问跟进“自定义机器复制进度栏( quest1on in PowerShell)”中答案中的代码

EN

Get-Help -Name about_Jobs;

Get-Help -Name Start-Process -Full;

# Define a ScriptBlock that does some "work"
# NOTE: ScriptBlock should output an integer that indicates percentage complete
$ScriptBlock = {
    1..100 | % { $_; Start-Sleep -Milliseconds (Get-Random -Minimum 5 -Maximum 200); };
    }
# Kick off several jobs (with unique names)
1..3 | % { Start-Job -ScriptBlock $ScriptBlock -Name ('Complex Job {0}' -f $_); };

# Display Progress Bars until all jobs are completed
while (($JobList = Get-Job -State Running)) {
    foreach ($Job in $JobList) {
        try {
            # Get the most recent status
            $Percent = (Receive-Job -Job $Job -Keep)[-1];
            Write-Progress -Activity 'Background Jobs' -CurrentOperation $Job.Name -Id $Job.Id -PercentComplete $Percent;
        }
        catch { Write-Verbose -Message ('Couldn''t get percentage completed from: {0}' -f $Job.Id); }
    }
    Start-Sleep -Milliseconds 200;
}