思路就是：找出父節點的所有子節點的checked的屬性設定成與父節點一致即可

我是利用jquery實現，看看是否符合你的要求

<scriptsrc="../lib/jquery.js"type="text/javascript"></script>

<scriptsrc="../jquery.treeview.js"type="text/javascript"></script>

<scripttype="text/javascript">

$(function(){

$("#tree").treeview();

$("input[name="ids"]").click(function(){

varcheckedValue=this.checked;

$(this).parent("li").find("input[name="ids"]").attr("checked",checkedValue);

});

})

</script>

<ulid="tree">

<li>

<inputtype="checkbox"name="ids"id="test"/>

<spanclass="folder">test1</span>

<ul>

<li>

<inputtype="checkbox"name="ids"/>

<spanclass="folder">test11</span>

</li>

</ul>

<ul>

<li>

<inputtype="checkbox"name="ids"/>

<spanclass="folder">test12</span>

<ul>

<li>

<inputtype="checkbox"name="ids"/>

<spanclass="folder">test121</span>

</li>

</ul>

</li>

</ul>

</li>

</ul>