DirectoryInfo(String) 建構函式
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
初始化指定路徑上類別的新實例 DirectoryInfo 。
public:
DirectoryInfo(System::String ^ path);public DirectoryInfo(string path);new System.IO.DirectoryInfo : string -> System.IO.DirectoryInfoPublic Sub New (path As String)參數
- path
- String
一個字串，指定建立 的 DirectoryInfo路徑。
例外狀況
path 是 null。
來電者沒有所需的權限。
.NET Framework 及 2.1 .NET Core 版本：path 包含無效字元，如 “、<、> 或 |。
指定的路徑、檔名或兩者都超過系統定義的最大長度。
範例
以下範例使用此構造子建立指定的目錄與子目錄，並展示包含子目錄的目錄無法被刪除。
using System;
using System.IO;
class Test
{
public static void Main()
{
// Specify the directories you want to manipulate.
DirectoryInfo di1 = new DirectoryInfo(@"c:\MyDir");
DirectoryInfo di2 = new DirectoryInfo(@"c:\MyDir\temp");
try
{
// Create the directories.
di1.Create();
di2.Create();
// This operation will not be allowed because there are subdirectories.
Console.WriteLine("I am about to attempt to delete {0}.", di1.Name);
di1.Delete();
Console.WriteLine("The Delete operation was successful, which was unexpected.");
}
catch (Exception)
{
Console.WriteLine("The Delete operation failed as expected.");
}
finally {}
}
}
open System.IO
// Specify the directories you want to manipulate.
let di1 = DirectoryInfo @"c:\MyDir"
let di2 = DirectoryInfo @"c:\MyDir\temp"
try
// Create the directories.
di1.Create()
di2.Create()
// This operation will not be allowed because there are subdirectories.
printfn $"I am about to attempt to delete {di1.Name}."
di1.Delete()
printfn "The Delete operation was successful, which was unexpected."
with _ ->
printfn "The Delete operation failed as expected."
Imports System.IO
Public Class Test
Public Shared Sub Main()
' Specify the directories you want to manipulate.
Dim di1 As DirectoryInfo = New DirectoryInfo("c:\MyDir")
Dim di2 As DirectoryInfo = New DirectoryInfo("c:\MyDir\temp")
Try
' Create the directories.
di1.Create()
di2.Create()
' This operation will not be allowed because there are subdirectories.
Console.WriteLine("I am about to attempt to delete {0}.", di1.Name)
di1.Delete()
Console.WriteLine("The Delete operation was successful, which was unexpected.")
Catch e As Exception
Console.WriteLine("The Delete operation failed as expected.")
End Try
End Sub
End Class
備註
此建構子不會檢查目錄是否存在。 此建構子是用於後續操作存取磁碟的字串的佔位符。
path參數可以是檔案名稱，包括位於通用命名慣例（UNC）共享上的檔案。
注意事項
當您編譯一組具有特定文化設定的字元，並擷取具有不同文化設定的相同字元時，這些字元可能無法解譯，而且可能會導致擲回例外狀況。
關於常見 I/O 任務的清單，請參見 Common I/O 任務。
