从命令行获取视频信息, 输出如下

[Log] -> 执行命令'youtube-dl https://youtu.be/sbz3fOe7rog -F'结果:
[youtube] sbz3fOe7rog: Downloading webpage
[youtube] sbz3fOe7rog: Downloading video info webpage
[info] Available formats for sbz3fOe7rog:
format code  extension  resolution note
249          webm       audio only tiny   59k , opus @ 50k (48000Hz), 1.50MiB
250          webm       audio only tiny   78k , opus @ 70k (48000Hz), 2.00MiB
140          m4a        audio only tiny  129k , m4a_dash container, mp4a.40.2@128k (44100Hz), 3.47MiB
251          webm       audio only tiny  150k , opus @160k (48000Hz), 3.85MiB
278          webm       256x144    144p   95k , webm container, vp9, 15fps, video only, 2.36MiB
160          mp4        256x144    144p  111k , avc1.4d400c, 15fps, video only, 2.95MiB
242          webm       426x240    240p  162k , vp9, 15fps, video only, 2.62MiB
133          mp4        426x240    240p  247k , avc1.4d4015, 15fps, video only, 6.58MiB
18           mp4        512x288    240p  355k , avc1.42001E, mp4a.40.2@ 96k (44100Hz), 9.58MiB (best)

此时 echo -n $? 返回 0

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