VB问题，Dir1.Path= Drive1.Drive File1.Pah=Dir1.Path Debug.Print Fn 都是什么意思啊泪！

Private Sub Drive1_Change()
Dir1.Path = Drive1.Drive
End Sub
Private Sub Dir1_Change()
File1.Path = Dir1.Path
End Sub
Private Sub File1_Click()
Dim s As String, Fn As String
Fn = Dir1.Path & "\" & File1.FileName
Debug.Print Fn
Open Fn For Input As #1
Text1.Text = ""
Do While Not EOF(1)
Line Input #1, s
Text1.Text = Text1.Text & s & Chr(13) & Chr(10)
Loop
Close #1
End Sub
Private Sub Form_Load()
End Sub
里面的Chr（13）和Chr（10）都是什么意思？ 主要是上面的 Dir1.Path = Drive1.Drive， File1.Path = Dir1.Path，Text1.Text = Text1.Text & s & Chr(13) & Chr(10)，Debug.Print Fn这几句不懂，谢谢大神！

相关了解……