网址收藏

FreeMP3 ： http://freemp3y.com/

DataTables：https://datatables.net/

解决死锁之路：https://www.aneasystone.com/archives/2018/04/solving-dead-locks-four.html

七天学会Node.js:http://nqdeng.github.io/7-days-nodejs/#1.4

数字时钟屏幕保护：https://fliqlo.com/

freecodecamp:https://www.freecodecamp.org/

codepen: https://codepen.io/

scrimba: https://scrimba.com/

excel:https://docs.laravel-excel.com/3.1/getting-started/installation.html

debug-css:https://zaydek.github.io/debug.css （

<a href='javascript:/* debug.css | MIT License | zaydek.github.com/debug.css */ if (!("is_debugging" in window)) { is_debugging = false; var debug_el = document.createElement("style"); debug_el.append(document.createTextNode(`*:not(path):not(g) { color: hsla(210, 100%, 100%, 0.9) !important; background: hsla(210, 100%, 50%, 0.5) !important; outline: solid 0.25rem hsla(210, 100%, 100%, 0.5) !important; box-shadow: none !important; filter: none !important; }`)); } function enable_debugger() { if (!is_debugging) { document.head.appendChild(debug_el); is_debugging = true; } } function disable_debugger() { if (is_debugging) { document.head.removeChild(debug_el); is_debugging = false; } } !is_debugging ? enable_debugger() : disable_debugger();'>Debug</a>

）

w3schools:https://www.w3schools.com/

night owl ：https://nightowl.kramser.xyz/

图片素材：https://unsplash.com/search/photos/tennis  https://www.pexels.com/search/tennis/  https://stocksnap.io/  https://www.pexels.com/@creative-vix