{"id":3218,"date":"2024-11-10T09:20:14","date_gmt":"2024-11-10T01:20:14","guid":{"rendered":"https:\/\/fwq.ai\/blog\/3218\/"},"modified":"2024-11-10T09:20:14","modified_gmt":"2024-11-10T01:20:14","slug":"js%e5%a6%82%e4%bd%95%e8%ae%be%e7%bd%aeimg%e7%9a%84src","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/3218\/","title":{"rendered":"js\u5982\u4f55\u8bbe\u7f6eimg\u7684src"},"content":{"rendered":"<blockquote><p>\n  \u7b54\u6848\uff1a \u4f7f\u7528 javascript \u8bbe\u7f6e img \u7684 src \u5c5e\u6027\uff0c\u53ef\u4ee5\u4f7f\u7528 img.src \u5c5e\u6027\u6216 setattribute() \u65b9\u6cd5\u3002\u4f7f\u7528 img.src \u5c5e\u6027\uff1ajs const image = document.getelementbyid(&#8220;myimage&#8221;); image.src = &#8220;new-image-url.jpg&#8221;; \u4f7f\u7528 setattribute()\uff1ajs const image = document.getelementbyid(&amp;q\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/08\/2024110807243427200.jpg\" class=\"aligncenter\" title=\"js\u5982\u4f55\u8bbe\u7f6eimg\u7684src\u63d2\u56fe\" alt=\"js\u5982\u4f55\u8bbe\u7f6eimg\u7684src\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528 JavaScript \u8bbe\u7f6e img \u7684 src<\/strong><\/p>\n<p>\u8981\u4f7f\u7528 JavaScript \u8bbe\u7f6e\u56fe\u50cf (img) \u5143\u7d20\u7684 src \u5c5e\u6027\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u4e4b\u4e00\uff1a<\/p>\n<p><strong>\u65b9\u6cd5 1\uff1a\u4f7f\u7528 img.src \u5c5e\u6027<\/strong><\/p>\n<pre>const image = document.getElementById(\"myImage\");\nimage.src = \"new-image-url.jpg\";<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>\u65b9\u6cd5 2\uff1a\u4f7f\u7528 setAttribute()<\/strong><\/p>\n<pre>const image = document.getElementById(\"myImage\");\nimage.setAttribute(\"src\", \"new-image-url.jpg\");<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8fd9\u4e24\u79cd\u65b9\u6cd5\u90fd\u4f1a\u52a8\u6001\u66f4\u65b0 img \u5143\u7d20\u4e2d\u663e\u793a\u7684\u56fe\u50cf\u3002<\/p>\n<p><strong>\u9644\u52a0\u4fe1\u606f\uff1a<\/strong><\/p>\n<ul>\n<li>\u8bf7\u6ce8\u610f\uff0csrc \u5c5e\u6027\u5fc5\u987b\u6307\u5411\u6709\u6548\u7684\u56fe\u50cf\u6587\u4ef6 URL\u3002<\/li>\n<li>\u5982\u679c URL \u65e0\u6548\uff0c\u56fe\u50cf\u5c06\u65e0\u6cd5\u663e\u793a\u3002<\/li>\n<li>\u60a8\u53ef\u4ee5\u4f7f\u7528 JavaScript \u4e8b\u4ef6\uff08\u5982 onclick \u6216 onload\uff09\u6765\u52a8\u6001\u66f4\u6539\u56fe\u50cf\u7684 src\uff0c\u4ee5\u54cd\u5e94\u7528\u6237\u4ea4\u4e92\u6216\u9875\u9762\u52a0\u8f7d\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjs\u5982\u4f55\u8bbe\u7f6eimg\u7684src\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7b54\u6848\uff1a \u4f7f\u7528 javascript \u8bbe\u7f6e img \u7684 src \u5c5e\u6027\uff0c\u53ef\u4ee5\u4f7f\u7528 img.src \u5c5e\u6027\u6216 setattribute() \u65b9\u6cd5\u3002\u4f7f\u7528 img.src \u5c5e\u6027\uff1ajs const image = document.getelementbyid(&#8220;myimage&#8221;); image.src = &#8220;new-image-url.jpg&#8221;; \u4f7f\u7528 setattribute()\uff1ajs const image = document.getelementbyid(&amp;q \u5982\u4f55\u4f7f\u7528 JavaScript \u8bbe\u7f6e img \u7684 src \u8981\u4f7f\u7528 JavaScript \u8bbe\u7f6e\u56fe\u50cf (img) \u5143\u7d20\u7684 src \u5c5e\u6027\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u4e4b\u4e00\uff1a \u65b9\u6cd5 1\uff1a\u4f7f\u7528 img.src \u5c5e\u6027 const image = document.getElementById(&#8220;myImage&#8221;); image.src = &#8220;new-image-url.jpg&#8221;; \u767b\u5f55\u540e\u590d\u5236 \u65b9\u6cd5 2\uff1a\u4f7f\u7528 setAttribute() [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-3218","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/3218","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=3218"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/3218\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=3218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=3218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=3218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}