton Command1
Caption = "2"
Height = 615
Index = 2
Left = 1200
TabIndex = 3
Top = 2400
Width = 615
End
Begin VB.CommandButton Command1
Caption = "1"
Height = 615
Index = 1
Left = 480
TabIndex = 2
Top = 2400
Width = 615
End
Begin VB.CommandButton Command1
Caption = "0"
Height = 615
Index = 0
Left = 480
TabIndex = 1
Top = 3120
Width = 615
End
Begin VB.TextBox Text1
Height = 285
Left = 480
TabIndex = 0
Top = 240
Width = 3495
End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim mem1 As Long, mem2 As Long, mem3 As Long
Dim calc As Integer
Private Sub Command1_Click(Index As Integer)
Text1.Text = Text1.Text & Index
End Sub
Private Sub Command2_Click(Index As Integer)
calc = Index
mem1 = Text1.Text: Text1.Text = ""
End Sub
Private Sub Command3_Click(Index As Integer)
Select Case Index
Case 0
Text1.Text = ""
mem1 = 0: mem2 = 0: mem3 = 0
Case 1
Text1.Text = Text1.Text & "."
Case 2
mem2 = Text1.Text: Text1.Text = ""
Select Case calc
Case 0 '+
mem3 = mem1 + mem2
Case 1 '-
mem3 = mem1 - mem2
Case 2 '*
mem3 = mem1 * mem2
Case 3 '/
mem3 = mem1 / mem2
End Select
Text1.Text = mem3
End Select
End Sub
发你QQ邮箱了，看收到没
都是自己做的，分不分的无所谓
这个很简单，初学者都会
你先试着做，碰到具体问题了再来发问。。
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