初学小程序，想根据页面的值该表include加载的页面，代码如下：

<index.js>

Page({

  data: {

    includeSrc: "PublicSysManage.wxml"

  },

<index.wxml>

<view class="content">

  <swiper current="{{item}}" bindchange="changeTab">

    <swiper-item>

      <include src="info.wxml"/>

    </swiper-item>

    <swiper-item>

      <include src="{{includeSrc}}"/>

    </swiper-item>

    <swiper-item>

      <include src="ComInfo.wxml"/>

    </swiper-item>

  </swiper>

</view>

报错Couldn't resolve the Wxml file "{{includeSrc}}" relative to "/pages/index/index.wxml`:0:0`"，求教大佬