vb课程设计计算器

㈠ vb程序设计 计算器

我现在把诅咒收回。
你的手在桌上跳舞，一个早被忘掉的浮冰的舞姿
阿里斯多孟尼斯，孟内劳的儿子，
没有黑色的燕子带来渴望，
内燃驱动
他们无在乎的的恨。哈哈

㈡ 用VB设计个计算器

到http://iask.sina.com.cn/b/2103274.html网址下载
请参考http://www.vcfan.com上下载的原代码压缩文件内。
附件：容culator.zip

㈢ vb课程设计小型计算器

计算器设计比较简单，网上有教程，这个貌似是以前vb考试题库的一道题，5分钟之内就能做好。

㈣ 急求一个VB课程设计计算器的完整代码，最好有个人做好了给我，万分感谢

什么叫做“课程设计计算器”？

㈤ vb课程设计 表达式计算器的

已发送，注意接收.
现做现卖，LZ自己完善

㈥ 谁会做VB课程设计关于做计算器的急啊！谢谢啦！

完全版的前后台代码...

'请把下面的保存为 form1.frm

VERSION 5.00
Begin VB.Form Calculator
BorderStyle = 1 'Fixed Single
Caption = "计算器"
ClientHeight = 2970
ClientLeft = 2580
ClientTop = 1485
ClientWidth = 3270
ClipControls = 0 'False
BeginProperty Font
Name = "System"
Size = 9.75
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Icon = "CALC.frx":0000
LinkMode = 1 'Source
LinkTopic = "Form1"
MaxButton = 0 'False
PaletteMode = 1 'UseZOrder
ScaleHeight = 2970
ScaleWidth = 3270
WhatsThisHelp = -1 'True
Begin VB.CommandButton Number
Caption = "7"
Height = 480
Index = 7
Left = 120
TabIndex = 7
Top = 600
Width = 480
End
Begin VB.CommandButton Number
Caption = "8"
Height = 480
Index = 8
Left = 720
TabIndex = 8
Top = 600
Width = 480
End
Begin VB.CommandButton Number
Caption = "9"
Height = 480
Index = 9
Left = 1320
TabIndex = 9
Top = 600
Width = 480
End
Begin VB.CommandButton Cancel
Caption = "C"
Height = 480
Left = 2040
TabIndex = 10
Top = 600
Width = 480
End
Begin VB.CommandButton CancelEntry
Caption = "CE"
Height = 480
Left = 2640
TabIndex = 11
Top = 600
Width = 480
End
Begin VB.CommandButton Number
Caption = "4"
Height = 480
Index = 4
Left = 120
TabIndex = 4
Top = 1200
Width = 480
End
Begin VB.CommandButton Number
Caption = "5"
Height = 480
Index = 5
Left = 720
TabIndex = 5
Top = 1200
Width = 480
End
Begin VB.CommandButton Number
Caption = "6"
Height = 480
Index = 6
Left = 1320
TabIndex = 6
Top = 1200
Width = 480
End
Begin VB.CommandButton Operator
Caption = "+"
Height = 480
Index = 1
Left = 2040
TabIndex = 12
Top = 1200
Width = 480
End
Begin VB.CommandButton Operator
Caption = "-"
Height = 480
Index = 3
Left = 2640
TabIndex = 13
Top = 1200
Width = 480
End
Begin VB.CommandButton Number
Caption = "1"
Height = 480
Index = 1
Left = 120
TabIndex = 1
Top = 1800
Width = 480
End
Begin VB.CommandButton Number
Caption = "2"
Height = 480
Index = 2
Left = 720
TabIndex = 2
Top = 1800
Width = 480
End
Begin VB.CommandButton Number
Caption = "3"
Height = 480
Index = 3
Left = 1320
TabIndex = 3
Top = 1800
Width = 480
End
Begin VB.CommandButton Operator
Caption = "X"
Height = 480
Index = 2
Left = 2040
TabIndex = 14
Top = 1800
Width = 480
End
Begin VB.CommandButton Operator
Caption = "/"
Height = 480
Index = 0
Left = 2640
TabIndex = 15
Top = 1800
Width = 480
End
Begin VB.CommandButton Number
Caption = "0"
Height = 480
Index = 0
Left = 120
TabIndex = 0
Top = 2400
Width = 1080
End
Begin VB.CommandButton Decimal
Caption = "."
Height = 480
Left = 1320
TabIndex = 18
Top = 2400
Width = 480
End
Begin VB.CommandButton Operator
Caption = "="
Height = 480
Index = 4
Left = 2040
TabIndex = 16
Top = 2400
Width = 480
End
Begin VB.CommandButton Percent
Caption = "%"
Height = 480
Left = 2640
TabIndex = 17
Top = 2400
Width = 480
End
Begin VB.Label Readout
Alignment = 1 'Right Justify
BackColor = &H0000FFFF&
BorderStyle = 1 'Fixed Single
Caption = "0."
BeginProperty Font
Name = "MS Sans Serif"
Size = 12
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H00000000&
Height = 375
Left = 120
TabIndex = 19
Top = 105
Width = 3000
End
End
Attribute VB_Name = "Calculator"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
' --------------------------------------------------------------------------
' 版权所有 (C) 1994 Microsoft Corporation
'
' 您可以免费以任何方式使用、修改、复制并分发您认为有用的
' 示例应用程序文件 (或任何修改过的版本)。Microsoft 对任何
' 示例应用程序文件不做任何保证，不负任何责任和义务。
' --------------------------------------------------------------------------
Option Explicit
Dim Op1, Op2 ' 前面输入的操作数
Dim DecimalFlag As Integer ' 小数点仍然存在吗？
Dim NumOps As Integer ' 操作数个数
Dim LastInput ' 指示上一次按键事件的类型
Dim OpFlag ' 指示未完成的操作
Dim TempReadout

