如何定义需要海拔的PowerShell功能？

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PowerShell can be extremely useful for a lot of everyday tasks as is, but if you need to tweak some functions with a bit of safety in mind, then how do you define a function so that it requires elevation? Today’s SuperUser Q&A post has the answer to a curious reader’s question.

PowerShell可以对许多日常任务非常有用，但是，如果您需要在调整某些功能时考虑到一点安全性，那么如何定义一个功能以使其需要提升？今天的“超级用户问答”帖子回答了一个好奇的读者的问题。

Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a community-driven grouping of Q&A web sites.

今天的“问答”环节由SuperUser提供，它是Stack Exchange的一个分支，该社区是由社区驱动的Q＆A网站分组。

问题 (The Question)

SuperUser reader Vlastimil wants to know how to define a PowerShell function that requires elevation:

超级用户阅读器Vlastimil想知道如何定义需要提升的PowerShell函数：

Since I cannot find any alternatives to Linux’s sudo elevation command, I have the following question. How do I define a PowerShell function that requires elevation, as in activating a UAC prompt on my Windows 8.1 Pro, 64-bit system? For example, say I run the following function:

由于找不到Linux的sudo海拔命令的替代方案，因此我有以下问题。如何在Windows 8.1 Pro 64位系统上激活UAC提示时定义需要提升的PowerShell功能？例如，假设我运行以下功能：

With the following results:

结果如下：

To be completely clear, if I run PowerShell as “user”, then run the aforementioned function system-check, I want the function to elevate in order to be able to execute the command (I want the UAC prompt to appear).

确切地说，如果我以“用户”身份运行PowerShell，然后运行上述功能system-check ，则我希望该功能升高以能够执行命令(我希望出现UAC提示)。

How do you define a PowerShell function that requires elevation?

如何定义需要提升的PowerShell函数？

答案 (The Answer)

SuperUser contributor Ashton has the answer for us:

超级用户贡献者Ashton为我们提供了答案：

To run a specific command from an elevated window:

要从提升的窗口中运行特定命令：

For example:

例如：

To run a specific script from an elevated window:

要从提升的窗口中运行特定的脚本，请执行以下操作：

To run an entire PowerShell session that prompts the UAC:

要运行提示UAC的整个PowerShell会话，请执行以下操作：

A function to return $True or $False if the current window is running with elevated permissions:

如果当前窗口正在使用提升的权限运行，则返回$ True或$ False的函数：

To ensure a script is only run As Admin, add this to the beginning:

为确保仅以管理员身份运行脚本，请将其添加到开头：

In PowerShell v4.0, the above can be simplified by using a #Requires statement:

在PowerShell v4.0中，可以使用#Requires语句简化上述操作：

Source: Run with Elevated Permissions [SS64.com]

来源： 以高权限运行 [SS64.com]

Have something to add to the explanation? Sound off in the comments. Want to read more answers from other tech-savvy Stack Exchange users? Check out the full discussion thread here.

有什么补充说明吗？在评论中听起来不错。是否想从其他精通Stack Exchange的用户那里获得更多答案？在此处查看完整的讨论线程。