命名参数和可选参数是两个比较简单的特性，对于熟悉其他编程语言的开发者来说可选参数并不陌生，为参数提供默认值时就是可选参数：

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）。

These default folders are no more exhibited less than This PC to keep the check out focused on your PC’s drives and network places.

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If you think this Web page needs to be very popular, you should make investments supplemental time in exploring the company as This is certainly suspicious. To get a scaled-down or beginning Internet site a lower rating is often thought of typical.

类型系统提供重要的广度，在某种程度上同样迎合了安全性、描述性、动态性和本机互操作性。 首先，类型系统启用面向对象的编程模型。 它包括类型、（单基类）继承、接口（包括默认方法实现）和虚拟方法调度，为对象方向允许的所有类型分层提供合理的行为。 泛型类型 无处不在，使你能够将类专用于一个或多个类型。

When File Explorer opens, you'll land in Swift obtain. Your usually utilized folders and not long ago applied files are detailed there, so you will not should dig through a series of folders to find them. Pin your favorite folders to Speedy access to hold them shut at hand.

While you key in the Look for Box, Home windows Search will routinely begin a straightforward look for in the index by default to match casper77 your typed textual content with folder names, data files names, the contents of files, and file Attributes. It'll then display the search engine results in File Explorer.

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。

Should you include encrypted files to some zipped folder, they'll be unencrypted if they're unzipped, which could lead to unintentional disclosure of personal or delicate data. For that explanation, we advocate that you just stay away from zipping encrypted information.

更详细的对比示例留待读者在实践中对此进行讨论，并行计算为托管代码在多核环境下的性能优化提供了统一的解决方案，而未来我们会做的更好。

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These controls include things like guidelines that take care of which folders and file extensions are searchable or indexable.

From the Privateness part, clear the Examine containers and select Apply. Now Swift entry will only exhibit your pinned folders. (If you turn them back on, files you Formerly removed from Swift obtain may well casper77 demonstrate up yet again.)