Kezdőlap Felfedezés Súgó
Regisztráció Bejelentkezés
root
/
blog_web
1
0
Másolás 0
Fájlok Problémák 0 Beolvasztási kérések 0 Wiki
Fa: 749ca342c3
Branch-ok Tag-ek
blog_web
/
pages
/
0f6a0ac99b62ede5
/
index.html

index.html 46 KB
Előzmények Nyers

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879 
  1. <!DOCTYPE html>
    2. 

  2. <html lang="zh-CN">
    3. 

  3.   <head>
    4. 

  4.     <meta charset="utf-8">
    5. 

  5.     <meta name="viewport" content="width=device-width,initial-scale=1">
    6. 

  6.     <title>防抖与节流函数 | 彪哥博客</title>
    7. 

  7.     <meta name="generator" content="VuePress 1.9.5">
    8. 

  8.     <link rel="icon" href="/blog/img/favicon.ico">
    9. 

  9.     <meta name="description" content="web前端技术博客,专注web前端学习与总结。JavaScript,js,ES6,TypeScript,vue,React,python,css3,html5,Node,git,github等技术文章。">
    10. 

  10.     <meta name="keywords" content="前端博客,个人技术博客,前端,前端开发,前端框架,web前端,前端面试题,技术文档,学习,面试,JavaScript,js,ES6,TypeScript,vue,python,css3,html5,Node,git,github,markdown">
    11. 

  11.     <meta name="theme-color" content="#11a8cd">
    12. 

  12.     
    13. 

