我正在开发一个简单的Firefox扩展，我想获取选定的文本。我试过这个:varWordCount={/*...*/changeSelected:function(){varselectedText=this.getSelection();varwords=this.countWords(selectedText);this.changeStatus(words,"selected");//alert(selectedText);},getSelection:function(e){varfocused_window=document.commandDispatcher.

我正在尝试实现一个简单的CQRS应用程序示例。这是我的“命令”部分的结构:publicinterfaceICommand{}//baseinterfaceforcommandhandlersinterfaceICommandHandler<inTCommand>whereTCommand:ICommand{voidExecute(TCommandcommand);}//exampleofthecommandpublicclassSimpleCommand:ICommand{//someproperties}//exampleoftheSimpleCommandcommand