1 get-item e:\test\* |format-table @{name="aa";expression={
   $_.name.tostring().split(".")[1]}} 2  3   4  5 get-childitem e:\test\* |select name,@{name="changdu";expression={
   $_.name.length}},lastwritetime |format-table -autosize 6  7   8  9 Get-WmiObject -Class Win32_LogicalDisk -Filter "DriveType=3" -ComputerName . | 10 Format-Table deviceid,@{Label="free(GB)"; Expression={
   $_.freespace/1024/1024/1024}},@{Label="size(GB)"; Expression={
   $_.size/1024/1024/1024}} -AutoSize | Out-String

 

 

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

Hash Table只能add两个属性，一个name，一个value

1 $n =$null2 $n = [pscustomobject]@{3 Name= 'Boe'4 Number = 15 ID = 0076 }7 $n.add("p1","v1")

结果：

1 $states = @{
   "Washington" = "Olympia"; "Oregon" = "Salem"; California = "Sacramento"} 2 $states.Add("Alaska", "Fairbanks") 3 $states.Remove("Alaska") 4 $states.Set_Item("Alaska", "Juneau") 5 $states.Get_Item("Oregon") 6 $states.ContainsKey("Oregon") 7 $states.ContainsValue("Salem") 8 $states | Sort-Object 9 $states.GetEnumerator() | Sort-Object Name10 11 $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

 

1 $hash=$null 2 $hash=@{} 3 $ps = gps 4 foreach($p in $ps) 5 { 6 $hash.add($p.id,$p.processname) 7 } 8  9 $hash.getenumerator()| % {
   $_.name}10 # $hash[0] 或者 $hash.getenumerator()[0] #提示出错

 结果：

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

这个不是Hash Table

1 $ps = gps 2 $hashs = $null 3 $hashs = @() 4 Foreach ($p in $ps) 5     { 6      $hash = ""|Select pid,pname 7      $hash.pid = $p.ID 8      $hash.pname = $p.Processname 9      $hashs += $hash10     }11 12 $hashs[0].pid     13 $hashs.psobject|select -ExpandProperty baseobject

1 $results=@() 2 foreach ($m in $ms) 3 { 4 $result=""|select a,b,c 5 $result.a = $m.a 6 $result.b = $m.b 7 $result.c = $m.c 8 $results += $result 9 }10 $results | export-csv -encoding utf8 -notypeinformation -path c:\perc\result.csv

 

 Example1：

1 $servers="10.4.34.41","10.4.34.40","10.4.34.36"#,"10.4.34.37","10.4.34.39" 2 $results = @()  3 foreach ($c in $servers) 4 { 5 $serverpass="Dell1950" 6 $UserName="Administrator" 7 $Password = ConvertTo-SecureString $serverpass -AsPlainText –Force 8 $cred = New-Object System.Management.Automation.PSCredential($UserName,$Password) 9 $cs = gwmi win32_computersystem -computer $c -Credential $cred10 $sys = gwmi win32_operatingsystem -computer $c -Credential $cred11 12 $result=""|select name,version13 $result.name = $cs.name14 $result.version =$sys.version15 $results +=$result16 }17 $results

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

Example2：

1 $infors = gc E:\Port-Test_htm\ports01.txt 2 $results=@() 3 foreach ($infor in $infors) 4 { 5 $a=$infor.split(",")[0] 6 $b=$infor.split(",")[1] 7 $result=""|select name,port 8 $result.name = $a 9 $result.port = $b10 $results += $result11 }12 $results