Udemy的在线学习教程涉及范围广，促销价格便宜，优质学习资源丰富，这些都是优点，不过pc端auto画质翔一般的预载判定和画质自动下降真可以杀程序员祭天了
其实这个强制插件谷歌很多教程，不过学习的时候脑袋不灵光，硬是顶着模糊的画质撑着看了不少时间，突然醒悟，万能的chrome浏览器肯定会有相关插件，一谷歌果然解决了问题，顺手将大佬们的配置分享一下：

安装使用requestly免费版

打开http://www.requestly.in
按着提示install安装此插件即可，免费版即可

针对Udemy自动（auto）按钮的修改配置

将视频播放器原本的auto各个选项强制换成1080p请求，这样就不用管自动144p，也是1080p了，当然，你的本地网络也要符合基本要求，否则会有卡顿的：

[
  {
    "creationDate": 1544862824762,
    "description": "",
    "groupId": "",
    "id": "Replace_1544862824762",
    "name": "udemy",
    "objectType": "rule",
    "pairs": [
      {
        "from": "hls_144",
        "source": {
          "key": "Url",
          "operator": "Contains",
          "value": ""
        },
        "status": "Inactive",
        "to": "hls_1080"
      },
      {
        "from": "hls_720",
        "source": {
          "key": "Url",
          "operator": "Contains",
          "value": ""
        },
        "status": "Inactive",
        "to": "hls_1080"
      },
      {
        "from": "hls_480",
        "source": {
          "key": "Url",
          "operator": "Contains",
          "value": ""
        },
        "status": "Inactive",
        "to": "hls_1080"
      },
      {
        "from": "hls_360",
        "source": {
          "key": "Url",
          "operator": "Contains",
          "value": ""
        },
        "status": "Inactive",
        "to": "hls_1080"
      }
    ],
    "ruleType": "Replace",
    "status": "Active",
    "version": 2
  }
]

或者直接下载现成的配置文档：
udemy.txt

然后上传到requestly插件，就可以了

最后再次感谢大佬们的分享，原文：
https://medium.com/@s_54260/how-to-udemy-always-watch-videos-at-1080p-resolution-20d8f73ffaf1