Imports System.IO
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles MyBase.Load
If Boo_DirExist("C:/Lob.cn/") Then
MsgBox("存在C:/Lob.cn/目录")
Else
MsgBox("不存在C:/Lob.cn/目录")
End If
If Boo_FileExist("C:/Lob.txt") Then
MsgBox("存在C:/Lob.txt文件")
Else
MsgBox("不存在C:/Lob.txt文件")
End If
End Sub
'判断目录是否存在的函数 传入String值 返回Boolean值
Private Function Boo_DirExist(ByVal Str_Path As String) As Boolean
Boo_DirExist = System.IO.Directory.Exists(Str_Path)
End Function
'判断文件是否存在的函数 传入String值 返回Boolean值
Private Function Boo_FileExist(ByVal Str_File As String) As Boolean
Boo_FileExist = System.IO.File.Exists(Str_File)
End Function
End Class
原文链接：https://www.f2er.com/vb/262583.html