css-dsl ：用于CSS框架的DSL 而不是像这样的字符串式，嘈杂的代码， < .div( ^.cls : = ( " panel hidden-xs panel- " + ( if (success) " success " else " default " )), < .div( ^.cls : = " panel-heading " , < .h3(^.cls : = " panel-title " , " Panel title " ) ) ) 编写这样的代码： < .div.panel.hiddenXs( if (success) C .panelSuccess else C .panelDefault, < .div.panelHeading( < .h3.panelTitle( " Panel title " )