PowerShell 2.0 ConvertFrom-Json和ConvertTo-Json实现

function ConvertTo-Json20([object] $item){    add-type -assembly system.web.extensions    $ps_js=new-object system.web.script.serialization.javascriptSerializer    return $ps_js.Serialize($item)}function ConvertFrom-Json20([object] $item){     add-type -assembly system.web.extensions    $ps_js=new-object system.web.script.serialization.javascriptSerializer    #The comma operator is the array construction operator in PowerShell    return ,$ps_js.DeserializeObject($item)}