function count() {var zTree = $.fn.zTree.getZTreeObj("classpurview");checkCount = zTree.getCheckedNodes(true);var classpurview = "";for(var i=0;i<checkCount.length;i++) { classpurview += "," + checkCount[i].id}alert(classpurview);}希望本文所述对大家的javascript程序设计有所帮助。