If the output stream was stdout, and if it was redirected to a file, the selected pages will be in that file.

如果输出流是标准输出，并且被重定向至一个文件，则选定的页将在该文件中。

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In these attacks, if the cryptanalyst knows the file type, then he can use knowledge of header formats to guess at the key stream used to encode the file.

在这些袭击中，如果知道密码分析的文件类型，那么他可以使用头格式的知识来猜测用于编码文件的密钥流。

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