在前后端分离的项目中引入微信JSDK文件

来源：图艺博知识网

  <body>
    <div id="app"></div>
    <!-- built files will be auto injected -->
    <script type="text/javascript">
        var _bdhmProtocol = (("https:" == document.location.protocol) ? " https://" : " http://");
        document.write(decodeURI("%3Cscript src='" + _bdhmProtocol +  type='text/javascript'%3E%3C/script%3E"));
    </script>
  </body>

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