1.当我点击其中一个团队的时候,会赢响上一个元素的内容~~~
代码如下:

<div class="txt-right-bot">
                    <ul class="txt-ul tree"> <!--tree -->
                        <li class="txt-ul-li"><span>成都</span><span class="bot-xz" style="display: none;">选择</span>
                            <ul class="ul_this">
                                <li class="txt-ul-liii">
                                    <span class="btn-aj">团队1</span>
                                    <span class="bot-xz" style="display: block;">选择</span>
                                    <ul class="txt-ul-lii"></ul>
                                </li>
                                <li class="txt-ul-liii">
                                    <span class="btn-aj">团队2</span>
                                    <span class="bot-xz" style="display: block;">选择</span>
                                    <ul class="txt-ul-lii"></ul>
                                </li>
                            </ul>
                        </li>
                    </ul>
                </div>

$(document).ready(function(){
    $('.txt-ul-liii').each(function(){
        var str = ' ';
      $(this).one('click','.btn-aj',function(){
            $.ajax({
                type:'GET',
                url:'ceshi.json',
                dataType:'json',
                success:function(data){
                    $.each(data.luozi,function(i,n){
                    str += '<li class="sc">'+n.email+'</li>'
                })
               $('.txt-ul-lii').append(str)
            }
        })
         return false;
       });
    });
})

本地数据只有2条,第一次点击的时候显示是正常的,第二次就不对了~~会给第一次点击的里面添加请求到数据