blocks|key|727176|text|Read-Host是从用户获取字符串输入的简单选项。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|727177|$name+=+Read-Host+'What+is+your+username?'|code-block|syntax|javascript|727178|要隐藏密码，可以使用以下命令：|727179|$pass+=+Read-Host+'What+is+your+password?'+-AsSecureString|727180|要将密码转换为纯文本，请执行以下操作：|727181|[Runtime.InteropServices.Marshal]::PtrToStringAuto(
++++[Runtime.InteropServices.Marshal]::SecureStringToBSTR($pass))|727182|至于$host.UI.Prompt()返回的类型，如果您在@Christian的评论中发布的链接上运行代码，就可以通过管道将其传递给Get-Member+(例如，$results+%7C+gm)来查找返回类型。结果是一个字典，其中键是提示符中使用的FieldDescription对象的名称。要访问链接示例中第一个提示符的结果，可以输入：$results['String+Field']。|727183|要在不调用方法的情况下访问信息，请去掉括号：|727184|PS>+$Host.UI.Prompt

MemberType++++++++++:+Method
OverloadDefinitions+:+{System.Collections.Generic.Dictionary[string,psobject]+Pr
++++++++++++++++++++ompt(string+caption,+string+message,+System.Collections.Ob
++++++++++++++++++++jectModel.Collection[System.Management.Automation.Host.Fie
++++++++++++++++++++ldDescription]+descriptions)}
TypeNameOfValue+++++:+System.Management.Automation.PSMethod
Value+++++++++++++++:+System.Collections.Generic.Dictionary[string,psobject]+Pro
++++++++++++++++++++mpt(string+caption,+string+message,+System.Collections.Obj
++++++++++++++++++++ectModel.Collection[System.Management.Automation.Host.Fiel
++++++++++++++++++++dDescription]+descriptions)
Name++++++++++++++++:+Prompt
IsInstance++++++++++:+True|727185|$Host.UI.Prompt.OverloadDefinitions将给出该方法的定义。每个定义都显示为<Return+Type>+<Method+Name>(<Parameters>)。|727186|entityMap|0|LINK|mutability|MUTABLE|url|http://technet.microsoft.com/en-us/library/hh849945.aspx|1|http://technet.microsoft.com/en-us/library/hh849928.aspx^0|0|9|0|9|0|0|0|0|0|0|0|2|H|1U|A|29|D|3E|G|4N|O|1U|A|1|0|0|0|0|Z|1H|15|0^^$0|@$1|2|3|4|5|6|7|1A|8|@$9|1B|A|1C|B|C]]|D|@$9|1D|A|1E|1|1F]]|E|$]]|$1|F|3|G|5|H|7|1G|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|1H|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|1I|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|1J|8|@]|D|@]|E|$]]|$1|Q|3|R|5|H|7|1K|8|@]|D|@]|E|$I|J]]|$1|S|3|T|5|6|7|1L|8|@$9|1M|A|1N|B|C]|$9|1O|A|1P|B|C]|$9|1Q|A|1R|B|C]|$9|1S|A|1T|B|C]|$9|1U|A|1V|B|C]]|D|@$9|1W|A|1X|1|1Y]]|E|$]]|$1|U|3|V|5|6|7|1Z|8|@]|D|@]|E|$]]|$1|W|3|X|5|H|7|20|8|@]|D|@]|E|$I|J]]|$1|Y|3|Z|5|6|7|21|8|@$9|22|A|23|B|C]|$9|24|A|25|B|C]]|D|@]|E|$]]|$1|10|3|-4|5|6|7|26|8|@]|D|@]|E|$]]]|11|$12|$5|13|14|15|E|$16|17]]|18|$5|13|14|15|E|$16|19]]]]

<a href="http://technet.microsoft.com/en-us/library/hh849945.aspx" rel="noreferrer"><code>Read-Host</code></a> is a simple option for getting string input from a user.

<pre><code>$name = Read-Host 'What is your username?'
</code></pre>

To hide passwords you can use:

<pre><code>$pass = Read-Host 'What is your password?' -AsSecureString
</code></pre>

To convert the password to plain text:

<pre><code>[Runtime.InteropServices.Marshal]::PtrToStringAuto(
 [Runtime.InteropServices.Marshal]::SecureStringToBSTR($pass))
</code></pre>

As for the type returned by <code>$host.UI.Prompt()</code>, if you run the code at the link posted in @Christian's comment, you can find out the return type by piping it to <a href="http://technet.microsoft.com/en-us/library/hh849928.aspx" rel="noreferrer"><code>Get-Member</code></a> (for example, <code>$results | gm</code>). The result is a Dictionary where the key is the name of a <code>FieldDescription</code> object used in the prompt. To access the result for the first prompt in the linked example you would type: <code>$results['String Field']</code>.

To access information without invoking a method, leave the parentheses off:

<pre><code>PS&gt; $Host.UI.Prompt

MemberType : Method
OverloadDefinitions : {System.Collections.Generic.Dictionary[string,psobject] Pr
 ompt(string caption, string message, System.Collections.Ob
 jectModel.Collection[System.Management.Automation.Host.Fie
 ldDescription] descriptions)}
TypeNameOfValue : System.Management.Automation.PSMethod
Value : System.Collections.Generic.Dictionary[string,psobject] Pro
 mpt(string caption, string message, System.Collections.Obj
 ectModel.Collection[System.Management.Automation.Host.Fiel
 dDescription] descriptions)
Name : Prompt
IsInstance : True
</code></pre>

<code>$Host.UI.Prompt.OverloadDefinitions</code> will give you the definition(s) of the method. Each definition displays as <code>&lt;Return Type&gt; &lt;Method Name&gt;(&lt;Parameters&gt;)</code>.

