在字符串中搜索特定单词

问题描述

我正在努力编写一个简单的报告脚本。 例如

$report.FullFormattedMessage = "This is the deployment test for Servername for Stackoverflow in datacenter onTV"
$report.FullFormattedMessage.GetType()

IsPublic IsSerial Name                                     BaseType                                                                                                        
-------- -------- ----                                     --------                                                                                                        
True     True     String                                   System.Object  

现在我想挑选一些 certians 的话，比如......

$dc = should be the 'onTV'
$srv = should be the 'Servername'
$srv = $report.FullFormattedMessage.contains... or -match ?? something like this?

.split()[] 的技巧对我不起作用，因为 $report 有时看起来不同。我怎么能这样做？

解决方法

哦，好的，我找到了一个解决方案，我不知道这是否最好......但我告诉你：

$lines = $report.FullFormattedMessage.split() 

   $dc= ForEach ($line in $lines){
    
    $line | Where-Object {$_ -match "onTV*"} 
    }
    
    $srv= ForEach ($line in $lines){
    
    $line | Where-Object {$_ -match "Server*"} 
    }

,

我可能会做类似的事情

$report.FullFormattedMessage = "This is the deployment test for Servername for Stackoverflow in datacenter onTV"
$dc  = if ($report.FullFormattedMessage -match '\b(onTV)\b') { $Matches[1] }        # see details 1
$srv = if ($report.FullFormattedMessage -match '\b(Server[\w]*)') { $Matches[1] }   # see details 2

# $dc   --> "onTV"
# $srv  --> "Servername"

正则表达式详细信息 1

\b             Assert position at a word boundary
(              Match the regular expression below and capture its match into backreference number 1
   onTV        Match the characters “onTV” literally
)             
\b             Assert position at a word boundary

正则表达式详细信息 2

\b             Assert position at a word boundary
(              Match the regular expression below and capture its match into backreference number 1
   Server      Match the characters “Server” literally
   [\w]        Match a single character that is a “word character” (letters,digits,etc.)
      *        Between zero and unlimited times,as many times as possible,giving back as needed (greedy)
)