chrome浏览器手动调节模拟网速

参考网址：

https://blog.csdn.net/Liberty_yes/article/details/122792457?ops_request_misc=&request_id=&biz_id=102&utm_term=chrom%E6%B5%8F%E8%A7%88%E5%99%A8%E9%99%8D%E4%BD%8E%E7%BD%91%E9%80%9F&utm_medium=distribute.pc_search_result.none-task-blog-2_allsobaiduweb~default-0-122792457.142^v73pc_search_v2,201^v4add_ask,239^v1insert_chatgpt&spm=1018.2226.3001.4187

Fast 3G：表示快的3g网速
Slow 3G：表示慢的3g网速
：表示慢的3g网速
Offline：表示离线，即断网状态