此控制代碼不支援非同步作業。FileStream 建構函式的參數必須變更以表示此控制代碼為同步開啟 (也就是說它沒有因為重疊的 I/O 開啟)。

Handle does not support asynchronous operations. The parameters to the FileStream constructor may need to be changed to indicate that the handle was opened synchronously (that is, it was not opened for overlapped I/O).