powershell IE 自动化

#
# 打开IE窗口
#
function New-IEWindow
{
param(
[string]$Url,
[switch]$Visible,
[switch]$FullScreen
)
$Global:IEHost = new-object -com “InternetExplorer.Application”
$Global:IEHost.Navigate($Url)

#设置IE可见性和全屏
$Global:IEhost.Visible= $Visible
$Global:IEHost.FullScreen= $FullScreen

}

#
#等待IE加载完毕
#
function Wait-IEReady([int]$TimeoutSeconds=10)
{
$milliseconds=0
$maxMilliseconds = $TimeoutSeconds * 1000
while($Global:IEHost.Busy)
{

if($milliseconds -gt $maxMilliseconds)
{
throw ‘Wait ie ready timeout.’
}
sleep -Milliseconds 100
$milliseconds+=100

}
}

#
# 根据ID,Class,Name,Tag获取HTML元素
#
function Get-HtmlElement ($Id,$Name,$Class,$Tag)
{
if($Id)
{
return $IEHost.Document.getElementById($id)
}
elseif($Name)
{
return $IEHost.Document.getElementsByName($Name)
}
elseif($Class)
{
$IEHost.Document.all | where {$_.className -contains $Class}
}
elseif($Tag)
{
$IEHost.Document.getElementsByTagName($Tag)
}

}

#
#关闭IE窗口
#
function Close-IEWindow
{
$Global:IEHost.quit()
Remove-Variable IEHost -Force
}

#
#设置IE的地址
#
function Navigate-IE($Url)
{
Set-IE -URL $Url
}

#
# 设置IE的地址,或者动作:前进,倒退,刷新
#
function Set-IE
{
param(
[ValidateSet(‘GoBack’, ‘GoForward’,’Refresh’)]
[string]$Action,
[uri]$URL
)

# 动作
switch($Action)
{
(‘GoBack’){ $Global:IEHost.GoBack() }
(‘GoForward’){ $Global:IEHost.GoForward() }
(‘Refresh’){ $Global:IEHost.Refresh() }
}

# 设置IE地址
if( $URL) {
$Global:IEHost.Navigate($URL) }
}

#
# 在IE窗口中执行脚本
#
function Invoke-IEScript($Code,$Language=’Javascript’)
{
if( -not [string]::IsNullOrWhiteSpace($Code))
{
$Global:IEHost.Document.parentWindow.execScript($Code,$Language)
}
}

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