小工具 视频压缩 https://superuser.com/questions/624563/how-to-resize-a-video-to-make-it-smaller-with-ffmpeg ffmpeg -i input.avi -vf scale="iw/1:ih/2" output.avi 下载视频缩略图 youtube-dl --get-thumbnail [https://youtu.be/4LXLwtqO4zY](https://youtu.be/4LXLwtqO4zY) 查看有哪些字幕 youtube-dl --list-subs [https://youtu.be/rwnS_8weey8](https://youtu.be/rwnS_8weey8) 下载视频保存字幕 youtube-dl --write-srt --sub-lang zh-HK [https://youtu.be/rwnS_8weey8](https://youtu.be/rwnS_8weey8) 视频格式转换 # 无损转化mkv到mp4 for i in *.mkv; do ffmpeg -i "$i" -codec copy "${i%.*}.mp4"; done # 快速转换LRV到mov for i in *.LRV; do ffmpeg -i "$i" -codec copy "${i%.*}.mov"; done # 视频转换成gif, 按比例缩放 ffmpeg -i cube.mov -r 5 -vf scale=640:-1 cube.gif 快捷键 M 标记，卡点 Ctrl + shift +R 全部渲染...

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In Vuepress we can use flowchart plugin to draw flowcharts. Here are some examples which found in this plugin’s site. @flowstart st=>start: Start e=>end: End st->e @flowend @flowstart st=>start: Start e=>end: End st->e @flowend @flowstart process=>operation: Operation e=>end: End process->e @flowend @flowstart process=>operation: Operation e=>end: End process->e @flowend @flowstart process=>inputoutput: Inputoutput e=>end: End process->e @flowend @flowstart process=>inputoutput: Inputoutput e=>end: End process->e @flowend @flowstart process=>subroutine: Subroutine e=>end: End process->e @flowend @flowstart process=>subroutine: Subroutine e=>end: End...

[[toc]] Thank to the author of Using Chart.js with Vue.js [1]. Create a vue component. Change to directory of your vuepress project. For me: cd /Users/mac/Github/way2ml Install chart.js by using this command. npm install chart.js --save Create a Draw.vue file with following contents in directory doc/.vuepress/components/. <template> <div id="app"> <canvas id="planet-chart"></canvas> </div> </template> <script> import Chart from 'chart.js'; import planetChartData from './js/chart-data.js'; export default{ mounted() { this.createChart('planet-chart', this.planetChartData); }, data() { return { planetChartData: planetChartData, } }, methods:{ createChart(chartId, chartData) { const ctx = document....

[[toc]] The year before last, I made a repository called BulkImportToAnki on Github. Until tody, I found there was a issue opened on Dec 22 2018. I’m very sorry for I didn’t notice this, and sorry for I didn’t write any documents about this repository. So this is the reason I write this article. Long long time ago, I got a PDF file， which contains 100 sentences for IELTS from my classmate....

Download the collins English. In install collins English dictionary file for Mac. Thanks to the author of this blog, and the sharing of Mac云课堂. You can download from the links below. Download1 or Download2 Install the dictionary file. Copy the .dictionary file to the folder Dictionaries. After completing, open Dictionary app preferences, and select the dictionary we just installed. Have fun.