PathIO.ReadTextAsync 方法

public:
 static IAsyncOperation<Platform::String ^> ^ ReadTextAsync(Platform::String ^ absolutePath);

/// [Windows.Foundation.Metadata.Overload("ReadTextAsync")]
/// [Windows.Foundation.Metadata.RemoteAsync]
 static IAsyncOperation<winrt::hstring> ReadTextAsync(winrt::hstring const& absolutePath);

[Windows.Foundation.Metadata.Overload("ReadTextAsync")]
[Windows.Foundation.Metadata.RemoteAsync]
public static IAsyncOperation<string> ReadTextAsync(string absolutePath);

function readTextAsync(absolutePath)

Public Shared Function ReadTextAsync (absolutePath As String) As IAsyncOperation(Of String)

參數

傳回

當這個方法順利完成時，它會以文字字串的形式傳回檔案的內容。

屬性

OverloadAttribute RemoteAsyncAttribute

範例

此範例示範如何使用 readTextAsync (absolutePath) ，從路徑 absoluteFilePath 的檔案讀取文字，如下所示：

Windows.Storage.PathIO.readTextAsync(absoluteFilePath).then(function (contents) {
    // Add code to process the text read from the file
});

您可以使用 然後 或 完成 來宣告函式，以擷取和處理從檔案讀取的文字。 readTextAsync 方法完成之後，文字會以 字串 物件的形式傳遞至此函式 (contents 範例) 。

另請參閱

• ReadTextAsync(String, UnicodeEncoding)

public:
 static IAsyncOperation<Platform::String ^> ^ ReadTextAsync(Platform::String ^ absolutePath, UnicodeEncoding encoding);

/// [Windows.Foundation.Metadata.Overload("ReadTextWithEncodingAsync")]
/// [Windows.Foundation.Metadata.RemoteAsync]
 static IAsyncOperation<winrt::hstring> ReadTextAsync(winrt::hstring const& absolutePath, UnicodeEncoding const& encoding);

[Windows.Foundation.Metadata.Overload("ReadTextWithEncodingAsync")]
[Windows.Foundation.Metadata.RemoteAsync]
public static IAsyncOperation<string> ReadTextAsync(string absolutePath, UnicodeEncoding encoding);

function readTextAsync(absolutePath, encoding)

Public Shared Function ReadTextAsync (absolutePath As String, encoding As UnicodeEncoding) As IAsyncOperation(Of String)

參數

傳回

當這個方法順利完成時，它會以文字字串的形式傳回檔案的內容。

屬性

OverloadAttribute RemoteAsyncAttribute

另請參閱

• ReadTextAsync(String)