' C (取消) 按钮的 Click 事件过程
' 重新设置显示并初始化变量
Private Sub Cancel_Click()
Readout = Format(0, "0.")
Op1 = 0
Op2 = 0
Form_Load
End Sub

' CE (取消输入) 按钮的 Click 事件过程
Private Sub CancelEntry_Click()
Readout = Format(0, "0.")
DecimalFlag = False
LastInput = "CE"
End Sub

' 小数点 (.) 按钮的 Click 事件过程
' 如果上一次按键为运算符，初始化 readout 为 "0."；
' 否则显示时追加一个小数点
Private Sub Decimal_Click()
If LastInput = "NEG" Then
Readout = Format(0, "-0.")
ElseIf LastInput <> "NUMS" Then
Readout = Format(0, "0.")
End If
DecimalFlag = True
LastInput = "NUMS"
End Sub

' 窗体的初始化过程
' 设置所有变量为其初始值
Private Sub Form_Load()
DecimalFlag = False
NumOps = 0
LastInput = "NONE"
OpFlag = " "
Readout = Format(0, "0.")
'Decimal.Caption = Format(0, ".")
End Sub

' 数字键 (0-9) 的 Click 事件过程
' 向显示中的数追加新数
Private Sub Number_Click(Index As Integer)
If LastInput <> "NUMS" Then
Readout = Format(0, ".")
DecimalFlag = False
End If
If DecimalFlag Then
Readout = Readout + Number(Index).Caption
Else
Readout = Left(Readout, InStr(Readout, Format(0, ".")) - 1) + Number(Index).Caption + Format(0, ".")
End If
If LastInput = "NEG" Then Readout = "-" & Readout
LastInput = "NUMS"
End Sub

' 运算符 (+, -, x, /, =) 的 Click 事件过程
' 如果接下来的按键是数字键，增加 NumOps。
' 如果有一个操作数，则设置 Op1。
' 如果有两个操作数，则将 Op1 设置为 Op1 与
' 当前输入字符串的运算结果，并显示结果
Private Sub Operator_Click(Index As Integer)
TempReadout = Readout
If LastInput = "NUMS" Then
NumOps = NumOps + 1
End If
Select Case NumOps
Case 0
If Operator(Index).Caption = "-" And LastInput <> "NEG" Then
Readout = "-" & Readout
LastInput = "NEG"
End If
Case 1
Op1 = Readout
If Operator(Index).Caption = "-" And LastInput <> "NUMS" And OpFlag <> "=" Then
Readout = "-"
LastInput = "NEG"
End If
Case 2
Op2 = TempReadout
Select Case OpFlag
Case "+"
Op1 = CDbl(Op1) + CDbl(Op2)
Case "-"
Op1 = CDbl(Op1) - CDbl(Op2)
Case "X"
Op1 = CDbl(Op1) * CDbl(Op2)
Case "/"
If Op2 = 0 Then
MsgBox "除数不能为 0", 48, "计算器"
Else
Op1 = CDbl(Op1) / CDbl(Op2)
End If
Case "="
Op1 = CDbl(Op2)
Case "%"
Op1 = CDbl(Op1) * CDbl(Op2)
End Select
Readout = Op1
NumOps = 1
End Select
If LastInput <> "NEG" Then
LastInput = "OPS"
OpFlag = Operator(Index).Caption
End If
End Sub

