XUL From Wikipedia, the free encyclopedia Jump to: navigation, search XML User Interface Language (XUL) File extension: .xul MIME type: application/vnd.mozilla.xul+xml Developed by: Mozilla Foundation Type of format: markup language XUL (pronounced zool ([zu:l])), the XML User Interface Language, is an XML user interface markup language developed by the Mozilla project for use in its cross-platform applications, such as Firefox. The only complete implementation of XUL is the Gecko layout engine. XUL relies on multiple existing web standards and technologies, including CSS, JavaScript, and DOM, which makes it relatively easy to learn for people with a background in web programming and design. XUL and web developer documentation is available from the Mozilla Developer Center [1]. XUL has no formal specification or interoperable non-Gecko implementations and therefore may be described as an internal or proprietary language. On the other hand, its implementation (Gecko) is open source and Mozilla provides experimental XULRunner builds to let developers build their applications on top of the Mozilla application framework and XUL in particular. The main benefit of XUL is that it provides a simple and portable definition of common widgets. This reduces the software development effort in a way analogous to the savings offered by 4GL tools. For more information, refer to the Joy of XUL article on developer.mozilla.org. Other user interface markup languages are MXML, Laszlo XML, UIML, and XAML. -- 夫兵者不祥之器物或惡之故有道者不處君子居則貴左用兵則貴右兵者不祥之器非君子 之器不得已而用之恬淡為上勝而不美而美之者是樂殺人夫樂殺人者則不可得志於天下 矣吉事尚左凶事尚右偏將軍居左上將軍居右言以喪禮處之殺人之眾以哀悲泣之戰勝以 喪禮處之道常無名樸雖小天下莫能臣侯王若能守之萬物將自賓天地相合以降甘露民莫 之令而自均始制有名名亦既有夫亦將知止知止 61-224-53-109.dynamic.hinet.net海