通过powershell复制数据时精确的时间测量

# 定义一个复制文件的函数
function Copy-File {
    param (
        [string]$source,
        [string]$destination
    )
    Copy-Item -Path $source -Destination $destination
}

# 测量复制文件的时间
$source = "C:\path\to\source\file.txt"
$destination = "C:\path\to\destination\file.txt"

$time = Measure-Command { Copy-File -source $source -destination $destination }
Write-Host "复制文件耗时: $($time.TotalSeconds) 秒"

# 导入 .NET 命名空间
Add-Type -TypeDefinition @"
using System;
using System.Diagnostics;

public static class StopwatchHelper {
    public static TimeSpan Measure(Action action) {
        Stopwatch stopwatch = new Stopwatch();
        stopwatch.Start();
        action();
        stopwatch.Stop();
        return stopwatch.Elapsed;
    }
}
"@

# 定义一个复制文件的函数
function Copy-File {
    param (
        [string]$source,
        [string]$destination
    )
    Copy-Item -Path $source -Destination $destination
}

# 测量复制文件的时间
$source = "C:\path\to\source\file.txt"
$destination = "C:\path\to\destination\file.txt"

$timeSpan = [StopwatchHelper]::Measure({ Copy-File -source $source -destination $destination })
Write-Host "复制文件耗时: $($timeSpan.TotalSeconds) 秒"

$source = "C:\path to source\file.txt"
$destination = "C:\path to destination\file.txt"