Select the objects, along with the counter and instances that you want to chart.
选择需要以图表显示的对象、计数器和实例。
Once that’s done, decrement the global counter that counts the number of active event handler instances.
完成此任务后，对全局计数器进行递减操作（该计数器对活动事件处理程序实例进行计数）。
The purpose of the individual instances related to each counter are generally self-explanatory, which helps determine the measurement components.
与每个计数器有关的各个实例的作用通常都是自解释的，这可以帮助决定度量组件。
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