PowerTip of the Day-Accessing Object Properties

原文地址： http://powershell.com/cs/blogs/tips/archive/2010/06/08/accessing-object-properties.aspx 原文： Accessing Object Properties Objects store information in various properties. There are two approaches if you would like to get to the

原文地址：http://powershell.com/cs/blogs/tips/archive/2010/06/08/accessing-object-properties.aspx

原文：

Accessing Object Properties

Objects store information in various properties. There are two approaches if you would like to get to the content of a given property. One is commonly used among developers, the other one among admins. Both will get you the same result. Have a look:

# access PowerShell
$process = Get-Process -id $pid
# output entire object
$process
# read CPU usage only (developer version)
$process.CPU
# read CPU usage only (pipeline version)
$process | Select-Object -expandProperty CPU

翻译：

访问对象属性

一个对象会把很多信息存储到大量的属性当中。如果要访问其内容通常来说有两种方法。一种是在程序员当中最常用的方法，另一种是在管理员当中常用的。两种方法的结果都是一样的：

# 获取PowerShell进程实例
$process = Get-Process -id $pid
# 显示整个对象的信息
$process
# 读取CPU使用率属性 (程序员版本)
$process.CPU
#读取CPU使用率属性 (管道版本)
$process | Select-Object -expandProperty CPU

笔记：

$pid是一个内部保留变量？代表当前powershell运行的实例。（有待验证）

打点访问属性的方法应该是最熟悉不过的了，管道方式然后select-object –expandProperty感觉怪怪的。