File.ReadAllBytesAsync(String, CancellationToken) 方法
定义
以异步形式打开一个二进制文件,将文件的内容读入一个字节数组,然后关闭该文件。Asynchronously opens a binary file, reads the contents of the file into a byte array, and then closes the file.
public static System.Threading.Tasks.Task<byte[]> ReadAllBytesAsync (string path, System.Threading.CancellationToken cancellationToken = default);
static member ReadAllBytesAsync : string * System.Threading.CancellationToken -> System.Threading.Tasks.Task<byte[]>
Public Shared Function ReadAllBytesAsync (path As String, Optional cancellationToken As CancellationToken = Nothing) As Task(Of Byte())
参数
- path
- String
要打开以进行读取的文件。The file to open for reading.
- cancellationToken
- CancellationToken
要监视取消请求的标记。The token to monitor for cancellation requests. 默认值是 None。The default value is None.
返回
表示异步读取操作的任务,该任务包装包含文件内容的字节数组。A task that represents the asynchronous read operation, which wraps the byte array containing the contents of the file.