  13.     <link rel="preload" href="/blog/assets/css/0.styles.cf6c3304.css" as="style"><link rel="preload" href="/blog/assets/js/app.b419507c.js" as="script"><link rel="preload" href="/blog/assets/js/2.602aac03.js" as="script"><link rel="preload" href="/blog/assets/js/21.2587b99c.js" as="script"><link rel="prefetch" href="/blog/assets/js/10.05bc42d6.js"><link rel="prefetch" href="/blog/assets/js/100.93782085.js"><link rel="prefetch" href="/blog/assets/js/101.49f33592.js"><link rel="prefetch" href="/blog/assets/js/102.b391aaca.js"><link rel="prefetch" href="/blog/assets/js/103.b5c297df.js"><link rel="prefetch" href="/blog/assets/js/104.1b8956b0.js"><link rel="prefetch" href="/blog/assets/js/105.4af5ed2a.js"><link rel="prefetch" href="/blog/assets/js/106.f5ff0141.js"><link rel="prefetch" href="/blog/assets/js/107.9b0935ed.js"><link rel="prefetch" href="/blog/assets/js/108.a3b3e687.js"><link rel="prefetch" href="/blog/assets/js/109.0faeea62.js"><link rel="prefetch" href="/blog/assets/js/11.803b5050.js"><link rel="prefetch" href="/blog/assets/js/110.05696e77.js"><link rel="prefetch" href="/blog/assets/js/111.33bbfeaf.js"><link rel="prefetch" href="/blog/assets/js/112.cc349461.js"><link rel="prefetch" href="/blog/assets/js/113.ee6a59a5.js"><link rel="prefetch" href="/blog/assets/js/114.837d6a71.js"><link rel="prefetch" href="/blog/assets/js/115.035a54c0.js"><link rel="prefetch" href="/blog/assets/js/116.bffbfdca.js"><link rel="prefetch" href="/blog/assets/js/117.effbf98c.js"><link rel="prefetch" href="/blog/assets/js/118.a2ce28a1.js"><link rel="prefetch" href="/blog/assets/js/119.da6e315d.js"><link rel="prefetch" href="/blog/assets/js/12.68f9aa15.js"><link rel="prefetch" href="/blog/assets/js/120.edc4f23e.js"><link rel="prefetch" href="/blog/assets/js/121.67388947.js"><link rel="prefetch" href="/blog/assets/js/122.0e892f37.js"><link rel="prefetch" href="/blog/assets/js/123.9c12e399.js"><link rel="prefetch" href="/blog/assets/js/124.e265d82a.js"><link rel="prefetch" href="/blog/assets/js/125.07ad81ea.js"><link rel="prefetch" href="/blog/assets/js/126.30be0256.js"><link rel="prefetch" href="/blog/assets/js/127.daf6f659.js"><link rel="prefetch" href="/blog/assets/js/128.c3aa5522.js"><link rel="prefetch" href="/blog/assets/js/129.60c2ac70.js"><link rel="prefetch" href="/blog/assets/js/13.b2f4726e.js"><link rel="prefetch" href="/blog/assets/js/130.283b36c2.js"><link rel="prefetch" href="/blog/assets/js/131.36fd29f9.js"><link rel="prefetch" href="/blog/assets/js/132.aa486fed.js"><link rel="prefetch" href="/blog/assets/js/133.5244b658.js"><link rel="prefetch" href="/blog/assets/js/134.5d546ce7.js"><link rel="prefetch" href="/blog/assets/js/135.efe5189e.js"><link rel="prefetch" href="/blog/assets/js/136.0e15e278.js"><link rel="prefetch" href="/blog/assets/js/137.9ed0177b.js"><link rel="prefetch" href="/blog/assets/js/138.0b8bc204.js"><link rel="prefetch" href="/blog/assets/js/139.cc005358.js"><link rel="prefetch" href="/blog/assets/js/14.8dc92978.js"><link rel="prefetch" href="/blog/assets/js/140.bc32a870.js"><link rel="prefetch" href="/blog/assets/js/141.acfd1af2.js"><link rel="prefetch" href="/blog/assets/js/142.4acb4dd6.js"><link rel="prefetch" href="/blog/assets/js/143.8182807e.js"><link rel="prefetch" href="/blog/assets/js/144.20a6c974.js"><link rel="prefetch" href="/blog/assets/js/145.f3a9911c.js"><link rel="prefetch" href="/blog/assets/js/146.3ed86675.js"><link rel="prefetch" href="/blog/assets/js/147.fa9b3898.js"><link rel="prefetch" href="/blog/assets/js/148.f498d3e2.js"><link rel="prefetch" href="/blog/assets/js/149.3fe441c6.js"><link rel="prefetch" href="/blog/assets/js/15.c32eb5e6.js"><link rel="prefetch" href="/blog/assets/js/150.6d73379d.js"><link rel="prefetch" href="/blog/assets/js/151.4916058e.js"><link rel="prefetch" href="/blog/assets/js/152.42f788ce.js"><link rel="prefetch" href="/blog/assets/js/153.57ac80e4.js"><link rel="prefetch" href="/blog/assets/js/154.46b3a2b3.js"><link rel="prefetch" href="/blog/assets/js/155.f16ed794.js"><link rel="prefetch" href="/blog/assets/js/156.7004ac8c.js"><link rel="prefetch" href="/blog/assets/js/157.54029a82.js"><link rel="prefetch" href="/blog/assets/js/158.d1a36e56.js"><link rel="prefetch" href="/blog/assets/js/159.e3aba89f.js"><link rel="prefetch" href="/blog/assets/js/16.ce96f674.js"><link rel="prefetch" href="/blog/assets/js/160.da511416.js"><link rel="prefetch" href="/blog/assets/js/161.e4fc79bf.js"><link rel="prefetch" href="/blog/assets/js/162.f214074e.js"><link rel="prefetch" href="/blog/assets/js/163.4bf1ce2d.js"><link rel="prefetch" href="/blog/assets/js/164.50c2a26a.js"><link rel="prefetch" href="/blog/assets/js/165.3fadd30d.js"><link rel="prefetch" href="/blog/assets/js/166.b46fceba.js"><link rel="prefetch" href="/blog/assets/js/167.6c6747d8.js"><link