有趣的、隱藏的圖
視頻無法播放
- 地址:C:\Windows\System32\drivers\etc,管理員權限記事本打開host文件;
- 最後一行拷進去以下代碼,大概意思時解決dns污染
52.84.246.90 d3c33hcgiwev3.cloudfront.net
52.84.246.252 d3c33hcgiwev3.cloudfront.net
52.84.246.144 d3c33hcgiwev3.cloudfront.net
52.84.246.72 d3c33hcgiwev3.cloudfront.net
52.84.246.106 d3c33hcgiwev3.cloudfront.net
52.84.246.135 d3c33hcgiwev3.cloudfront.net
52.84.246.114 d3c33hcgiwev3.cloudfront.net
52.84.246.90 d3c33hcgiwev3.cloudfront.net
52.84.246.227 d3c33hcgiwev3.cloudfront.net
- 如果host文件不能保存成功,則先把該文件拷貝到別的磁盤,修改保存後再拷回來,覆蓋即可。
- 運行cmd命令,打開dos窗口,執行命令,顯示已成功
ipconfig/flushdns
- 刷新頁面即可。
同步中英文字幕
var video = document.getElementById('c-video_html5_api')
for (var i = 0; i < video.textTracks.length; i++) {
["en", "zh-CN"].indexOf(video.textTracks[i].language) > -1 ? video.textTracks[i].mode = "showing" : video.textTracks[i].mode = "hidden";
}
參考資料:
- https://www.jianshu.com/p/2114fe0d6961
- https://hieast.github.io/2017/11/21/coursera-enable-bilingual-subtitle/