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    HRTime\StopWatch::isRunning

    (PECL hrtime >= 0.4.3)

    HRTime\StopWatch::isRunning — 确认测量是否在运行

    说明

    public HRTime\StopWatch::isRunning(): bool

    显示测量是否已经开始。

    参数

    此函数没有参数。

    返回值

    返回 bool 表明测量是否在运行。

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