rel="prefetch" href="/blog/assets/js/168.87ccce63.js"><link rel="prefetch" href="/blog/assets/js/169.e1e1c58b.js"><link rel="prefetch" href="/blog/assets/js/17.a693fe7f.js"><link rel="prefetch" href="/blog/assets/js/170.755abdff.js"><link rel="prefetch" href="/blog/assets/js/171.a6b69067.js"><link rel="prefetch" href="/blog/assets/js/172.52c10d67.js"><link rel="prefetch" href="/blog/assets/js/173.568ec26d.js"><link rel="prefetch" href="/blog/assets/js/174.f6ff5c51.js"><link rel="prefetch" href="/blog/assets/js/175.f2d646a9.js"><link rel="prefetch" href="/blog/assets/js/176.2fd93f9c.js"><link rel="prefetch" href="/blog/assets/js/177.fc5683f6.js"><link rel="prefetch" href="/blog/assets/js/178.432e7e1f.js"><link rel="prefetch" href="/blog/assets/js/179.e63b01b0.js"><link rel="prefetch" href="/blog/assets/js/18.6df3c873.js"><link rel="prefetch" href="/blog/assets/js/180.7a136172.js"><link rel="prefetch" href="/blog/assets/js/181.6e78e56b.js"><link rel="prefetch" href="/blog/assets/js/182.73d2f94a.js"><link rel="prefetch" href="/blog/assets/js/183.dce8f42f.js"><link rel="prefetch" href="/blog/assets/js/184.94ec7685.js"><link rel="prefetch" href="/blog/assets/js/185.c3561080.js"><link rel="prefetch" href="/blog/assets/js/186.63b6c4b4.js"><link rel="prefetch" href="/blog/assets/js/187.b1ca4046.js"><link rel="prefetch" href="/blog/assets/js/188.6525cd10.js"><link rel="prefetch" href="/blog/assets/js/189.fdd57a16.js"><link rel="prefetch" href="/blog/assets/js/19.6ffd68ce.js"><link rel="prefetch" href="/blog/assets/js/190.8d9ac4f5.js"><link rel="prefetch" href="/blog/assets/js/191.f19beada.js"><link rel="prefetch" href="/blog/assets/js/192.bcd02302.js"><link rel="prefetch" href="/blog/assets/js/193.05afb721.js"><link rel="prefetch" href="/blog/assets/js/194.698e74d2.js"><link rel="prefetch" href="/blog/assets/js/195.70ee23b9.js"><link rel="prefetch" href="/blog/assets/js/196.14c12f32.js"><link rel="prefetch" href="/blog/assets/js/197.52e07cb7.js"><link rel="prefetch" href="/blog/assets/js/198.6312a976.js"><link rel="prefetch" href="/blog/assets/js/199.600b8211.js"><link rel="prefetch" href="/blog/assets/js/20.d994b814.js"><link rel="prefetch" href="/blog/assets/js/200.1658389e.js"><link rel="prefetch" href="/blog/assets/js/201.f2ecc5d4.js"><link rel="prefetch" href="/blog/assets/js/202.05a5bb1c.js"><link rel="prefetch" href="/blog/assets/js/203.893b83ad.js"><link rel="prefetch" href="/blog/assets/js/204.a90c3691.js"><link rel="prefetch" href="/blog/assets/js/205.d82fb971.js"><link rel="prefetch" href="/blog/assets/js/206.00e0b021.js"><link rel="prefetch" href="/blog/assets/js/207.a5dbb279.js"><link rel="prefetch" href="/blog/assets/js/208.d15bb006.js"><link rel="prefetch" href="/blog/assets/js/209.00d63e46.js"><link rel="prefetch" href="/blog/assets/js/210.b256d7b8.js"><link rel="prefetch" href="/blog/assets/js/211.be264f59.js"><link rel="prefetch" href="/blog/assets/js/212.9956352d.js"><link rel="prefetch" href="/blog/assets/js/213.6144a981.js"><link rel="prefetch" href="/blog/assets/js/214.926fcb0b.js"><link rel="prefetch" href="/blog/assets/js/215.19148b26.js"><link rel="prefetch" href="/blog/assets/js/216.f56e94aa.js"><link rel="prefetch" href="/blog/assets/js/217.c5a75265.js"><link rel="prefetch" href="/blog/assets/js/218.1d08fa09.js"><link rel="prefetch" href="/blog/assets/js/219.11d14310.js"><link rel="prefetch" href="/blog/assets/js/22.cbb873e2.js"><link rel="prefetch" href="/blog/assets/js/220.31c10a26.js"><link rel="prefetch" href="/blog/assets/js/221.b95f8a68.js"><link rel="prefetch" href="/blog/assets/js/222.79b831b9.js"><link rel="prefetch" href="/blog/assets/js/223.23d684a8.js"><link rel="prefetch" href="/blog/assets/js/224.86b7a46d.js"><link rel="prefetch" href="/blog/assets/js/225.ba05abd3.js"><link rel="prefetch" href="/blog/assets/js/226.759b748e.js"><link rel="prefetch" href="/blog/assets/js/227.c26a7240.js"><link rel="prefetch" href="/blog/assets/js/228.de29829d.js"><link rel="prefetch" href="/blog/assets/js/229.83cf7341.js"><link rel="prefetch" href="/blog/assets/js/23.3392ec01.js"><link rel="prefetch" href="/blog/assets/js/230.d239ed00.js"><link rel="prefetch" href="/blog/assets/js/231.ddfd0758.js"><link rel="prefetch" href="/blog/assets/js/232.6b57acfb.js"><link rel="prefetch" href="/blog/assets/js/233.a104a750.js"><link rel="prefetch" href="/blog/assets/js/234.3d041b0e.js"><link rel="prefetch" href="/blog/assets/js/235.9e19c5d0.js"><link rel="prefetch" href="/blog/assets/js/236.9f300061.js"><link rel="prefetch" href="/blog/assets/js/237.9fb8d4bd.js"><link rel="prefetch" href="/blog/assets/js/238.ceec05fc.js"><link rel="prefetch" href="/blog/assets/js/24.736495d8.js"><link rel="prefetch" href="/blog/assets/js/25.8f5cf322.js"><link