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注意：加密文件之后如果忘记了用来加密该文件的密码，再想恢复出原始文件就不可能了。当然，这与密码本身的复杂程度有关，要想保证文件的安全，最好采用较复杂的密码，例如混合运用字母、数字和特殊字符（如“$”符号等）。
four Correct simply click or press and keep on an empty space on the folder's track record, simply click/tap on Kind by, and click on/tap on Ascending (default) or Descending with the purchase you want. (see screenshot under)
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Some kinds of data files, like JPEG photos, are currently hugely compressed. For those who zip numerous JPEG pics right into a folder, the entire sizing from the folder will be about the same as the original collection of images.
When File Explorer opens, you may land in Brief accessibility. Your usually utilized folders and not long ago employed information are shown there, so you will not should dig via a series of folders to seek out them. Pin your preferred folders to Speedy usage of retain them shut at hand.
In case you have concealed the left navigation pane and would want to allow it to be visible in the File Explorer window, you may present it yet again making use of these ways: Select Start out > File Explorer , or pick out the File Explorer icon in the taskbar.
注意这段代码创建了三个文件流：fin，表示明文形式的原始文件；fout，加密结果文件；crStream，加密流，用来把DES加密的结果转入输出文件fout。增加一个crStream流的好处是不必把结果保存到临时文件或缓冲区。
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These controls contain guidelines that control which folders and file extensions are searchable or indexable.
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