Hash Table构建

get-item e:	est* |format-table @{name="aa";expression={$_.name.tostring().split(".")[1]}}

 

get-childitem e:	est* |select name,@{name="changdu";expression={$_.name.length}},lastwritetime |format-table -autosize

 

Get-WmiObject -Class Win32_LogicalDisk -Filter "DriveType=3" -ComputerName . | 
Format-Table deviceid,@{Label="free(GB)"; Expression={$_.freespace/1024/1024/1024}},@{Label="size(GB)"; Expression={$_.size/1024/1024/1024}} -AutoSize | Out-String

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Hash Table只能add两个属性，一个name，一个value

1 $n =$null
2 $n = [pscustomobject]@{
3 Name= 'Boe'
4 Number = 1
5 ID = 007
6 }
7 $n.add("p1","v1")

结果：

$states = @{"Washington" = "Olympia"; "Oregon" = "Salem"; California = "Sacramento"}
$states.Add("Alaska", "Fairbanks")
$states.Remove("Alaska")
$states.Set_Item("Alaska", "Juneau")
$states.Get_Item("Oregon")
$states.ContainsKey("Oregon")
$states.ContainsValue("Salem")
$states | Sort-Object
$states.GetEnumerator() | Sort-Object Name

$states.GetEnumerator() | % {$_.name} 

 结果：  只有 .name和.value 两个属性列，不能再添加其他属性列

$hash=$null
$hash=@{}
$ps = gps
foreach($p in $ps)
{
$hash.add($p.id,$p.processname)
}

$hash.getenumerator()| % {$_.name}
# $hash[0] 或者 $hash.getenumerator()[0] #提示出错

 结果：

===================================================

这个不是Hash Table

$ps = gps
$hashs = $null
$hashs = @()
Foreach ($p in $ps)
    {
     $hash = ""|Select pid,pname
     $hash.pid = $p.ID
     $hash.pname = $p.Processname
     $hashs += $hash
    }

$hashs[0].pid     
$hashs.psobject|select -ExpandProperty baseobject

$results=@()
foreach ($m in $ms)
{
$result=""|select a,b,c
$result.a = $m.a
$result.b = $m.b
$result.c = $m.c
$results += $result
}
$results | export-csv -encoding utf8 -notypeinformation -path c:perc
esult.csv

 Example1：

$servers="10.4.34.41","10.4.34.40","10.4.34.36"#,"10.4.34.37","10.4.34.39"
$results = @() 
foreach ($c in $servers)
{
$serverpass="Dell1950"
$UserName="Administrator"
$Password = ConvertTo-SecureString $serverpass -AsPlainText –Force
$cred = New-Object System.Management.Automation.PSCredential($UserName,$Password)
$cs = gwmi win32_computersystem -computer $c -Credential $cred
$sys = gwmi win32_operatingsystem -computer $c -Credential $cred

$result=""|select name,version
$result.name = $cs.name
$result.version =$sys.version
$results +=$result
}
$results

=====================

Example2：

$infors = gc E:Port-Test_htmports01.txt
$results=@()
foreach ($infor in $infors)
{
$a=$infor.split(",")[0]
$b=$infor.split(",")[1]
$result=""|select name,port
$result.name = $a
$result.port = $b
$results += $result
}
$results