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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
                使用 maps 比使用多個不同的變量有明顯優勢。最重要的優勢就是 map 的遍歷功能,這在多個不同變量中是不可能實現的。 另一個支持使用 map 的原因,是它可以創建?`map-get()`?函數以提供友好 API 的功能。比如,思考一下下述 Sass 代碼: ~~~ /// Z-indexes map, gathering all Z layers of the application /// @access private /// @type Map /// @prop {String} key - Layer's name /// @prop {Number} value - Z value mapped to the key $z-indexes: ( 'modal': 5000, 'dropdown': 4000, 'default': 1, 'below': -1, ); /// Get a z-index value from a layer name /// @access public /// @param {String} $layer - Layer’s name /// @return {Number} /// @require $z-indexes @function z($layer) { @return map-get($z-indexes, $layer); } ~~~
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                              哎呀哎呀视频在线观看