📄 计算器作业.frm
字号:
VERSION 5.00
Begin VB.Form Form1
Caption = "计算器"
ClientHeight = 5370
ClientLeft = 4860
ClientTop = 3120
ClientWidth = 4245
LinkTopic = "Form1"
MaxButton = 0 'False
ScaleHeight = 5370
ScaleWidth = 4245
Begin VB.CommandButton Command9
Caption = "tan"
Height = 375
Index = 2
Left = 1680
TabIndex = 23
Top = 3360
Width = 855
End
Begin VB.CommandButton Command9
Caption = "cos"
Height = 375
Index = 1
Left = 2760
TabIndex = 22
Top = 3360
Width = 855
End
Begin VB.CommandButton Command9
Caption = "sin"
Height = 375
Index = 0
Left = 600
TabIndex = 21
Top = 3360
Width = 855
End
Begin VB.CommandButton Command8
Caption = "back"
Height = 375
Left = 2520
TabIndex = 16
Top = 2880
Width = 495
End
Begin VB.CommandButton Command7
Caption = "+\-"
Height = 375
Left = 2520
TabIndex = 15
Top = 2400
Width = 495
End
Begin VB.CommandButton Command6
Caption = "cls"
Height = 375
Left = 2520
TabIndex = 13
Top = 1440
Width = 495
End
Begin VB.CommandButton Command5
Caption = "."
BeginProperty Font
Name = "宋体"
Size = 15.75
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 1200
TabIndex = 11
Top = 2880
Width = 495
End
Begin VB.CommandButton Command4
Caption = "sqrt"
Height = 375
Left = 2520
TabIndex = 14
Top = 1920
Width = 495
End
Begin VB.CommandButton Command3
Caption = "="
BeginProperty Font
Name = "宋体"
Size = 15.75
Charset = 134
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 1800
TabIndex = 12
Top = 2880
Width = 495
End
Begin VB.CommandButton Command1
Caption = "9"
Height = 375
Index = 9
Left = 600
TabIndex = 10
Top = 2880
Width = 495
End
Begin VB.CommandButton Command2
Caption = "*"
BeginProperty Font
Name = "宋体"
Size = 10.5
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Index = 3
Left = 3120
TabIndex = 20
Top = 2880
Width = 495
End
Begin VB.CommandButton Command2
Caption = "-"
BeginProperty Font
Name = "宋体"
Size = 14.25
Charset = 134
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Index = 2
Left = 3120
TabIndex = 19
Top = 2400
Width = 495
End
Begin VB.CommandButton Command2
Caption = "+"
BeginProperty Font
Name = "宋体"
Size = 14.25
Charset = 134
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Index = 1
Left = 3120
TabIndex = 18
Top = 1920
Width = 495
End
Begin VB.TextBox Text1
Alignment = 1 'Right Justify
BeginProperty Font
Name = "宋体"
Size = 14.25
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 435
Left = 480
Locked = -1 'True
MaxLength = 20
TabIndex = 0
TabStop = 0 'False
Top = 600
Width = 3255
End
Begin VB.CommandButton Command2
Caption = "/"
BeginProperty Font
Name = "宋体"
Size = 10.5
Charset = 134
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Index = 0
Left = 3120
TabIndex = 17
Top = 1440
Width = 495
End
Begin VB.CommandButton Command1
Caption = "8"
Height = 375
Index = 8
Left = 1800
TabIndex = 9
Top = 2400
Width = 495
End
Begin VB.CommandButton Command1
Caption = "7"
Height = 375
Index = 7
Left = 1200
TabIndex = 8
Top = 2400
Width = 495
End
Begin VB.CommandButton Command1
Caption = "6"
Height = 375
Index = 6
Left = 600
TabIndex = 7
Top = 2400
Width = 495
End
Begin VB.CommandButton Command1
Caption = "5"
Height = 375
Index = 5
Left = 1800
TabIndex = 6
Top = 1920
Width = 495
End
Begin VB.CommandButton Command1
Caption = "4"
Height = 375
Index = 4
Left = 1200
TabIndex = 5
Top = 1920
Width = 495
End
Begin VB.CommandButton Command1
Caption = "3"
Height = 375
Index = 3
Left = 600
TabIndex = 4
Top = 1920
Width = 495
End
Begin VB.CommandButton Command1
Caption = "2"
Height = 375
Index = 2
Left = 1800
TabIndex = 3
Top = 1440
Width = 495
End
Begin VB.CommandButton Command1
Caption = "1"
Height = 375
Index = 1
Left = 1200
TabIndex = 2
Top = 1440
Width = 495
End
Begin VB.CommandButton Command1
Caption = "0"
Height = 375
Index = 0
Left = 600
TabIndex = 1
Top = 1440
Width = 495
End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim num1#, num2#
Dim res As Boolean
Dim op As Byte
Private Sub Command1_Click(Index As Integer)
If res = False Then
Text1 = Text1 & Index
Else
Text1 = Index
End If
res = False
End Sub
Private Sub Command2_Click(Index As Integer)
If Text1 <> "" Then
num1 = Text1
op = Index
End If
res = True
End Sub
Private Sub Command3_Click()
If Text1 <> "" Then
num2 = Text1
Select Case op
Case 0
If num2 = 0 Then
Text1 = "除数不能为零"
Else
Text1 = num1 / num2
End If
Case 1
Text1 = num1 + num2
Case 2
Text1 = num1 - num2
Case 3
Text1 = num1 * num2
End Select
res = True
End If
End Sub
Private Sub Command4_Click()
If Text1 <> "" Then
Text1 = Sqr(Text1)
End If
res = True
End Sub
Private Sub Command5_Click()
If res = True Then
Text1 = "."
ElseIf InStr(Text1, ".") = 0 Then
Text1 = Text1 & "."
End If
res = False
End Sub
Private Sub Command6_Click()
Text1 = ""
res = False
End Sub
Private Sub Command7_Click()
If Text1 <> "" Then
Select Case Sgn(Text1)
Case 1
Text1 = "-" & Text1
Case -1
Text1 = Abs(Text1)
End Select
End If
End Sub
Private Sub Command8_Click()
If Text1 <> "" Then
a = Len(Text1)
Text1 = Left(Text1, a - 1)
End If
End Sub
Private Sub Command9_Click(Index As Integer)
If Text1 <> "" Then
Select Case Index
Case 0
Text1 = Sin(Text1)
Case 1
Text1 = Cos(Text1)
Case 2
Text1 = Tan(Text1)
End Select
End If
End Sub
Private Sub Form_Load()
res = False
End Sub
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