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@@ -52,33 +52,27 @@ namespace YSAI.Unility
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/// <summary>
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/// 开关
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/// </summary>
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- private Stopwatch stopwatch;
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+ private ValueStopwatch stopwatch;
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/// <summary>
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/// 开始记录
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/// </summary>
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public void StartRecord()
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{
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- if (stopwatch == null)
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- {
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- stopwatch = new Stopwatch();
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- }
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- stopwatch.Start(); // 开始监视代码运行时间
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+ stopwatch = ValueStopwatch.StartNew(); // 开始监视代码运行时间
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}
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/// <summary>
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/// 停止记录
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/// </summary>
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- /// <returns>时，分，秒，毫秒</returns>
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+ /// <returns>时，分，秒，毫秒，时分秒毫秒</returns>
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public (int hours, int minutes, int seconds, int milliseconds) StopRecord()
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{
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- stopwatch.Stop(); // 停止监视
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- TimeSpan timespan = stopwatch.Elapsed; // 获取当前实例测量得出的总时间
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- int hours = timespan.Hours; // 总小时
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- int minutes = timespan.Minutes; // 总分钟
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- int seconds = timespan.Seconds; // 总秒数
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- int milliseconds = timespan.Milliseconds; // 总毫秒数
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- stopwatch.Restart();//复位
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+ TimeSpan timespan = stopwatch.GetElapsedTime(); // 获取当前实例测量得出的总时间
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+ int hours = Math.Round(timespan.TotalHours).ToInt(); // 总小时
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+ int minutes = Math.Round(timespan.TotalMinutes).ToInt(); // 总分钟
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+ int seconds = Math.Round(timespan.TotalSeconds).ToInt(); // 总秒数
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+ int milliseconds = Math.Ceiling(timespan.TotalMilliseconds).ToInt(); // 总毫秒数
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return (hours, minutes, seconds, milliseconds);
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}
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@@ -94,5 +88,39 @@ namespace YSAI.Unility
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while (stopTime.Elapsed.TotalMilliseconds < time) { }
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stopTime.Stop();
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}
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+
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+ /// <summary>
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+ /// 直接操作底层，性能消耗更小
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+ /// </summary>
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+ internal struct ValueStopwatch
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+ {
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+ private static readonly double TimestampToTicks = TimeSpan.TicksPerSecond / (double)Stopwatch.Frequency;
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+
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+ private readonly long _startTimestamp;
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+
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+ public bool IsActive => _startTimestamp != 0;
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+
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+ private ValueStopwatch(long startTimestamp)
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+ {
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+ _startTimestamp = startTimestamp;
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+ }
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+
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+ public static ValueStopwatch StartNew() => new ValueStopwatch(Stopwatch.GetTimestamp());
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+
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+ public TimeSpan GetElapsedTime()
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+ {
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+ // Start timestamp can't be zero in an initialized ValueStopwatch. It would have to be literally the first thing executed when the machine boots to be 0.
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+ // So it being 0 is a clear indication of default(ValueStopwatch)
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+ if (!IsActive)
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+ {
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+ throw new InvalidOperationException("An uninitialized, or 'default', ValueStopwatch cannot be used to get elapsed time.");
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+ }
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+
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+ var end = Stopwatch.GetTimestamp();
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+ var timestampDelta = end - _startTimestamp;
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+ var ticks = (long)(TimestampToTicks * timestampDelta);
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+ return new TimeSpan(ticks);
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+ }
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+ }
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}
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}
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Shun