Button function returning user operating system and browser version?

按钮功能返回用户操作系统和浏览器版本吗？

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In addition, the design method of the menu and button function of mobile phone is also introduced.

另外，本文还介绍了手机菜单的设计和手机按键功能的设计方法。

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When a user clicks the button, the search function is invoked.

当用户单击这个按钮时，就会调用搜索函数。

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This protrusion (which is removeable) provides access to a multi-function button, volume controls, power switch and micro-USB port for charging.

ENGADGET

The F900EXR also lets users assign frequently-used options to the new "E-fn" or extended function button for enhanced ease of use.

ENGADGET: Fujifilm launches alphabet soup of point-and-shoot, compact and bridge cameras

Further enhancing ease-of-use are a new Function button that delivers quick access to frequently-used settings and a longer-life battery that claims to deliver around 360 shots before recharging becomes an issue.

ENGADGET: Panasonic's Lumix DMC-FZ50 10 megapixel shooter