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")
});