类：PerformanceMeasure

🌐 Class: PerformanceMeasure

• 扩展：<PerformanceEntry>

公开通过 Performance.measure() 方法创建的指标。

🌐 Exposes measures created via the Performance.measure() method.

此类的构造函数不直接暴露给用户。

🌐 The constructor of this class is not exposed to users directly.