vb.net，一文件夹下存在若干子文件夹，如何判断哪些子文件夹为空（子文

发布网友发布时间：2022-04-22 19:56

共1个回答

热心网友时间：2023-11-17 22:10

'通过过System.IO.DirectoryInfo对象可以查阅目录信息，下面是遍历一个文件夹下所有层次的子文件夹，如果只检查下一层目录就更简单了。
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim folder = New System.IO.DirectoryInfo("D:\Documents")
        Dim items = getemptyfolder(folder)
        For Each item In items
            Console.WriteLine(item.FullName)
        Next
    End Sub
    Function getemptyfolder(ByVal folder As System.IO.DirectoryInfo) As System.IO.DirectoryInfo()
        Dim items As New List(Of System.IO.DirectoryInfo)
        If folder.EnumerateFiles().Count = 0 Then
            items.Add(folder)
        End If
        Dim subfolders = folder.EnumerateDirectories()
        For Each subfolder In subfolders
            items.AddRange(getemptyfolder(subfolder)) '查询树形目录结构类型数据用递归法实现
        Next
        Return items.ToArray()
    End Function
'还是学c#语言吧，我发觉同样一个数组，c#功能多的多，vb.net没几条方法可用。