$url = "https://yryz.net/Docker for Windows Installer.exe"
$output = "C:\a.exe"
$start_time = Get-Date

$wc = New-Object System.Net.WebClient
$wc.DownloadFile($url, $output)

来源：https://yryz.net/post/powershell-file-download.html