ClassIn download button link API instruction
main purpose：
Place on the school page，Download the latest ClassIn client to the user without having to manually update the link address.
Results the preview：
ClassIn MacOS Intel processor Download button
ClassIn MacOS Apple silicon Download button
Mobile Download Address QR Code: 
Instructions for use：
Copy the following code to the <body> tag of your site page, where <a> link is replaced with your download button, and please ensure that the <a> tag [data-id] attribute is consistent
<a data-id="classInDownLoad_auto">classIn Auto-judge download button</a><br />
<a data-id="classInDownLoad_win7">ClassIn win7 Download button</a><br />
<a data-id="classInDownLoad_macOS">ClassIn macOS Download button</a><br />
<a data-id="classInDownLoad_iOS">classIn iOS download button</a><br />
<a data-id="classInDownLoad_android">classIn Android download button</a><br />
Mobile Download Address QR Code: <br /><img data-id="classInImage_mdqr" alt="classIn mobile download">
<script type="text/javascript" charset="utf-8" src="https://www.eeo.cn/sysshare/custom/seturl_classindownload.js"></script>