ThislibraryprovidespropertybidigssimilartoQtsigalslotsystem,JavaFx'spropertiesadother.
示例程序：
privateclassModel{valtext=ewObservable("cout:0")privatevarcout=deficremet(){cout+=1text()="cout:"+cout}}objectExampleextedsSimpleSwigApplicatio{privatevalmodel=ewModeldeftop=ewMaiFrame{title="Example"cotets=ewGridPael(2,1){valbutto=ewButto("PressMe!")cotets+=buttovallabel=ewLabel{text=observes(model.text,text_=)}cotets+=labellisteTo(butto)reactios+={caseButtoClicked(_)=>model.icremet()}}}}
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