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谁知道 VB做计算器，源代码？

罐笼 • 2023-7-22 • 安全 • 阅读 51

谁知道 VB做计算器，源代码？,第1张

VERSION 500
Begin VBForm 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 = 975
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Icon = "CALCfrx":0000
LinkMode = 1 'Source
LinkTopic = "Form1"
MaxButton = 0 'False
PaletteMode = 1 'UseZOrder
ScaleHeight = 2970
ScaleWidth = 3270
WhatsThisHelp = -1 'True
Begin VBCommandButton Number
Caption = "7"
Height = 480
Index = 7
Left = 120
TabIndex = 7
Top = 600
Width = 480
End
Begin VBCommandButton Number
Caption = "8"
Height = 480
Index = 8
Left = 720
TabIndex = 8
Top = 600
Width = 480
End
Begin VBCommandButton Number
Caption = "9"
Height = 480
Index = 9
Left = 1320
TabIndex = 9
Top = 600
Width = 480
End
Begin VBCommandButton Cancel
Caption = "C"
Height = 480
Left = 2040
TabIndex = 10
Top = 600
Width = 480
End
Begin VBCommandButton CancelEntry
Caption = "CE"
Height = 480
Left = 2640
TabIndex = 11
Top = 600
Width = 480
End
Begin VBCommandButton Number
Caption = "4"
Height = 480
Index = 4
Left = 120
TabIndex = 4
Top = 1200
Width = 480
End
Begin VBCommandButton Number
Caption = "5"
Height = 480
Index = 5
Left = 720
TabIndex = 5
Top = 1200
Width = 480
End
Begin VBCommandButton Number
Caption = "6"
Height = 480
Index = 6
Left = 1320
TabIndex = 6
Top = 1200
Width = 480
End
Begin VBCommandButton Operator
Caption = "+"
Height = 480
Index = 1
Left = 2040
TabIndex = 12
Top = 1200
Width = 480
End
Begin VBCommandButton Operator
Caption = "-"
Height = 480
Index = 3
Left = 2640
TabIndex = 13
Top = 1200
Width = 480
End
Begin VBCommandButton Number
Caption = "1"
Height = 480
Index = 1
Left = 120
TabIndex = 1
Top = 1800
Width = 480
End
Begin VBCommandButton Number
Caption = "2"
Height = 480
Index = 2
Left = 720
TabIndex = 2
Top = 1800
Width = 480
End
Begin VBCommandButton Number
Caption = "3"
Height = 480
Index = 3
Left = 1320
TabIndex = 3
Top = 1800
Width = 480
End
Begin VBCommandButton Operator
Caption = "X"
Height = 480
Index = 2
Left = 2040
TabIndex = 14
Top = 1800
Width = 480
End
Begin VBCommandButton Operator
Caption = "/"
Height = 480
Index = 0
Left = 2640
TabIndex = 15
Top = 1800
Width = 480
End
Begin VBCommandButton Number
Caption = "0"
Height = 480
Index = 0
Left = 120
TabIndex = 0
Top = 2400
Width = 1080
End
Begin VBCommandButton Decimal
Caption = ""
Height = 480
Left = 1320
TabIndex = 18
Top = 2400
Width = 480
End
Begin VBCommandButton Operator
Caption = "="
Height = 480
Index = 4
Left = 2040
TabIndex = 16
Top = 2400
Width = 480
End
Begin VBCommandButton Percent
Caption = "%"
Height = 480
Left = 2640
TabIndex = 17
Top = 2400
Width = 480
End
Begin VBLabel 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 *** 作数
Dim DecimalFlag As Integer ' 小数点仍然存在吗？
Dim NumOps As Integer ' *** 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 *** 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")
'DecimalCaption = 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 *** 作数，则设置 Op1。
' 如果有两个 *** 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 *** 作数的百分数
Private Sub Percent_Click()
Readout = Readout / 100
LastInput = "Ops"
OpFlag = "%"
NumOps = NumOps + 1
DecimalFlag = True
End Sub
分享