' 百分比键 (%) 的 Click 事件过程
' 计算并显示第一个操作数的百分数
Private Sub Percent_Click()
Readout = Readout / 100
LastInput = "Ops"
OpFlag = "%"
NumOps = NumOps + 1
DecimalFlag = True
End Sub

㈦ vb课程设计类似windows计算器

'------------------------------------------------------------------------
'版权所有(C)1994MicrosoftCorporation
'
'您可以免费以任何方式使用、修改、复制并分发您认为有用的
'示例应用程序文件(或任何修改过的版本)。Microsoft对任何
'示例应用程序文件不做任何保证，不负任何责任和义务。
'------------------------------------------------------------------------
OptionExplicit
DimOp1,Op2'预先输入操作数。
DimDecimalFlagAsInteger'小数点存在吗？
DimNumOpsAsInteger'操作数个数。
DimLastInput'指示上一次按键事件的类型。
DimOpFlag'指示未完成的操作。
DimTempReadout

'C(取消)按钮的Click事件过程
'重新设置显示并初始化变量。
PrivateSubCancel_Click()
Readout=Format(0,"0.")
Op1=0
Op2=0
Form_Load
EndSub

'CE(取消输入)按钮的Click事件过程。
PrivateSubCancelEntry_Click()
Readout=Format(0,"0.")
DecimalFlag=False
LastInput="CE"
EndSub

'小数点(.)按钮的Click事件过程
'如果上一次按键为运算符，初始化readout为"0."；
'否则显示时追加一个小数点。
PrivateSubDecimal_Click()
IfLastInput="NEG"Then
Readout=Format(0,"-0.")
ElseIfLastInput<>"NUMS"Then
Readout=Format(0,"0.")
EndIf
DecimalFlag=True
LastInput="NUMS"
EndSub

'窗体的初始化过程
'设置所有变量为其初始值。
PrivateSubForm_Load()
DecimalFlag=False
NumOps=0
LastInput="NONE"
OpFlag=""
Readout=Format(0,"0.")
'Decimal.Caption=Format(0,".")
EndSub

'数字键(0-9)的Click事件过程
'向显示中的数追加新数。
PrivateSubNumber_Click(IndexAsInteger)
IfLastInput<>"NUMS"Then
Readout=Format(0,".")
DecimalFlag=False
EndIf
IfDecimalFlagThen
Readout=Readout+Number(Index).Caption
Else
Readout=Left(Readout,InStr(Readout,Format(0,"."))-1)+Number(Index).Caption+Format(0,".")
EndIf
IfLastInput="NEG"ThenReadout="-"&Readout
LastInput="NUMS"
EndSub

'运算符(+,-,x,/,=)的Click事件过程
'如果接下来的按键是数字键，增加NumOps。
'如果有一个操作数，则设置Op1。
'如果有两个操作数，则将Op1设置为Op1与
'当前输入字符串的运算结果，并显示结果。
PrivateSubOperator_Click(IndexAsInteger)
TempReadout=Readout
IfLastInput="NUMS"Then
NumOps=NumOps+1
EndIf
SelectCaseNumOps
Case0
IfOperator(Index).Caption="-"AndLastInput<>"NEG"Then
Readout="-"&Readout
LastInput="NEG"
EndIf
Case1
Op1=Readout
IfOperator(Index).Caption="-"AndLastInput<>"NUMS"AndOpFlag<>"="Then
Readout="-"
LastInput="NEG"
EndIf
Case2
Op2=TempReadout
SelectCaseOpFlag
Case"+"
Op1=CDbl(Op1)+CDbl(Op2)
Case"-"
Op1=CDbl(Op1)-CDbl(Op2)
Case"X"
Op1=CDbl(Op1)*CDbl(Op2)
Case"/"
IfOp2=0Then
MsgBox"除数不能为零",48,"计算器"
Else
Op1=CDbl(Op1)/CDbl(Op2)
EndIf
Case"="
Op1=CDbl(Op2)
Case"%"
Op1=CDbl(Op1)*CDbl(Op2)
EndSelect
Readout=Op1
NumOps=1
EndSelect
IfLastInput<>"NEG"Then
LastInput="OPS"
OpFlag=Operator(Index).Caption
EndIf
EndSub

