乐博网系列初学者实例 VB.Net判断目录或文件是否存在的方法

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

出处：https://www.cnblogs.com/nieyj/archive/2010/12/23/1914723.html