rel="prefetch" href="/blog/assets/js/26.67d8ecd5.js"><link rel="prefetch" href="/blog/assets/js/27.05800199.js"><link rel="prefetch" href="/blog/assets/js/28.72a4cebd.js"><link rel="prefetch" href="/blog/assets/js/29.f8d2f7c1.js"><link rel="prefetch" href="/blog/assets/js/3.aec45124.js"><link rel="prefetch" href="/blog/assets/js/30.0ac25def.js"><link rel="prefetch" href="/blog/assets/js/31.4d385616.js"><link rel="prefetch" href="/blog/assets/js/32.ab6922e1.js"><link rel="prefetch" href="/blog/assets/js/33.22aedb73.js"><link rel="prefetch" href="/blog/assets/js/34.1176b400.js"><link rel="prefetch" href="/blog/assets/js/35.d4d05428.js"><link rel="prefetch" href="/blog/assets/js/36.6dd0dde1.js"><link rel="prefetch" href="/blog/assets/js/37.4af0c50a.js"><link rel="prefetch" href="/blog/assets/js/38.1a98317a.js"><link rel="prefetch" href="/blog/assets/js/39.8383d231.js"><link rel="prefetch" href="/blog/assets/js/4.6a499ed7.js"><link rel="prefetch" href="/blog/assets/js/40.ea1ea46b.js"><link rel="prefetch" href="/blog/assets/js/41.29846640.js"><link rel="prefetch" href="/blog/assets/js/42.9c906181.js"><link rel="prefetch" href="/blog/assets/js/43.344bd56a.js"><link rel="prefetch" href="/blog/assets/js/44.e23af589.js"><link rel="prefetch" href="/blog/assets/js/45.fa09e088.js"><link rel="prefetch" href="/blog/assets/js/46.ddf18f6d.js"><link rel="prefetch" href="/blog/assets/js/47.593a3a96.js"><link rel="prefetch" href="/blog/assets/js/48.fb21c024.js"><link rel="prefetch" href="/blog/assets/js/49.5bb86e0c.js"><link rel="prefetch" href="/blog/assets/js/5.48f0d794.js"><link rel="prefetch" href="/blog/assets/js/50.0fb55bed.js"><link rel="prefetch" href="/blog/assets/js/51.a38b4abd.js"><link rel="prefetch" href="/blog/assets/js/52.70f6922c.js"><link rel="prefetch" href="/blog/assets/js/53.c7e04159.js"><link rel="prefetch" href="/blog/assets/js/54.ff09ad12.js"><link rel="prefetch" href="/blog/assets/js/55.57d17d47.js"><link rel="prefetch" href="/blog/assets/js/56.a58b3cc3.js"><link rel="prefetch" href="/blog/assets/js/57.9de5f95b.js"><link rel="prefetch" href="/blog/assets/js/58.d15857bf.js"><link rel="prefetch" href="/blog/assets/js/59.ff3f0900.js"><link rel="prefetch" href="/blog/assets/js/6.1505523f.js"><link rel="prefetch" href="/blog/assets/js/60.bc9edb0a.js"><link rel="prefetch" href="/blog/assets/js/61.ec369f58.js"><link rel="prefetch" href="/blog/assets/js/62.75c1dd19.js"><link rel="prefetch" href="/blog/assets/js/63.a932b576.js"><link rel="prefetch" href="/blog/assets/js/64.d821c8d4.js"><link rel="prefetch" href="/blog/assets/js/65.c48ce70a.js"><link rel="prefetch" href="/blog/assets/js/66.6fc46ec0.js"><link rel="prefetch" href="/blog/assets/js/67.5a70400c.js"><link rel="prefetch" href="/blog/assets/js/68.6a172c1e.js"><link rel="prefetch" href="/blog/assets/js/69.d878fdd4.js"><link rel="prefetch" href="/blog/assets/js/7.b38bde58.js"><link rel="prefetch" href="/blog/assets/js/70.61fcea39.js"><link rel="prefetch" href="/blog/assets/js/71.b4f867d8.js"><link rel="prefetch" href="/blog/assets/js/72.d6eafa00.js"><link rel="prefetch" href="/blog/assets/js/73.7937e89b.js"><link rel="prefetch" href="/blog/assets/js/74.3ff087d7.js"><link rel="prefetch" href="/blog/assets/js/75.97ca5f60.js"><link rel="prefetch" href="/blog/assets/js/76.ece1fc97.js"><link rel="prefetch" href="/blog/assets/js/77.95cdf309.js"><link rel="prefetch" href="/blog/assets/js/78.da225d8a.js"><link rel="prefetch" href="/blog/assets/js/79.ae629400.js"><link rel="prefetch" href="/blog/assets/js/8.f710ef8c.js"><link rel="prefetch" href="/blog/assets/js/80.cf6d2811.js"><link rel="prefetch" href="/blog/assets/js/81.6c5fdca6.js"><link rel="prefetch" href="/blog/assets/js/82.245ed394.js"><link rel="prefetch" href="/blog/assets/js/83.4b549b0f.js"><link rel="prefetch" href="/blog/assets/js/84.17cebe69.js"><link rel="prefetch" href="/blog/assets/js/85.b1179a10.js"><link rel="prefetch" href="/blog/assets/js/86.ad526400.js"><link rel="prefetch" href="/blog/assets/js/87.2eef9fa1.js"><link rel="prefetch" href="/blog/assets/js/88.92f778ed.js"><link rel="prefetch" href="/blog/assets/js/89.efe59f09.js"><link rel="prefetch" href="/blog/assets/js/9.bf9d8b8d.js"><link rel="prefetch" href="/blog/assets/js/90.26e610ca.js"><link rel="prefetch" href="/blog/assets/js/91.f78cb514.js"><link rel="prefetch" href="/blog/assets/js/92.d7983929.js"><link rel="prefetch" href="/blog/assets/js/93.20272a60.js"><link rel="prefetch" href="/blog/assets/js/94.245150bc.js"><link rel="prefetch" href="/blog/assets/js/95.6f0e48c2.js"><link rel="prefetch" href="/blog/assets/js/96.02cf7f8b.js"><link rel="prefetch" href="/blog/assets/js/97.a9438771.js"><link rel="prefetch" href="/blog/assets/js/98.12762ccb.js"><link rel="prefetch" href="/blog/assets/js/99.ddbea38c.js">
    14. 

