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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ## Luminosity **6、屏幕亮度(Luminosity API)** Luminosity API用來屏幕亮度調節,不過目前只有Firefox支持。 當移動設備的亮度傳感器感知外部亮度發生顯著變化時,會觸發devicelight事件。 ``` window.addEventListener('devicelight', function(event) { console.log(event.value + 'lux'); }); ``` 上面代碼表示,devicelight事件的回調函數,接受一個事件對象作為參數。該對象的value屬性就是亮度的流明值。
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                              哎呀哎呀视频在线观看