'百分比键(%)的Click事件过程
'计算并显示第一个操作数的百分数。
PrivateSubPercent_Click()
Readout=Readout/100
LastInput="Ops"
OpFlag="%"
NumOps=NumOps+1
DecimalFlag=True
EndSub

㈧ Vb编写计算器和程序设计怎么整

Del、.、=、+、-、*、/的名字分别叫CommandDel、CommandC、CommandE、CommandA、CommandS、CommandM、CommandD

代码如下：
Dim xVal As Single
Dim xOp As String

Private Sub Command1_Click()
If Text1.Text = "" Then
Text1.Text = 1
Else
Text1.Text = Text1.Text & 1
End If
End Sub

Private Sub Command2_Click()
If Text1.Text = "" Then
Text1.Text = 2
Else
Text1.Text = Text1.Text & 2
End If
End Sub

Private Sub Command3_Click()
If Text1.Text = "" Then
Text1.Text = 3
Else
Text1.Text = Text1.Text & 3
End If
End Sub

Private Sub Command4_Click()
If Text1.Text = "" Then
Text1.Text = 4
Else
Text1.Text = Text1.Text & 4
End If
End Sub

Private Sub Command5_Click()
If Text1.Text = "" Then
Text1.Text = 5
Else
Text1.Text = Text1.Text & 5
End If
End Sub

Private Sub Command6_Click()
If Text1.Text = "" Then
Text1.Text = 6
Else
Text1.Text = Text1.Text & 6
End If
End Sub
Private Sub Command7_Click()
If Text1.Text = "" Then
Text1.Text = 7
Else
Text1.Text = Text1.Text & 7
End If
End Sub

Private Sub Command8_Click()
If Text1.Text = "" Then
Text1.Text = 8
Else
Text1.Text = Text1.Text & 8
End If
End Sub

Private Sub Command9_Click()
If Text1.Text = "" Then
Text1.Text = 9
Else
Text1.Text = Text1.Text & 9
End If
End Sub

Private Sub Command0_Click()
If Text1.Text = "" Then
Text1.Text = 0
Else
Text1.Text = Text1.Text & 0
End If
End Sub

Private Sub CommandA_Click()
xOp = "A"
If Text1.Text = "" Then
xVal = 0
Else
xVal = --Text1.Text
Text1.Text = ""
End If
End Sub

Private Sub CommandC_Click()
If Text1.Text = "" Then
Text1.Text = "."
Else
Text1.Text = Text1.Text & "."
End If
End Sub

Private Sub CommandD_Click()
xOp = "D"
If Text1.Text = "" Then
xVal = 0
Else
xVal = --Text1.Text
Text1.Text = ""
End If
End Sub

Private Sub CommandDel_Click()
Text1.Text = ""
End Sub

Private Sub CommandE_Click()
Select Case xOp
Case "A"
Text1.Text = Text1.Text + xVal
Case "S"
Text1.Text = xVal - Text1.Text
Case "M"
Text1.Text = Text1.Text * xVal
Case "D"
Text1.Text = xVal / Text1.Text
End Select
End Sub

Private Sub CommandM_Click()
xOp = "M"
If Text1.Text = "" Then
xVal = 0
Else
xVal = --Text1.Text
Text1.Text = ""
End If
End Sub

Private Sub CommandS_Click()
xOp = "S"
If Text1.Text = "" Then
xVal = 0
Else
xVal = --Text1.Text
Text1.Text = ""
End If
End Sub

