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2024年1月23日发(作者：human stacking)
VB简易计算器代码
以下是一个简单的VB计算器代码：
```
Public Class Form1
Dim firstNum As Double ' 第一个数字
Dim secondNum As Double ' 第二个数字
Dim operation As Integer ' 1-加法，2-减法，3-乘法，4-除法
Private Sub Button0_Click(sender As Object, e As EventArgs)
Handles
= & "0"
End Sub
Private Sub Button1_Click(sender As Object, e As EventArgs)
Handles
= & "1"
End Sub
Private Sub Button2_Click(sender As Object, e As EventArgs)
Handles
= & "2"
End Sub
Private Sub Button3_Click(sender As Object, e As EventArgs)
Handles
= & "3"
End Sub
Private Sub Button4_Click(sender As Object, e As EventArgs)
Handles
= & "4"
End Sub
Private Sub Button5_Click(sender As Object, e As EventArgs)
Handles
= & "5"
End Sub
Private Sub Button6_Click(sender As Object, e As EventArgs)
Handles
= & "6"
End Sub
Private Sub Button7_Click(sender As Object, e As EventArgs)
Handles
= & "7"
End Sub
Private Sub Button8_Click(sender As Object, e As EventArgs)
Handles
= & "8"
End Sub
Private Sub Button9_Click(sender As Object, e As EventArgs)
Handles
= & "9"
End Sub
Private Sub ButtonDot_Click(sender As Object, e As EventArgs)
Handles
If Not ns(".") Then
= & "."
End If
End Sub
Private Sub ButtonAdd_Click(sender As Object, e As EventArgs)
Handles
firstNum = ()
= ""
operation = 1
End Sub
Private Sub ButtonSubtract_Click(sender As Object, e As
EventArgs) Handles
firstNum = ()
= ""
operation = 2
End Sub
Private Sub ButtonMultiply_Click(sender As Object, e As
EventArgs) Handles
firstNum = ()
= ""
operation = 3
End Sub
Private Sub ButtonDivide_Click(sender As Object, e As
EventArgs) Handles
firstNum = ()
= ""
operation = 4
End Sub
Private Sub ButtonClear_Click(sender As Object, e As
EventArgs) Handles
= ""
End Sub
Private Sub ButtonEquals_Click(sender As Object, e As
EventArgs) Handles
Dim result As Double
secondNum = ()
Select Case operation
Case 1
result = firstNum + secondNum
Case 2
result = firstNum - secondNum
Case 3
result = firstNum * secondNum
Case 4
result = firstNum / secondNum
End Select
= ng
End Sub
End Class
```
这个计算器包括数字按钮0-9、小数点按钮、加法、减法、乘法、除法和等于按钮。用户可以点击按钮输入数字和操作符，并在文本框中看到输入的结果。点击等于按钮后，计算器将执行所选操作，并显示结果在文本框中。用户也可以点击清除按钮清空文本框中的内容。
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