js动态修改浏览器title

script标签依据浏览框的失焦获焦进行函数操作
(操作简单放到HTML文件下的head标签下就可以)
<script>
  window.onfocus = function () {
    document.title = '恢复正常了,嘻嘻~';
  };
  window.onblur = function () {
    document.title = '快回来~页面崩溃了';
  };
</script>

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转载自www.cnblogs.com/Front-endGraph/p/11346245.html