  14.     <link rel="stylesheet" href="/blog/assets/css/0.styles.cf6c3304.css">
    15. 

  15.   </head>
    16. 

  16.   <body class="theme-mode-light">
    17. 

  17.     <div id="app" data-server-rendered="true"><div class="theme-container sidebar-open have-rightmenu"><header class="navbar blur"><div title="目录" class="sidebar-button"><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" role="img" viewBox="0 0 448 512" class="icon"><path fill="currentColor" d="M436 124H12c-6.627 0-12-5.373-12-12V80c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12z"></path></svg></div> <a href="/blog/" class="home-link router-link-active"><img src="/blog/img/logo.png" alt="彪哥博客" class="logo"> <span class="site-name can-hide">彪哥博客</span></a> <div class="links"><div class="search-box"><input aria-label="Search" autocomplete="off" spellcheck="false" value=""> <!----></div> <nav class="nav-links can-hide"><div class="nav-item"><a href="/blog/" class="nav-link">首页</a></div><div class="nav-item"><a href="http://fseller.com" target="_blank" rel="noopener noreferrer" class="nav-link external">
    18. 

  18.   个人游戏网站
    19. 

  19.   <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></div><div class="nav-item"><div class="dropdown-wrapper"><button type="button" aria-label="前端" class="dropdown-title"><a href="/blog/web/" class="link-title">前端</a> <span class="title" style="display:none;">前端</span> <span class="arrow right"></span></button> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><h4>前端文章</h4> <ul class="dropdown-subitem-wrapper"><li class="dropdown-subitem"><a href="/blog/pages/8143cc480faf9a11/" class="nav-link">JavaScript</a></li></ul></li><li class="dropdown-item"><h4>学习笔记</h4> <ul class="dropdown-subitem-wrapper"><li class="dropdown-subitem"><a href="/blog/note/javascript/" class="nav-link">《JavaScript教程》</a></li><li class="dropdown-subitem"><a href="/blog/note/js/" class="nav-link">《JavaScript高级程序设计》</a></li><li class="dropdown-subitem"><a href="/blog/note/es6/" class="nav-link">《ES6 教程》</a></li><li class="dropdown-subitem"><a href="/blog/note/vue/" class="nav-link">《Vue》</a></li><li class="dropdown-subitem"><a href="/blog/note/react/" class="nav-link">《React》</a></li><li class="dropdown-subitem"><a href="/blog/note/typescript-axios/" class="nav-link">《TypeScript 从零实现 axios》</a></li><li class="dropdown-subitem"><a href="/blog/note/git/" class="nav-link">《Git》</a></li><li class="dropdown-subitem"><a href="/blog/pages/51afd6/" class="nav-link">TypeScript</a></li><li class="dropdown-subitem"><a href="/blog/pages/4643cd/" class="nav-link">JS设计模式总结</a></li></ul></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><button type="button" aria-label="页面" class="dropdown-title"><a href="/blog/ui/" class="link-title">页面</a> <span class="title" style="display:none;">页面</span> <span class="arrow right"></span></button> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/blog/pages/8309a5b876fc95e3/" class="nav-link">HTML</a></li><li class="dropdown-item"><!----> <a href="/blog/pages/0a83b083bdf257cb/" class="nav-link">CSS</a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><button type="button" aria-label="技术" class="dropdown-title"><a href="/blog/technology/" class="link-title">技术</a> <span class="title" style="display:none;">技术</span> <span class="arrow right"></span></button> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/blog/pages/9a7ee40fc232253e/" class="nav-link">技术文档</a></li><li class="dropdown-item"><!----> <a href="/blog/pages/4c778760be26d8b3/" class="nav-link">GitHub技巧</a></li><li class="dropdown-item"><!----> <a href="/blog/pages/117708e0af7f0bd9/" class="nav-link">Nodejs</a></li><li class="dropdown-item"><!----> <a href="/blog/pages/41f87d890d0a02af/" class="nav-link">博客搭建</a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><button type="button" aria-label="更多" class="dropdown-title"><a href="/blog/more/" class="link-title">更多</a> <span class="title" style="display:none;">更多</span> <span class="arrow right"></span></button> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/blog/pages/f2a556/" class="nav-link">学习</a></li><li class="dropdown-item"><!----> <a href="/blog/pages/aea6571b7a8bae86/" class="nav-link">面试</a></li><li class="dropdown-item"><!----> <a href="/blog/pages/2d615df9a36a98ed/" class="nav-link">心情杂货</a></li><li class="dropdown-item"><!----> <a href="/blog/pages/baaa02/" class="nav-link">实用技巧</a></li><li class="dropdown-item"><!----> <a href="/blog/friends/" class="nav-link">友情链接</a></li></ul></div></div><div class="nav-item"><a href="/blog/about/" class="nav-link">关于</a></div><div class="nav-item"><a href="/blog/pages/beb6c0bd8a66cea6/" class="nav-link">收藏</a></div><div class="nav-item"><div class="dropdown-wrapper"><button type="button" aria-label="索引" class="dropdown-title"><a href="/blog/archives/" class="link-title">索引</a> <span class="title" style="display:none;">索引</span> <span class="arrow right"></span></button> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/blog/categories/" class="nav-link">分类</a></li><li class="dropdown-item"><!----> <a href="/blog/tags/" class="nav-link">标签</a></li><li class="dropdown-item"><!----> <a href="/blog/archives/" class="nav-link">归档</a></li></ul></div></div> <a href="https://github.com/heBody/blog" target="_blank" rel="noopener noreferrer" class="repo-link">
    20. 

  20.     GitHub
    21. 

  21.     <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></nav></div></header> <div class="sidebar-mask"></div> <div class="sidebar-hover-trigger"></div> <aside class="sidebar" style="display:none;"><div class="blogger"><img src="https://fastly.jsdelivr.net/gh/xugaoyi/image_store/blog/20200103123203.jpg"> <div class="blogger-info"><h3>彪哥</h3> <span>爱好前端</span></div></div> <nav class="nav-links"><div class="nav-item"><a href="/blog/" class="nav-link">首页</a></div><div class="nav-item"><a href="http://fseller.com" target="_blank" rel="noopener noreferrer" class="nav-link external">
    22. 

  22.   个人游戏网站
    23. 

  23.   <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></div><div class="nav-item"><div class="dropdown-wrapper"><button type="button" aria-label="前端" class="dropdown-title"><a href="/blog/web/" class="link-title">前端</a> <span class="title" style="display:none;">前端</span> <span class="arrow right"></span></button> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><h4>前端文章</h4> <ul class="dropdown-subitem-wrapper"><li class="dropdown-subitem"><a href="/blog/pages/8143cc480faf9a11/" class="nav-link">JavaScript</a></li></ul></li><li class="dropdown-item"><h4>学习笔记</h4> <ul class="dropdown-subitem-wrapper"><li class="dropdown-subitem"><a href="/blog/note/javascript/" class="nav-link">《JavaScript教程》</a></li><li class="dropdown-subitem"><a href="/blog/note/js/" class="nav-link">《JavaScript高级程序设计》</a></li><li class="dropdown-subitem"><a href="/blog/note/es6/" class="nav-link">《ES6 教程》</a></li><li class="dropdown-subitem"><a href="/blog/note/vue/" class="nav-link">《Vue》</a></li><li class="dropdown-subitem"><a href="/blog/note/react/" class="nav-link">《React》</a></li><li class="dropdown-subitem"><a href="/blog/note/typescript-axios/" class="nav-link">《TypeScript 从零实现 axios》</a></li><li class="dropdown-subitem"><a href="/blog/note/git/" class="nav-link">《Git》</a></li><li class="dropdown-subitem"><a href="/blog/pages/51afd6/" class="nav-link">TypeScript</a></li><li class="dropdown-subitem"><a href="/blog/pages/4643cd/" class="nav-link">JS设计模式总结</a></li></ul></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><button type="button" aria-label="页面" class="dropdown-title"><a href="/blog/ui/" class="link-title">页面</a> <span class="title" style="display:none;">页面</span> <span class="arrow right"></span></button> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/blog/pages/8309a5b876fc95e3/" class="nav-link">HTML</a></li><li class="dropdown-item"><!----> <a href="/blog/pages/0a83b083bdf257cb/" class="nav-link">CSS</a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><button type="button" aria-label="技术" class="dropdown-title"><a href="/blog/technology/" class="link-title">技术</a> <span class="title" style="display:none;">技术</span> <span class="arrow right"></span></button> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/blog/pages/9a7ee40fc232253e/" class="nav-link">技术文档</a></li><li class="dropdown-item"><!----> <a href="/blog/pages/4c778760be26d8b3/" class="nav-link">GitHub技巧</a></li><li class="dropdown-item"><!----> <a href="/blog/pages/117708e0af7f0bd9/" class="nav-link">Nodejs</a></li><li class="dropdown-item"><!----> <a href="/blog/pages/41f87d890d0a02af/" class="nav-link">博客搭建</a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><button type="button" aria-label="更多" class="dropdown-title"><a href="/blog/more/" class="link-title">更多</a> <span class="title" style="display:none;">更多</span> <span class="arrow right"></span></button> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/blog/pages/f2a556/" class="nav-link">学习</a></li><li class="dropdown-item"><!----> <a href="/blog/pages/aea6571b7a8bae86/" class="nav-link">面试</a></li><li class="dropdown-item"><!----> <a href="/blog/pages/2d615df9a36a98ed/" class="nav-link">心情杂货</a></li><li class="dropdown-item"><!----> <a href="/blog/pages/baaa02/" class="nav-link">实用技巧</a></li><li class="dropdown-item"><!----> <a href="/blog/friends/" class="nav-link">友情链接</a></li></ul></div></div><div class="nav-item"><a href="/blog/about/" class="nav-link">关于</a></div><div class="nav-item"><a href="/blog/pages/beb6c0bd8a66cea6/" class="nav-link">收藏</a></div><div class="nav-item"><div class="dropdown-wrapper"><button type="button" aria-label="索引" class="dropdown-title"><a href="/blog/archives/" class="link-title">索引</a> <span class="title" style="display:none;">索引</span> <span class="arrow right"></span></button> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/blog/categories/" class="nav-link">分类</a></li><li class="dropdown-item"><!----> <a href="/blog/tags/" class="nav-link">标签</a></li><li class="dropdown-item"><!----> <a href="/blog/archives/" class="nav-link">归档</a></li></ul></div></div> <a href="https://github.com/heBody/blog" target="_blank" rel="noopener noreferrer" class="repo-link">
    24. 