这是我第一次做计算器，蛮有意思的。应该有更简单的代码，比如根据鼠标点窗体的位置决定作为0-9的数字输入、运算符等。

㈨ 用VB设计一个计算器

'这个很简单的了，你用记事本把这段代码复制过去，然后另存为.frm就可以了
'然后用vb打开。看看效果。
'以下保存为 任务名称.frm
VERSION 5.00
Begin VB.Form Form1
Caption = "计算机"
ClientHeight = 4230
ClientLeft = 60
ClientTop = 750
ClientWidth = 3165
LinkTopic = "Form1"
MaxButton = 0 'False
MinButton = 0 'False
ScaleHeight = 4230
ScaleWidth = 3165
StartUpPosition = 2 '屏幕中心
Begin VB.Frame Frame1
Height = 3495
Left = 120
TabIndex = 1
Top = 600
Width = 2895
Begin VB.CommandButton cmdResult
Caption = "="
BeginProperty Font
Name = "宋体"
Size = 12
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 1080
TabIndex = 20
Top = 3000
Width = 1695
End
Begin VB.CommandButton cmdOff
Caption = "OFF"
Height = 375
Left = 1560
TabIndex = 19
Top = 240
Width = 495
End
Begin VB.CommandButton cmdCE
Caption = "CE"
Height = 375
Left = 2280
TabIndex = 18
Top = 240
Width = 495
End
Begin VB.CommandButton cmdchu
Caption = "/"
Height = 375
Left = 2280
TabIndex = 17
Top = 2520
Width = 495
End
Begin VB.CommandButton cmdjia
Caption = "+"
Height = 375
Left = 2280
TabIndex = 16
Top = 720
Width = 495
End
Begin VB.CommandButton cmd0
Caption = "0"
Height = 375
Left = 840
TabIndex = 15
Top = 2520
Width = 495
End
Begin VB.CommandButton cmd6
Caption = "6"
Height = 375
Left = 1560
TabIndex = 14
Top = 1320
Width = 495
End
Begin VB.CommandButton cmd8
Caption = "8"
Height = 375
Left = 840
TabIndex = 13
Top = 720
Width = 495
End
Begin VB.CommandButton cmd4
Caption = "4"
Height = 375
Left = 120
TabIndex = 12
Top = 1320
Width = 495
End
Begin VB.CommandButton cmd9
Caption = "9"
Height = 375
Left = 1560
TabIndex = 11
Top = 720
Width = 495
End
Begin VB.CommandButton cmd2
Caption = "2"
Height = 375
Left = 840
TabIndex = 10
Top = 1920
Width = 495
End
Begin VB.CommandButton cmdjian
Caption = "-"
Height = 375
Left = 2280
TabIndex = 9
Top = 1320
Width = 495
End
Begin VB.CommandButton cmdPoint
Caption = "."
BeginProperty Font
Name = "宋体"
Size = 12
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 1560
TabIndex = 8
Top = 2520
Width = 495
End
Begin VB.CommandButton cmdcheng
Caption = "*"
Height = 375
Left = 2280
TabIndex = 7
Top = 1920
Width = 495
End
Begin VB.CommandButton cmd5
Caption = "5"
Height = 375
Left = 840
TabIndex = 6
Top = 1320
Width = 495
End
Begin VB.CommandButton cmd3
Caption = "3"
Height = 375
Left = 1560
TabIndex = 5
Top = 1905
Width = 495
End
Begin VB.CommandButton cmd1
Caption = "1"
Height = 375
Left = 120
TabIndex = 4
Top = 1920
Width = 495
End
Begin VB.CommandButton cmd7
Caption = "7"
Height = 375
Left = 120
TabIndex = 3
Top = 720
Width = 495
End
Begin VB.CommandButton cmdChange
Caption = "+/-"
Height = 375
Left = 120
TabIndex = 2
Top = 2520
Width = 495
End
End
Begin VB.TextBox txt
Alignment = 1 'Right Justify
Enabled = 0 'False
BeginProperty Font
Name = "宋体"
Size = 10.5
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 120
Locked = -1 'True
TabIndex = 0
Top = 120
Width = 2895
End
Begin VB.Menu meuFile
Caption = "文件(&F)"
Begin VB.Menu meuExit
Caption = "退出(&X)"
Shortcut = ^X
End
End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim XiaoShu As Boolean
'在窗体变量中声明一个布尔值来判断是否按下了小数点键，防止txt中出现多个小数。如果已经输入了小数点则Xiaoshu为True，否则为False

Dim FuHao As Byte
'声明一个Byte来记录我们按下了什么符号，1为"+"，2为"-"，3为"*"，4为"/"

