本文整理汇总了VB.NET中System.IO.Path.GetDirectoryName方法的典型用法代码示例。如果您正苦于以下问题：VB.NET Path.GetDirectoryName方法的具体用法？VB.NET Path.GetDirectoryName怎么用？VB.NET Path.GetDirectoryName使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.IO.Path的用法示例。
在下文中一共展示了Path.GetDirectoryName方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1:
Dim filepath As String = "C:\MyDir\MySubDir\myfile.ext"
Dim directoryName As String
Dim i As Integer = 0
While filepath <> Nothing
directoryName = Path.GetDirectoryName(filepath)
Console.WriteLine("GetDirectoryName('{0}') returns '{1}'", _
filepath, directoryName)
filepath = directoryName
If i = 1
filepath = directoryName + "\" ' this will preserve the previous path
End If
i = i + 1
End While输出：
GetDirectoryName('C:\MyDir\MySubDir\myfile.ext') returns 'C:\MyDir\MySubDir'
GetDirectoryName('C:\MyDir\MySubDir') returns 'C:\MyDir'
GetDirectoryName('C:\MyDir\') returns 'C:\MyDir'
GetDirectoryName('C:\MyDir') returns 'C:\'
GetDirectoryName('C:\') returns ''
示例2: Module1
' 导入命名空间
Imports System.IO
Module Module1
Sub Main()
Dim P As String = "\"
Try
Console.WriteLine("Starting path: {0}", P)
Console.WriteLine("Directory name: {0}", Path.GetDirectoryName(P))
Console.WriteLine("Extension: {0}", Path.GetExtension(P))
Console.WriteLine("Filename: {0}", Path.GetFileName(P))
Console.WriteLine("Filename without extension: {0}", Path.GetFileNameWithoutExtension(P))
Console.WriteLine("Full path: {0}", Path.GetFullPath(P))
Console.WriteLine("Root: {0}", Path.GetPathRoot(P))
Catch E As Exception
Console.WriteLine("Error: {0}", E.Message)
End Try
Console.WriteLine()
End Sub
End Module