  24.     GitHub
    25. 

  25.     <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></nav>  <ul class="sidebar-links"><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading open"><span>JavaScript文章</span> <span class="arrow down"></span></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/blog/pages/a61298/" class="sidebar-link">33个非常实用的JavaScript一行代码</a></li><li><a href="/blog/pages/8143cc480faf9a11/" class="sidebar-link">new命令原理</a></li><li><a href="/blog/pages/b1af5cb8996363c5/" class="sidebar-link">ES5面向对象</a></li><li><a href="/blog/pages/1f4123be6f45abcd/" class="sidebar-link">ES6面向对象</a></li><li><a href="/blog/pages/e808fba1fa8fbab2/" class="sidebar-link">多种数组去重性能对比</a></li><li><a href="/blog/pages/40b4db2d38ba85f2/" class="sidebar-link">JS随机打乱数组</a></li><li><a href="/blog/pages/40f623be692cf8bc/" class="sidebar-link">判断是否为移动端浏览器</a></li><li><a href="/blog/pages/f1acb712033ac8da/" class="sidebar-link">将一维数组按指定长度转为二维数组</a></li><li><a href="/blog/pages/0f6a0ac99b62ede5/" aria-current="page" class="active sidebar-link">防抖与节流函数</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header level2"><a href="/blog/pages/0f6a0ac99b62ede5/#防抖函数" class="sidebar-link">防抖函数</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header level3"><a href="/blog/pages/0f6a0ac99b62ede5/#封装" class="sidebar-link">封装</a></li></ul></li><li class="sidebar-sub-header level2"><a href="/blog/pages/0f6a0ac99b62ede5/#节流函数" class="sidebar-link">节流函数</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header level3"><a href="/blog/pages/0f6a0ac99b62ede5/#封装-2" class="sidebar-link">封装</a></li></ul></li><li class="sidebar-sub-header level2"><a href="/blog/pages/0f6a0ac99b62ede5/#应用场景" class="sidebar-link">应用场景</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header level3"><a href="/blog/pages/0f6a0ac99b62ede5/#防抖应用场景" class="sidebar-link">防抖应用场景</a></li><li class="sidebar-sub-header level3"><a href="/blog/pages/0f6a0ac99b62ede5/#节流的应用场景" class="sidebar-link">节流的应用场景</a></li></ul></li><li class="sidebar-sub-header level2"><a href="/blog/pages/0f6a0ac99b62ede5/#示例" class="sidebar-link">示例</a></li></ul></li><li><a href="/blog/pages/7a91be2d502346ce/" class="sidebar-link">JS获取和修改url参数</a></li><li><a href="/blog/pages/fd4a16d56b83c1bc/" class="sidebar-link">比typeof运算符更准确的类型判断</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>三级目录</span> <span class="arrow right"></span></p> <!----></section></li></ul></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>学习笔记</span> <span class="arrow right"></span></p> <!----></section></li></ul> </aside> <div><main class="page"><div class="theme-vdoing-wrapper "><div class="articleInfo-wrap" data-v-06225672><div class="articleInfo" data-v-06225672><ul class="breadcrumbs" data-v-06225672><li data-v-06225672><a href="/blog/" title="首页" class="iconfont icon-home router-link-active" data-v-06225672></a></li> <li data-v-06225672><a href="/blog/web/#前端" data-v-06225672>前端</a></li><li data-v-06225672><a href="/blog/web/#JavaScript文章" data-v-06225672>JavaScript文章</a></li></ul> <div class="info" data-v-06225672><div title="作者" class="author iconfont icon-touxiang" data-v-06225672><a href="https://github.com/heBody" target="_blank" title="作者" class="beLink" data-v-06225672>heBody</a></div> <div title="创建时间" class="date iconfont icon-riqi" data-v-06225672><a href="javascript:;" data-v-06225672>2020-02-29</a></div> <!----></div></div></div> <!----> <div class="content-wrapper"><div class="right-menu-wrapper"><div class="right-menu-margin"><div class="right-menu-title">目录</div> <div class="right-menu-content"></div></div></div> <h1><img src="data:image/png;base64,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">防抖与节流函数<!----></h1>  <div class="theme-vdoing-content content__default"><h1 id="防抖与节流函数"><a href="#防抖与节流函数" class="header-anchor">#</a> 防抖与节流函数</h1> <p>防抖和节流的作用都是在高频事件中防止函数被多次调用，是一种性能优化的方案。</p> <p>区别在于，防抖函数只会在高频事件结束后n毫秒调用一次函数，节流函数会在高频事件触发过程当中每隔n毫秒调用一次函数。</p> <h2 id="防抖函数"><a href="#防抖函数" class="header-anchor">#</a> 防抖函数</h2> <p>触发高频事件后一段时间（wait）只会执行一次函数，如果指定时间（wait）内高频事件再次被触发，则重新计算时间。</p> <h3 id="封装"><a href="#封装" class="header-anchor">#</a> 封装</h3> <div class="language-js line-numbers-mode"><pre class="language-js"><code><span class="token comment">// 防抖函数</span>
    26. 

