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Original link: https://hsiaofeng.com/archives/206.html This is a study note for personal use. introduce <script src=”https://unpkg.com/vue@3/dist/vue.global.js”></script> template syntax text interpolation <span>Message: </span> const { createApp } = Vue; let test = createApp ({ data(){ return { msg: “Hello” } } }); test.mount(“#app”); property binding Bind one or more tag properties via Vue. <div v-bind:id=”dynamicId”></div> <!– 简写–> <div […]

Original link: https://hsiaofeng.com/archives/204.html #include <iostream> #include <map> typedef unsigned long long ull; using namespace std; map<ull, ull> save; ull F(ull n){ if(save.count(n) != 0) return save[n]; else if(n % 2 == 0) return F(n – 1) + 2; else if(n == 1) return 0; else return F(n – 1) + F(n – 2) – 1;

Original link: https://hsiaofeng.com/archives/201.html Data URLs , ie URLs prefixed with the data: protocol, allow content creators to embed small files into documents. data:[<mediatype>][;base64],<data> The following steps will keep the Data URLs of the SVG file as short as possible. Use Scour to optimize SVG source code. Here I use Inkscape to save as优化的SVG . Generate

Original link: https://hsiaofeng.com/archives/200.html python -m markdown 输入文件.md -f 输出文件.html This article is reproduced from: https://hsiaofeng.com/archives/200.html This site is for inclusion only, and the copyright belongs to the original author.

Original link: https://hsiaofeng.com/archives/200.html python -m markdown 输入文件.md -f 输出文件.html This article is reproduced from: https://hsiaofeng.com/archives/200.html This site is for inclusion only, and the copyright belongs to the original author.

Original link: https://hsiaofeng.com/archives/197.html A memo about the tar command. -c 压缩-x 解压-z 有gzip属性的-f 后跟档案名 tar -czf name.tar.gz path/* tar -xzf name.tar.gz This article is reproduced from: https://hsiaofeng.com/archives/197.html This site is for inclusion only, and the copyright belongs to the original author.

Original link: https://hsiaofeng.com/archives/195.html Packaging the certificate on the origin server cd /etc/letsencrypt tar zcf letsencrypt.tar.gz archive live renewal Release the certificate on the new server cd /etc/letsencrypt tar zxf letsencrypt.tar.gz This article is reproduced from: https://hsiaofeng.com/archives/195.html This site is for inclusion only, and the copyright belongs to the original author.

Original link: https://hsiaofeng.com/archives/193.html It is found that every time I connect to GitHub, an SSH error occurs because the ssh-agent is not running. Append the following configuration to ~/.profile or ~/.bashrc file. env=~/.ssh/agent.env agent_load_env () { test -f “$env” && . “$env” >| /dev/null ; } agent_start () { (umask 077; ssh-agent >| “$env”) .

Original link: https://hsiaofeng.com/archives/192.html screen ls * | entr bash build.sh To leave Screen, press Ctrl+A followed by Ctrl+D . Go back to Screen, use screen -ls screen -r xxx This article is reproduced from: https://hsiaofeng.com/archives/192.html This site is for inclusion only, and the copyright belongs to the original author.

Original link: https://hsiaofeng.com/archives/191.html use case ffmpeg -i “t.jpg” -compression_level 0 -quality 80 -preset photo “[email protected]” Batch: for /f “tokens=1 delims=.” %%a in (‘dir /B *.png’) do ffmpeg -y -i “%%a.png” -compression_level 0 -preset picture “%%a.webp” for /f “tokens=1 delims=.” %%a in (‘dir /B *.jpg’) do ffmpeg -y -i “%%a.jpg” -compression_level 0 -preset picture “%%a.webp” official

Original link: https://hsiaofeng.com/archives/190.html This is a tutorial for coping with the middle school exam. It aims to quickly learn some basic Python operations and cope with the exam. Take a simple math problem as an example: A bottle of Coke costs 3 yuan, and Xiao Ming bought 2 bottles. How much does he have to

Original link: https://hsiaofeng.com/archives/188.html A friend lost his ID card, so he started to look for things. Gua information The time starts from the hexagram, the 25th day of the April 25th day of the Renyin year. ~ main hexagram mutual hexagram change your mind body ☷ Kun soil ☳ Shock Wood ☵ Kanshui use ☰

Original link: https://hsiaofeng.com/archives/186.html connect to the server, prompt ssh: Could not resolve hostname xxx.xyz: \262\273\326\252\265\300\325\342\321\371\265\304\326\367\273\372\241\243 Preliminary conversion with Python print(“\262\273\326\252\265\300\325\342\321\371\265\304\326\367\273\372\241\243″) get string ²»ÖªµÀÕâÑùµÄÖ÷»ú¡£ Check the table below, it belongs to “symbol code”, it may be ISO-8859-1 code now. Store it in ISO-8859-1 encoding with VSCode, then open it with GBK, and finally get the string