Dim FirstNumber As Double
'声明一个变量来记录操作数的第一个数,如A+B，那么FirstNumber来记下A的值。

Dim DengHao As Boolean
'声明一个变量来记录是否按下了=号，如果按下了则为True

Private Sub cmd0_Click()
If txt.Text <> "" Then txt.Text = txt.Text + "0" '防止多个0在文本中出现
End Sub

Private Sub cmd1_Click() '按下1时
If Not DengHao Then '没按下等号
txt.Text = txt.Text + "1"
Else
txt.Text = "1" '按下了等号
DengHao = False
End If
End Sub

Private Sub cmd2_Click() '按下2时
If Not DengHao Then '没按下等号
txt.Text = txt.Text + "2"
Else
txt.Text = "2" '按下了等号
DengHao = False
End If
End Sub

Private Sub cmd3_click() '按下3时
If Not DengHao Then '没按下等号
txt.Text = txt.Text + "3"
Else
txt.Text = "3" '按下了等号
DengHao = False
End If
End Sub

Private Sub cmd4_Click() '按下4时
If Not DengHao Then '没按下等号
txt.Text = txt.Text + "4"
Else
txt.Text = "4" '按下了等号
DengHao = False
End If
End Sub

Private Sub cmd5_Click() '按下5时
If Not DengHao Then '没按下等号
txt.Text = txt.Text + "5"
Else
txt.Text = "5" '按下了等号
DengHao = False
End If
End Sub

Private Sub cmd6_Click() '按下6时
If Not DengHao Then '没按下等号
txt.Text = txt.Text + "6"
Else
txt.Text = "6" '按下了等号
DengHao = False
End If
End Sub

Private Sub cmd7_Click() '按下7时
If Not DengHao Then '没按下等号
txt.Text = txt.Text + "7"
Else
txt.Text = "7" '按下了等号
DengHao = False
End If
End Sub

Private Sub cmd8_Click() '按下8时
If Not DengHao Then '没按下等号
txt.Text = txt.Text + "8"
Else
txt.Text = "8" '按下了等号
DengHao = False
End If
End Sub

Private Sub cmd9_Click() '按下9时
If Not DengHao Then '没按下等号
txt.Text = txt.Text + "9"
Else
txt.Text = "9" '按下了等号
DengHao = False
End If
End Sub

Private Sub cmdCE_Click()
txt.Text = ""
XiaoShu = False
End Sub

Private Sub cmdChange_Click()
If (Sgn(Val(txt.Text))) = 1 Then txt.Text = "-" + txt.Text: Exit Sub '用Sgn来判断txt文本框内的值的符号。大于0的话就在前面加上"-"
If (Sgn(Val(txt.Text))) = -1 Then txt.Text = Abs(Val(txt.Text)) 'txt文本框的文本为大于0的数txt前面的"-"去掉。
End Sub

Private Sub cmdcheng_Click()
FirstNumber = Val(txt.Text)
FuHao = 3
txt.Text = ""
XiaoShu = False
End Sub

Private Sub cmdchu_Click()
FirstNumber = Val(txt.Text)
FuHao = 4
txt.Text = ""
XiaoShu = False
End Sub

Private Sub cmdjia_Click()
FirstNumber = Val(txt.Text)
FuHao = 1
txt.Text = ""
XiaoShu = False
End Sub

Private Sub cmdjian_Click()
FirstNumber = Val(txt.Text)
FuHao = 2
txt.Text = ""
XiaoShu = False
End Sub

Private Sub cmdOff_Click()
End
End Sub

Private Sub cmdPoint_Click()
If txt.Text = "" Then txt.Text = "0"
If Not XiaoShu Then '当我们以前没有按下小数点键时在txt中加上小数点
txt.Text = txt.Text + "."
XiaoShu = True
End If
End Sub

Private Sub cmdResult_Click()
If FuHao = 1 Then '按下了+号
txt.Text = FirstNumber + Val(txt.Text)
End If
If FuHao = 2 Then '按下了-号
txt.Text = FirstNumber - Val(txt.Text)
End If
If FuHao = 3 Then '按下了*号
txt.Text = FirstNumber * Val(txt.Text)
End If
If FuHao = 4 Then '按下了、号
txt.Text = FirstNumber / Val(txt.Text)
End If
DengHao = True '记录下按了=号
XiaoShu = False
End Sub

Private Sub meuExit_Click()
End
End Sub