不再搜了
VB自己就有例子（Calc）
您可以找一下
如果实在找不到，我把主窗体 CALCFRM 的内容给您
您可以将下面的文本复制到记事本里，然后保存为 CALCFRM，再用VB打开即可：
VERSION 500
Begin VBForm Calculator
BorderStyle = 1 'Fixed Single
Caption = "计算器"
ClientHeight = 2970
ClientLeft = 2580
ClientTop = 1485
ClientWidth = 3270
ClipControls = 0 'False
BeginProperty Font
Name = "宋体"
Size = 10
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
' Icon = "CALCfrx":0000
'NOTICE:由于图标的显示需要二进制文件 Calcfrx，因此我把这一行禁用了
LinkMode = 1 'Source
LinkTopic = "Form1"
MaxButton = 0 'False
PaletteMode = 1 'UseZOrder
ScaleHeight = 2970
ScaleWidth = 3270
WhatsThisHelp = -1 'True
Begin VBCommandButton Number
Caption = "7"
Height = 480
Index = 7
Left = 120
TabIndex = 7
Top = 600
Width = 480
End
Begin VBCommandButton Number
Caption = "8"
Height = 480
Index = 8
Left = 720
TabIndex = 8
Top = 600
Width = 480
End
Begin VBCommandButton Number
Caption = "9"
Height = 480
Index = 9
Left = 1320
TabIndex = 9
Top = 600
Width = 480
End
Begin VBCommandButton Cancel
Caption = "C"
Height = 480
Left = 2040
TabIndex = 10
Top = 600
Width = 480
End
Begin VBCommandButton CancelEntry
Caption = "CE"
Height = 480
Left = 2640
TabIndex = 11
Top = 600
Width = 480
End
Begin VBCommandButton Number
Caption = "4"
Height = 480
Index = 4
Left = 120
TabIndex = 4
Top = 1200
Width = 480
End
Begin VBCommandButton Number
Caption = "5"
Height = 480
Index = 5
Left = 720
TabIndex = 5
Top = 1200
Width = 480
End
Begin VBCommandButton Number
Caption = "6"
Height = 480
Index = 6
Left = 1320
TabIndex = 6
Top = 1200
Width = 480
End
Begin VBCommandButton Operator
Caption = "+"
Height = 480
Index = 1
Left = 2040
TabIndex = 12
Top = 1200
Width = 480
End
Begin VBCommandButton Operator
Caption = "-"
Height = 480
Index = 3
Left = 2640
TabIndex = 13
Top = 1200
Width = 480
End
Begin VBCommandButton Number
Caption = "1"
Height = 480
Index = 1
Left = 120
TabIndex = 1
Top = 1800
Width = 480
End
Begin VBCommandButton Number
Caption = "2"
Height = 480
Index = 2
Left = 720
TabIndex = 2
Top = 1800
Width = 480
End
Begin VBCommandButton Number
Caption = "3"
Height = 480
Index = 3
Left = 1320
TabIndex = 3
Top = 1800
Width = 480
End
Begin VBCommandButton Operator
Caption = "X"
Height = 480
Index = 2
Left = 2040
TabIndex = 14
Top = 1800
Width = 480
End
Begin VBCommandButton Operator
Caption = "/"
Height = 480
Index = 0
Left = 2640
TabIndex = 15
Top = 1800
Width = 480
End
Begin VBCommandButton Number
Caption = "0"
Height = 480
Index = 0
Left = 120
TabIndex = 0
Top = 2400
Width = 1080
End
Begin VBCommandButton Decimal
Caption = ""
Height = 480
Left = 1320
TabIndex = 18
Top = 2400
Width = 480
End
Begin VBCommandButton Operator
Caption = "="
Height = 480
Index = 4
Left = 2040
TabIndex = 16
Top = 2400
Width = 480
End
Begin VBCommandButton Percent
Caption = "%"
Height = 480
Left = 2640
TabIndex = 17
Top = 2400
Width = 480
End
Begin VBLabel Readout
Alignment = 1 'Right Justify
BackColor = &H0000FFFF&
BorderStyle = 1 'Fixed Single
Caption = "0"
BeginProperty Font
Name = "宋体"
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 ' 预先输入 *** 作数。
Dim DecimalFlag As Integer ' 小数点存在吗？
Dim NumOps As Integer ' *** 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 *** 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")
'DecimalCaption = 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 *** 作数，则设置 Op1。
' 如果有两个 *** 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 "除数不能为零", 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 *** 作数的百分数。
Private Sub Percent_Click()
Readout = Readout / 100
LastInput = "Ops"
OpFlag = "%"
NumOps = NumOps + 1
DecimalFlag = True
End Sub

我也是刚学会的,太简单!
Dim cleardisplay As Boolean
Dim operand1 As Double
Dim operand2 As Double
Dim operator As String
Private Sub Command1_Click(Index As Integer) '控件数组command1(index),数字0到9
If cleardisplay Then
Text1Text = ""
cleardisplay = False
End If
If Len(Text1Text) < 10 Then
Text1Text = Text1Text + Command1(Index)Caption
End If
End Sub
Private Sub Command11_Click() '等于号
Dim aa As Double
operand2 = Val(Text1Text)
If operator = "+" Then aa = operand1 + operand2
If operator = "-" Then aa = operand1 - operand2
If operator = "" Then aa = operand1 operand2
If operator = "/" Then aa = operand1 / operand2
Text1Text = aa
operator = aa
Text2Text = aa
End Sub
Private Sub Command2_Click() '小数点
If InStr(Text1Text, "") Then
Exit Sub
Else
Text1Text = Text1Text + ""
End If
End Sub
Private Sub Command3_Click() '正负号
Text1Text = -Val(Text1Text)
End Sub
Private Sub Command5_Click() '清空text1,tex2里面的内容
Text1Text = ""
Text2Text = ""
End Sub
Private Sub Command6_Click() '加号
operand1 = Val(Text1Text)
operator = "+"
Text1Text = ""
Text2Text = operand1 '也让他在text2里面显示
End Sub
Private Sub Command7_Click() '减号
operand1 = Val(Text1Text)
operator = "-"
Text1Text = ""
Text2 = operand1 '也让他在text2里面显示
End Sub
Private Sub Command8_Click() '乘号
operand1 = Val(Text1Text)
operator = ""
Text1Text = ""
Text2Text = operand1 '也让他在text2里面显示
End Sub
Private Sub Command9_Click() '除号
operand1 = Val(Text1Text)
operator = "/"
Text1Text = ""
Text2Text = operand1 '也让他在text2里面显示
End Sub
Private Sub Form_Load()
End Sub

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原文地址: http://outofmemory.cn/yw/13365255.html

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