  26. <span class="token keyword">function</span> <span class="token function">debounce</span><span class="token punctuation">(</span><span class="token parameter">func<span class="token punctuation">,</span> wait</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    27. 

  27.     <span class="token keyword">let</span> timeout <span class="token operator">=</span> <span class="token keyword">null</span><span class="token punctuation">;</span>
    28. 

  28.     <span class="token keyword">return</span> <span class="token keyword">function</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    29. 

  29.         <span class="token keyword">let</span> context <span class="token operator">=</span> <span class="token keyword">this</span><span class="token punctuation">;</span>
    30. 

  30.         <span class="token keyword">let</span> args <span class="token operator">=</span> arguments<span class="token punctuation">;</span>
    31. 

  31.         <span class="token keyword">if</span> <span class="token punctuation">(</span>timeout<span class="token punctuation">)</span> <span class="token function">clearTimeout</span><span class="token punctuation">(</span>timeout<span class="token punctuation">)</span><span class="token punctuation">;</span>
    32. 

  32.         timeout <span class="token operator">=</span> <span class="token function">setTimeout</span><span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    33. 

  33.             <span class="token function">func</span><span class="token punctuation">.</span><span class="token function">apply</span><span class="token punctuation">(</span>context<span class="token punctuation">,</span> args<span class="token punctuation">)</span>
    34. 

  34.         <span class="token punctuation">}</span><span class="token punctuation">,</span> wait<span class="token punctuation">)</span><span class="token punctuation">;</span>
    35. 

  35.     <span class="token punctuation">}</span>
    36. 

  36. <span class="token punctuation">}</span>
    37. 

  37. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br></div></div><h2 id="节流函数"><a href="#节流函数" class="header-anchor">#</a> 节流函数</h2> <p>规定在一个单位时间内，只能触发一次函数。如果这个单位时间内触发多次函数，只有一次生效</p> <h3 id="封装-2"><a href="#封装-2" class="header-anchor">#</a> 封装</h3> <div class="language-js line-numbers-mode"><pre class="language-js"><code><span class="token comment">// 节流函数</span>
    38. 

  38. <span class="token keyword">function</span> <span class="token function">throttle</span><span class="token punctuation">(</span><span class="token parameter">func<span class="token punctuation">,</span> wait</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    39. 

  39.     <span class="token keyword">let</span> timeout <span class="token operator">=</span> <span class="token keyword">null</span><span class="token punctuation">;</span>
    40. 

  40.     <span class="token keyword">return</span> <span class="token keyword">function</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    41. 

  41.         <span class="token keyword">let</span> context <span class="token operator">=</span> <span class="token keyword">this</span><span class="token punctuation">;</span>
    42. 

  42.         <span class="token keyword">let</span> args <span class="token operator">=</span> arguments<span class="token punctuation">;</span>
    43. 

  43.         <span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token operator">!</span>timeout<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    44. 

  44.             timeout <span class="token operator">=</span> <span class="token function">setTimeout</span><span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    45. 

  45.                 timeout <span class="token operator">=</span> <span class="token keyword">null</span><span class="token punctuation">;</span>
    46. 

  46.                 <span class="token function">func</span><span class="token punctuation">.</span><span class="token function">apply</span><span class="token punctuation">(</span>context<span class="token punctuation">,</span> args<span class="token punctuation">)</span>
    47. 

  47.             <span class="token punctuation">}</span><span class="token punctuation">,</span> wait<span class="token punctuation">)</span>
    48. 

  48.         <span class="token punctuation">}</span>
    49. 

  49.     <span class="token punctuation">}</span>
    50. 

  50. <span class="token punctuation">}</span>
    51. 

