C＃-流/文件流EOF [英] C# - Stream/FileStream EOF

问题描述

有人知道文件的结尾吗？
我正在使用BinaryReader并尝试了PeekChar-但它引发了异常。还有其他建议吗？

Is anyone familiar with a way to find out you're at the end of the file? I'm using BinaryReader and tried PeekChar - but it throws an exception. Any other suggestions?

谢谢。

推荐答案

从 Stream ，如果您 Read（缓冲区，偏移量，计数），则会得到非正结果，而如果您 Peek（）您会得到否定的结果。

From a Stream, if you Read(buffer, offset, count) you'll get a non-positive result, and if you Peek() you'll get a negative result.

带有 BinaryReader ，文档建议 PeekChar（）应该返回负值：

With a BinaryReader, the documentation suggests that PeekChar() should return negative:

返回值

类型：System.Int32
下一个可用字符；如果没有更多可用字符或流不支持查找，则返回-1。

Return Value

Type: System.Int32 The next available character, or -1 if no more characters are available or the stream does not support seeking.

您确定这不是腐败流吗？即剩余的数据无法根据给定的编码形成完整的 char ？

are you sure this isn't a corrupt stream? i.e. the remaining data cannot form a complete char from the given encoding?

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