{"id":661,"date":"2025-01-02T22:15:06","date_gmt":"2025-01-02T14:15:06","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=661"},"modified":"2025-01-02T22:15:06","modified_gmt":"2025-01-02T14:15:06","slug":"%e5%9c%a8-javascript-%e4%b8%ad%ef%bc%8c%e5%a6%82%e4%bd%95%e6%8e%a7%e5%88%b6gif-%e5%8a%a8%e7%94%bb%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/01\/02\/%e5%9c%a8-javascript-%e4%b8%ad%ef%bc%8c%e5%a6%82%e4%bd%95%e6%8e%a7%e5%88%b6gif-%e5%8a%a8%e7%94%bb%ef%bc%9f\/","title":{"rendered":"\u5728 JavaScript \u4e2d\uff0c\u5982\u4f55\u63a7\u5236GIF \u52a8\u753b\uff1f"},"content":{"rendered":"\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u5728 JavaScript \u4e2d\uff0c\u76f4\u63a5\u63a7\u5236 GIF \u52a8\u753b\u7684\u64ad\u653e\u884c\u4e3a\uff08\u5982\u6682\u505c\u3001\u7ee7\u7eed\u6216\u9010\u5e27\u64ad\u653e\uff09\u662f\u6709\u4e00\u5b9a\u9650\u5236\u7684\uff0c\u4e0d\u5c11\u4eba\u90fd\u9047\u5230\u8fc7\u8fd9\u79cd\u95ee\u9898\u3002GIF \u52a8\u753b\u901a\u5e38\u662f\u901a\u8fc7\u6d4f\u89c8\u5668\u81ea\u52a8\u5904\u7406\u7684\uff0c\u7f3a\u4e4f\u5bf9\u5176\u9010\u5e27\u548c\u64ad\u653e\u72b6\u6001\u7684\u5185\u7f6e\u63a7\u5236\u3002\u7136\u800c\uff0c\u901a\u8fc7\u4e00\u4e9b\u6280\u5de7\u548c\u5916\u90e8\u5de5\u5177\uff0c\u53ef\u4ee5\u95f4\u63a5\u5730\u5b9e\u73b0 GIF \u52a8\u753b\u7684\u63a7\u5236\uff1a<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u65b9\u6cd5 1\uff1a\u4f7f\u7528 <code>canvas<\/code> \u7ed8\u5236\u548c\u63a7\u5236<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u52a0\u8f7d GIF \u5e76\u89e3\u6790\u5e27<\/strong><br>\u4f7f\u7528\u5e93\uff08\u5982 <a href=\"https:\/\/github.com\/jnordberg\/gif.js\">gif.js<\/a> \u6216 <a href=\"https:\/\/github.com\/rbnlffl\/gifler\">gifler<\/a>\uff09\u89e3\u6790 GIF \u6587\u4ef6\u5e76\u63d0\u53d6\u5e27\u3002<\/li>\n\n\n\n<li><strong>\u7ed8\u5236\u5230 <code>canvas<\/code><\/strong><br>\u89e3\u6790\u51fa\u5e27\u540e\uff0c\u53ef\u4ee5\u5c06\u6bcf\u4e00\u5e27\u7ed8\u5236\u5230 HTML \u7684 <code>&lt;canvas><\/code> \u5143\u7d20\u4e0a\uff0c\u624b\u52a8\u5b9e\u73b0\u64ad\u653e\u63a7\u5236\u3002<\/li>\n\n\n\n<li><strong>\u63a7\u5236\u64ad\u653e<\/strong><br>\u901a\u8fc7\u5b9a\u65f6\u5668\u63a7\u5236\u5e27\u5207\u6362\uff0c\u8fbe\u5230\u64ad\u653e\u3001\u6682\u505c\u6216\u9010\u5e27\u64ad\u653e\u7684\u6548\u679c\u3002 \u793a\u4f8b\u4ee3\u7801\uff08\u4f7f\u7528 <code>gifler<\/code>\uff09\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>   &lt;canvas id=\"canvas\" width=\"500\" height=\"300\"&gt;&lt;\/canvas&gt;\n   &lt;button id=\"play\"&gt;Play&lt;\/button&gt;\n   &lt;button id=\"pause\"&gt;Pause&lt;\/button&gt;\n   &lt;script src=\"https:\/\/cdn.jsdelivr.net\/npm\/gifler\/gifler.min.js\"&gt;&lt;\/script&gt;\n   &lt;script&gt;\n       const canvas = document.getElementById('canvas');\n       const ctx = canvas.getContext('2d');\n       let gifInstance;\n\n       gifler('example.gif').get((aGif) =&gt; {\n           gifInstance = aGif;\n           gifInstance.animateInCanvas(canvas);\n       });\n\n       document.getElementById('play').addEventListener('click', () =&gt; gifInstance.play());\n       document.getElementById('pause').addEventListener('click', () =&gt; gifInstance.stop());\n   &lt;\/script&gt;<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u65b9\u6cd5 2\uff1a\u901a\u8fc7 GIF \u66ff\u4ee3\u56fe\u7247\u5b9e\u73b0\u63a7\u5236<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">GIF \u52a8\u753b\u672c\u8eab\u65e0\u6cd5\u76f4\u63a5\u6682\u505c\uff0c\u4f46\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u66ff\u4ee3\u65b9\u5f0f\u6a21\u62df\u63a7\u5236\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5207\u6362\u5230\u9759\u6001\u56fe\u50cf<\/strong><br>\u5c06 GIF \u66ff\u6362\u4e3a\u67d0\u4e00\u5e27\u7684\u9759\u6001\u56fe\u50cf\uff08\u5982 PNG \u6587\u4ef6\uff09\uff0c\u6765\u6a21\u62df\u6682\u505c\u6548\u679c\u3002<\/li>\n\n\n\n<li><strong>\u91cd\u65b0\u52a0\u8f7d GIF<\/strong><br>\u66ff\u6362 GIF \u7684 <code>src<\/code> \u5c5e\u6027\u4e3a\u76f8\u540c URL\uff0c\u6d4f\u89c8\u5668\u4f1a\u91cd\u65b0\u52a0\u8f7d\u5e76\u4ece\u5934\u64ad\u653e\u52a8\u753b\u3002<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>   &lt;img id=\"gif\" src=\"example.gif\" alt=\"GIF\"&gt;\n   &lt;button id=\"restart\"&gt;Restart&lt;\/button&gt;\n   &lt;script&gt;\n       document.getElementById('restart').addEventListener('click', () =&gt; {\n           const gif = document.getElementById('gif');\n           gif.src = gif.src; \/\/ \u91cd\u65b0\u52a0\u8f7d GIF\n       });\n   &lt;\/script&gt;<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u65b9\u6cd5 3\uff1a\u4f7f\u7528 CSS \u63a7\u5236<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6682\u505c\u52a8\u753b<\/strong><br>GIF \u52a8\u753b\u53ef\u4ee5\u901a\u8fc7 <code>animation-play-state<\/code> \u6682\u505c\uff08\u4ec5\u9002\u7528\u4e8e\u88ab\u8f6c\u5316\u4e3a CSS \u52a8\u753b\u7684\u60c5\u51b5\u4e0b\uff09\u3002<\/li>\n\n\n\n<li><strong>\u5b9e\u73b0\u63a7\u5236<\/strong><br>\u5c06 GIF \u8f6c\u5316\u4e3a\u5e27\u5e8f\u5217\uff0c\u5e76\u7528 CSS \u5b9e\u73b0\u63a7\u5236\u64ad\u653e\u7684\u6548\u679c\u3002<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u6ce8\u610f\u4e8b\u9879<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u9010\u5e27\u64ad\u653e<\/strong><br>\u6d4f\u89c8\u5668\u4e2d\u76f4\u63a5\u5904\u7406 GIF \u7684\u9010\u5e27\u64ad\u653e\u662f\u975e\u5e38\u590d\u6742\u7684\uff0c\u63a8\u8350\u4f7f\u7528\u5e27\u89e3\u6790\u65b9\u5f0f\u3002<\/li>\n\n\n\n<li><strong>\u6027\u80fd\u95ee\u9898<\/strong><br>\u5982\u679c GIF \u52a8\u753b\u8f83\u5927\u6216\u5e27\u6570\u8f83\u591a\uff0c\u4f7f\u7528 <code>canvas<\/code> \u6216\u89e3\u6790\u5de5\u5177\u53ef\u80fd\u4f1a\u589e\u52a0\u6027\u80fd\u5f00\u9500\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u9700\u6c42\u9009\u62e9\u9002\u5408\u7684\u65b9\u5f0f\u6765\u63a7\u5236 GIF \u52a8\u753b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 JavaScript \u4e2d\uff0c\u76f4\u63a5\u63a7\u5236 GIF \u52a8\u753b\u7684\u64ad\u653e\u884c\u4e3a\uff08\u5982\u6682\u505c\u3001\u7ee7\u7eed\u6216\u9010\u5e27\u64ad\u653e\uff09\u662f\u6709\u4e00\u5b9a\u9650\u5236\u7684\uff0c\u4e0d\u5c11\u4eba [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[],"class_list":["post-661","post","type-post","status-publish","format-standard","hentry","category-javascript"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/661","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=661"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/661\/revisions"}],"predecessor-version":[{"id":662,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/661\/revisions\/662"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=661"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=661"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=661"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}