  51. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br></div></div><h2 id="应用场景"><a href="#应用场景" class="header-anchor">#</a> 应用场景</h2> <p>常见的应用场景都是使用高频事件来调用函数的过程当中，比如应用于window对象的resize、scroll事件，拖拽时的mousemove事件，文字输入、自动完成的keyup事件。</p> <h3 id="防抖应用场景"><a href="#防抖应用场景" class="header-anchor">#</a> 防抖应用场景</h3> <ul><li>scroll事件滚动触发事件</li> <li>搜索框输入查询，如果用户一直在输入中，没有必要不停地调用去请求服务端接口，等用户停止输入的时候，再调用，设置一个合适的时间间隔，有效减轻服务端压力。</li> <li>表单验证</li> <li>按钮提交事件。</li> <li>浏览器窗口缩放，resize事件(如窗口停止改变大小之后重新计算布局)等。</li></ul> <h3 id="节流的应用场景"><a href="#节流的应用场景" class="header-anchor">#</a> 节流的应用场景</h3> <ul><li>DOM 元素的拖拽功能实现（mousemove）</li> <li>搜索联想（keyup）</li> <li>计算鼠标移动的距离（mousemove）</li> <li>Canvas 模拟画板功能（mousemove）</li> <li>射击游戏的 mousedown/keydown 事件（单位时间只能发射一颗子弹）</li> <li>监听滚动事件判断是否到页面底部自动加载更多</li></ul> <h2 id="示例"><a href="#示例" class="header-anchor">#</a> 示例</h2> <p data-height="600" data-theme-id="light" data-default-tab="result" data-user="heBody" data-slug-hash="QWbgLMP" data-pen-title="防抖与节流函数" class="codepen" style="height:600px;box-sizing:border-box;display:flex;align-items:center;justify-content:center;border:2px solid;margin:1em 0;padding:1em;"><span>See the Pen <a href="https://codepen.io/heBody/pen/QWbgLMP">
    52. 

  52.   防抖与节流函数</a> by heBody (<a href="https://codepen.io/heBody">@heBody</a>)
    53. 

  53.   on <a href="https://codepen.io">CodePen</a>.</span></p> <script async="async" src="https://static.codepen.io/assets/embed/ei.js"></script></div></div>  <div class="page-edit"><div class="edit-link"><a href="https://github.com/heBody/blog/edit/master/docs/01.前端/25.JavaScript文章/80.防抖与节流函数.md" target="_blank" rel="noopener noreferrer">编辑</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div> <!----> <div class="last-updated"><span class="prefix">上次更新:</span> <span class="time">2022/12/14, 19:36:42</span></div></div> <div class="page-nav-wapper"><div class="page-nav-centre-wrap"><a href="/blog/pages/f1acb712033ac8da/" class="page-nav-centre page-nav-centre-prev"><div class="tooltip">将一维数组按指定长度转为二维数组</div></a> <a href="/blog/pages/7a91be2d502346ce/" class="page-nav-centre page-nav-centre-next"><div class="tooltip">JS获取和修改url参数</div></a></div> <div class="page-nav"><p class="inner"><span class="prev">
    54. 

  54.         ←
    55. 

  55.         <a href="/blog/pages/f1acb712033ac8da/" class="prev">将一维数组按指定长度转为二维数组</a></span> <span class="next"><a href="/blog/pages/7a91be2d502346ce/">JS获取和修改url参数</a>→
    56. 

  56.       </span></p></div></div></div> <div class="article-list"><div class="article-title"><a href="/blog/archives/" class="iconfont icon-bi">最近更新</a></div> <div class="article-wrapper"><dl><dd>01</dd> <dt><a href="/blog/pages/922650/"><div>
    57. 

  57.             Git修改分支名
    58. 

  58.             <!----></div></a> <span class="date">08-11</span></dt></dl><dl><dd>02</dd> <dt><a href="/blog/pages/55f894/"><div>
    59. 

  59.             CSS给table的tbody添加滚动条
    60. 

  60.             <!----></div></a> <span class="date">06-29</span></dt></dl><dl><dd>03</dd> <dt><a href="/blog/pages/829589/"><div>
    61. 

  61.             我做了一个手写春联小网页，祝大家虎年暴富
    62. 

  62.             <span class="title-tag">
    63. 

  63.               原创
    64. 

  64.             </span></div></a> <span class="date">01-28</span></dt></dl> <dl><dd></dd> <dt><a href="/blog/archives/" class="more">更多文章&gt;</a></dt></dl></div></div></main></div> <div class="footer"><div class="icons"><a href="mailto:30363811@qq.com" title="发邮件" target="_blank" class="iconfont icon-youjian"></a><a href="https://github.com/heBody" title="GitHub" target="_blank" class="iconfont icon-github"></a><a href="https://music.163.com/#/playlist?id=755597173" title="听音乐" target="_blank" class="iconfont icon-erji"></a></div> 
    65. 

  65.   Theme by
    66. 

  66.   <a href="https://github.com/xugaoyi/vuepress-theme-vdoing" target="_blank" title="本站主题">Vdoing</a> 
    67. 

  67.     | Copyright © 2019-2022
    68. 

  68.     <span>Evan Xu | <a href="https://github.com/heBody/blob/master/LICENSE" target="_blank">MIT License</a></span></div> <div class="buttons"><div title="返回顶部" class="button blur go-to-top iconfont icon-fanhuidingbu" style="display:none;"></div> <div title="去评论" class="button blur go-to-comment iconfont icon-pinglun" style="display:none;"></div> <div title="主题模式" class="button blur theme-mode-but iconfont icon-zhuti"><ul class="select-box" style="display:none;"><li class="iconfont icon-zidong">
    69. 

  69.           跟随系统
    70. 

  70.         </li><li class="iconfont icon-rijianmoshi">
    71. 

  71.           浅色模式
    72. 

  72.         </li><li class="iconfont icon-yejianmoshi">
    73. 

  73.           深色模式
    74. 

  74.         </li><li class="iconfont icon-yuedu">
    75. 

  75.           阅读模式
    76. 

  76.         </li></ul></div></div> <!----> <!----> <!----></div><div class="global-ui"><div></div></div></div>
    77. 

  77.     <script src="/blog/assets/js/app.b419507c.js" defer></script><script src="/blog/assets/js/2.602aac03.js" defer></script><script src="/blog/assets/js/21.2587b99c.js" defer></script>
    78. 

  78.   </body>
    79. 

  79. </html>
    80.