blocks|key|727353|text|使用参数绑定绝对是解决这个问题的方法。它不仅编写起来非常快(只需将[Parameter(Mandatory=$true)]添加到您的强制参数之上)，而且它也是您以后不会讨厌自己的唯一选择。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|727354|更多信息如下：|727355|[Console]::ReadLine被PowerShell的FxCop规则明确禁止。为什么？因为它只适用于PowerShell.exe，而不适用于PowerShell+ISE、PowerGUI等。|727356|简单地说，Read-Host是一种糟糕的形式。Read-Host无法控制地停止脚本以提示用户，这意味着您永远不能拥有包含使用Read-Host的脚本的其他脚本。|727357|您正在尝试请求参数。|727358|您应该使用[Parameter(Mandatory=$true)]属性并正确键入来请求参数。|727359|如果您在[SecureString]上使用此选项，它将提示输入密码字段。如果您在凭据类型([Management.Automation.PSCredential])上使用此选项，则会弹出凭据对话框(如果参数不在那里)。字符串只会变成一个普通的老式文本框。如果将HelpMessage添加到参数属性(即[Parameter(Mandatory+=+$true,+HelpMessage+=+'New+User+Credentials')])，则它将成为提示的帮助文本。|727360|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/FxCop|1|https://technet.microsoft.com/en-us/library/dd315244.aspx|2|http://software.dell.com/products/powergui-freeware/|3|http://technet.microsoft.com/en-us/library/hh849945.aspx^0|X|S|0|0|0|J|V|5|0|2D|3|1|2H|8|2|0|5|9|3|0|0|5|S|0|4|E|19|10|46|1W|0^^$0|@$1|2|3|4|5|6|7|15|8|@$9|16|A|17|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|18|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|19|8|@$9|1A|A|1B|B|C]]|D|@$9|1C|A|1D|1|1E]|$9|1F|A|1G|1|1H]|$9|1I|A|1J|1|1K]]|E|$]]|$1|J|3|K|5|6|7|1L|8|@]|D|@$9|1M|A|1N|1|1O]]|E|$]]|$1|L|3|M|5|6|7|1P|8|@]|D|@]|E|$]]|$1|N|3|O|5|6|7|1Q|8|@$9|1R|A|1S|B|C]]|D|@]|E|$]]|$1|P|3|Q|5|6|7|1T|8|@$9|1U|A|1V|B|C]|$9|1W|A|1X|B|C]|$9|1Y|A|1Z|B|C]]|D|@]|E|$]]|$1|R|3|-4|5|6|7|20|8|@]|D|@]|E|$]]]|S|$T|$5|U|V|W|E|$X|Y]]|Z|$5|U|V|W|E|$X|10]]|11|$5|U|V|W|E|$X|12]]|13|$5|U|V|W|E|$X|14]]]]

Using parameter binding is definitely the way to go here. Not only is it very quick to write (just add <code>[Parameter(Mandatory=$true)]</code> above your mandatory parameters), but it's also the only option that you won't hate yourself for later.

More below:

<code>[Console]::ReadLine</code> is explicitly forbidden by the <a href="http://en.wikipedia.org/wiki/FxCop" rel="noreferrer">FxCop</a> rules for PowerShell. Why? Because it only works in PowerShell.exe, not PowerShell <a href="https://technet.microsoft.com/en-us/library/dd315244.aspx" rel="noreferrer">ISE</a>, <a href="http://software.dell.com/products/powergui-freeware/" rel="noreferrer">PowerGUI</a>, etc.

<a href="http://technet.microsoft.com/en-us/library/hh849945.aspx" rel="noreferrer">Read-Host</a> is, quite simply, bad form. Read-Host uncontrollably stops the script to prompt the user, which means that you can never have another script that includes the script that uses Read-Host.

You're trying to ask for parameters.

You should use the <code>[Parameter(Mandatory=$true)]</code> attribute, and correct typing, to ask for the parameters.

If you use this on a <code>[SecureString]</code>, it will prompt for a password field. If you use this on a Credential type, (<code>[Management.Automation.PSCredential]</code>), the credentials dialog will pop up, if the parameter isn't there. A string will just become a plain old text box. If you add a HelpMessage to the parameter attribute (that is, <code>[Parameter(Mandatory = $true, HelpMessage = 'New User Credentials')]</code>) then it will become help text for the prompt.

blocks|key|510986|text|或者，也可以将其添加为脚本参数，作为脚本执行的一部分输入|type|unstyled|depth|inlineStyleRanges|entityRanges|data|510987|+param(
++++++[Parameter(Mandatory+=+$True,valueFromPipeline=$true)][String]+$value1,
++++++[Parameter(Mandatory+=+$True,valueFromPipeline=$true)][String]+$value2
++++++)|code-block|syntax|javascript|510988|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

As an alternative, you could add it as a script parameter for input as part of script execution

<pre><code> param(
 [Parameter(Mandatory = $True,valueFromPipeline=$true)][String] $value1,
 [Parameter(Mandatory = $True,valueFromPipeline=$true)][String] $value2
 )
</code></pre>

I want to prompt the user for a series of inputs, including a password and a filename.

I have an example of using <code>host.ui.prompt</code>, which seems sensible, but I can't understand the return.

Is there a better way to get user input in PowerShell?

Prompt for user input in PowerShell

我希望提示用户输入一系列信息，包括密码和文件名。我有一个使用host.ui.prompt的例子，这似乎是合理的，但我不能理解返回。有没有更好的方法在PowerShell中获取用户输入？

问在PowerShell中提示用户输入
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