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foreword
Recently, I found that the progress bar of the course playback at Xidian could not be dragged. I found a way to realize the progress dragging and the download function by the way.
The first step: come to the picture below
second step
Press F12 to find the console
third step
Come here: http://www.jsons.cn/urlencode/
Paste a lot of copies copied from the above picture into the upper box, click UrlDecode to decode , and get the content in the lower box.
Pay attention to the first line of the decoded content, and the info= block at the end, copy everything after the equal sign.
the fourth step
Format the copied json to get the content as shown in the figure below
Directly use the browser to open the http link behind the mobile to watch the video directly. The Safari browser on my side tested it and it works. Chrome will get an m3u8 file. This file is not what we want. You can handle it yourself.
the fifth step
After opening, you can watch the video, right-click to download and other operations, and the link can also be watched on other devices, no flash is required.
Finish.