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）。

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To unzip an individual file or folder, open up the zipped folder, then drag the file or folder from the zipped folder to a whole new locale.

B) Click/tap on Day modified, and click/tap on an accessible day assortment to choose (dot) which file day modified array you only want A part of search engine results.​

In Windows, you work with zipped files and folders in the identical way that you work with uncompressed information and folders. Merge many information into one zipped folder to extra easily share a group of files.

As you key in the Lookup Box, Windows Research will routinely commence a simple look for from the index by default to match your typed text with folder names, files names, the contents of documents, and file Homes. It's going to then Show the search results in File Explorer.

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C# 面向对象，运行时支持对象方向。 C# 需要垃圾回收，运行时提供跟踪垃圾回收器。 库（以及应用堆栈）将这些功能塑造成概念和对象模型，使开发人员能够在直观的工作流中高效编写算法。

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可以安装不同的运行时。 请参阅选择正确的运行时一节，了解每个运行时包含的内容。

黑客和密码专家破解加密文件的办法主要有两个，第一是搜索密文是否有重复现象，第二是用暴力破解法获得密钥。首先我们考虑一下初始向量如何防止重复现象，然后再探讨一下防止暴力破解的关键问题。