VB 与 VBA 有什么区别

VB（Visual Basic）和VBA（Visual Basic for Applications）都是基于Visual Basic语言的编程语言，它们之间有一些区别。VB是一种独立的编程语言，而VBA是一种宏语言，用于在Microsoft Office应用程序中编写自定义宏和脚本。

Public Class CalculatorForm
    Private Sub btnAdd_Click(sender As Object, e As EventArgs) Handles btnAdd.Click
        Dim num1 As Integer = Integer.Parse(txtNum1.Text)
        Dim num2 As Integer = Integer.Parse(txtNum2.Text)
        Dim result As Integer = num1 + num2
        lblResult.Text = result.ToString()
    End Sub
End Class

Sub Calculator()
    Dim num1 As Integer
    Dim num2 As Integer
    Dim result As Integer
    
    num1 = Range("A1").Value
    num2 = Range("A2").Value
    result = num1 + num2
    
    Range("A3").Value = result
End Sub