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秒表下载速度用其他速度格式计算

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我用WebClient.DownloadFile（address，fileName）类下载一个文件 .

我用秒表计算下载速度 .

我的速度计算代码;

Stopwatch stopWatch = new Stopwatch();
stopWatch.Start();
labelSpeed.Text = string.Format("{0} kB/s", (e.BytesReceived / 1024 / stopWatch.Elapsed.TotalSeconds).ToString("0.00"));

我想显示下载速度“b / s，kb / s，mb / s，gb / s等......”格式，但我的代码只提供“kb / s”格式 . 如何显示其他格式？

c# webclient stopwatch webclient-download

2 回答

  • 0

    好的，我现在只是用这种方式解决了我的问题;

    Stopwatch stopWatch = new Stopwatch();
stopWatch.Start();

string downloadSpeed;

downloadSpeed = string.Format("{0} B/s", (e.BytesReceived / stopWatch.Elapsed.TotalSeconds).ToString("0.00"));
if ((e.BytesReceived / stopWatch.Elapsed.TotalSeconds) > 1024)
{ downloadSpeed = string.Format("{0} KB/s", (e.BytesReceived / 1024 / stopWatch.Elapsed.TotalSeconds).ToString("0.00")); }
if ((e.BytesReceived / 1024 / stopWatch.Elapsed.TotalSeconds) > 1024)
{ downloadSpeed = string.Format("{0} MB/s", (e.BytesReceived / 1024 / 1024 / stopWatch.Elapsed.TotalSeconds).ToString("0.00")); }
if ((e.BytesReceived / 1024 / 1024 / stopWatch.Elapsed.TotalSeconds) > 1024)
{ downloadSpeed = string.Format("{0} GB/s", (e.BytesReceived / 1024 / 1024 / 1024 / stopWatch.Elapsed.TotalSeconds).ToString("0.00")); }

labelSpeed.Text = downloadSpeed;
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  • 1

    您可以使用枚举来避免克隆显示的代码 . 这是一个例子：

    enum ByteMassFactor { B = 1, KB = 1024, MB = 1024 * 1024, GB = 1024 * 1024 * 1024 }

void Main()
{
    var byteCount = 2048;

    foreach (var mass in Enum.GetValues(typeof(ByteMassFactor)).Cast<ByteMassFactor>().Reverse())
        if (byteCount / (int)mass >= 1)
        {
            Console.WriteLine($"{byteCount / (int)mass} {mass}");
            break;
        }
}

    输出：

    2 KB
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