Ajax异步获取html数据中包含js方法无效的解决方法

function data() {    var tab = $("#dic")    $.ajax({      url: '../demo.ashx?method=GetList',      data: {},      dataType: 'json',      type: 'post',      async: true,      success: function (data) {        //console.log(data);        var parentStr = '';        $.each(data, function (i, item) {          //console.log(item.text);                    parentStr += "<div class='pull-right'> <a class='morechange' href='javascript:;' style='visibility: visible;'>更多+</a></div>"});        tab.html(parentStr);      }    })  }

$('.morechange').click(function(){  alert("弹出")});