OS 句柄的位置不是 FileStream 希望的位置。请不要在一个 FileStream 和 Win32 代码(或另一个 FileStream)中同时使用一个句柄。这可能导致数据丢失。
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English version
The OS handle's position is not what FileStream expected. Do not use a handle simultaneously in one FileStream and in Win32 code or another FileStream. This may cause data loss.