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<!-- 洪卫 shw2018 add 2019.08.28 -->
        <script type="text/javascript">
            var OriginTitile = document.title,
                st;
            document.addEventListener("visibilitychange", function () {
                document.hidden ? (document.title = "看不见我
标签：,windowWidth,title,write,width,var,document	

来源： https://www.cnblogs.com/zenggaozheng/p/12583973.html