{"id":1953,"date":"2025-02-23T14:42:36","date_gmt":"2025-02-23T06:42:36","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=1953"},"modified":"2025-02-23T14:42:36","modified_gmt":"2025-02-23T06:42:36","slug":"html5-%e6%8b%96%e6%94%be%ef%bc%88drag-%e5%92%8c-drop%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/02\/23\/html5-%e6%8b%96%e6%94%be%ef%bc%88drag-%e5%92%8c-drop%ef%bc%89\/","title":{"rendered":"HTML5 \u62d6\u653e\uff08Drag \u548c Drop\uff09"},"content":{"rendered":"\n

HTML5 \u62d6\u653e\uff08Drag and Drop\uff09<\/strong> \u662f\u4e00\u79cd\u5141\u8bb8\u7528\u6237\u901a\u8fc7\u62d6\u52a8\u4e00\u4e2a\u5143\u7d20\u5e76\u5c06\u5176\u653e\u7f6e\u5230\u53e6\u4e00\u4e2a\u533a\u57df\u7684\u4ea4\u4e92\u65b9\u5f0f\u3002HTML5 \u63d0\u4f9b\u4e86\u5bf9\u62d6\u653e\u64cd\u4f5c\u7684\u539f\u751f\u652f\u6301\uff0c\u4e0d\u518d\u9700\u8981\u501f\u52a9 JavaScript \u5e93\u3002\u8fd9\u4f7f\u5f97\u5f00\u53d1\u8005\u80fd\u591f\u521b\u5efa\u66f4\u52a0\u76f4\u89c2\u548c\u4ea4\u4e92\u6027\u5f3a\u7684\u7f51\u9875\u5e94\u7528\u3002<\/p>\n\n\n\n

1. \u62d6\u653e\u57fa\u7840<\/strong><\/h3>\n\n\n\n

HTML5 \u62d6\u653e\u64cd\u4f5c\u4e3b\u8981\u4f9d\u8d56\u4e8e\u4ee5\u4e0b\u4e09\u4e2a\u4e8b\u4ef6\uff1a<\/p>\n\n\n\n

    \n
  • dragstart<\/code><\/strong>\uff1a\u5f53\u7528\u6237\u5f00\u59cb\u62d6\u52a8\u5143\u7d20\u65f6\u89e6\u53d1\u3002<\/li>\n\n\n\n
  • dragover<\/code><\/strong>\uff1a\u5f53\u62d6\u52a8\u5143\u7d20\u7ecf\u8fc7\u76ee\u6807\u533a\u57df\u65f6\u89e6\u53d1\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u8fd9\u4e2a\u4e8b\u4ef6\u4e0d\u4f1a\u8ba9\u5143\u7d20\u88ab\u653e\u7f6e\u5728\u76ee\u6807\u533a\u57df\uff0c\u6240\u4ee5\u4f60\u9700\u8981\u8c03\u7528 event.preventDefault()<\/code> \u6765\u5141\u8bb8\u653e\u7f6e\u3002<\/li>\n\n\n\n
  • drop<\/code><\/strong>\uff1a\u5f53\u62d6\u52a8\u7684\u5143\u7d20\u88ab\u653e\u5230\u76ee\u6807\u533a\u57df\u65f6\u89e6\u53d1\u3002<\/li>\n<\/ul>\n\n\n\n

    2. \u62d6\u52a8\u64cd\u4f5c\u7684\u57fa\u672c\u6b65\u9aa4<\/strong><\/h3>\n\n\n\n

    1. \u8bbe\u7f6e\u62d6\u52a8\u6e90<\/strong><\/h4>\n\n\n\n

    \u901a\u8fc7\u5728\u5143\u7d20\u4e0a\u8bbe\u7f6e draggable=\"true\"<\/code>\uff0c\u4f60\u53ef\u4ee5\u4f7f\u8be5\u5143\u7d20\u53d8\u6210\u53ef\u62d6\u52a8\u7684\u5bf9\u8c61\u3002<\/p>\n\n\n\n

    <img src=\"image.jpg\" id=\"dragImage\" draggable=\"true\" \/><\/code><\/pre>\n\n\n\n
    2. \u5b9a\u4e49\u62d6\u52a8\u4e8b\u4ef6<\/strong><\/h4>\n\n\n\n
    \u4f60\u9700\u8981\u4e3a\u53ef\u62d6\u52a8\u7684\u5143\u7d20\u5b9a\u4e49 dragstart<\/code> \u4e8b\u4ef6\uff0c\u8fd9\u6837\u53ef\u4ee5\u8bbe\u7f6e\u62d6\u52a8\u8fc7\u7a0b\u4e2d\u4f20\u9012\u7684\u6570\u636e\uff08\u4f8b\u5982\u62d6\u52a8\u56fe\u7247\u65f6\u4f20\u9012\u8be5\u56fe\u7247\u7684 ID \u6216\u5176\u4ed6\u4fe1\u606f\uff09\u3002<\/p>\n\n\n\n
    <script>\n    document.getElementById(\"dragImage\").addEventListener(\"dragstart\", function(event) {\n        \/\/ \u5728\u62d6\u52a8\u5f00\u59cb\u65f6\uff0c\u8bbe\u7f6e\u8981\u4f20\u9012\u7684\u6570\u636e\n        event.dataTransfer.setData(\"text\", event.target.id);\n    });\n<\/script><\/code><\/pre>\n\n\n\n
      \n
    • dataTransfer.setData()<\/code><\/strong>\uff1a\u8fd9\u4e2a\u65b9\u6cd5\u7528\u6765\u8bbe\u7f6e\u62d6\u52a8\u8fc7\u7a0b\u4e2d\u4f20\u9012\u7684\u6570\u636e\u3002\"text\"<\/code> \u662f\u6570\u636e\u7c7b\u578b\uff0cevent.target.id<\/code> \u662f\u4f60\u60f3\u8981\u4f20\u9012\u7684\u6570\u636e\uff08\u4f8b\u5982\u56fe\u7247\u7684 ID\uff09\u3002<\/li>\n<\/ul>\n\n\n\n
      3. \u8bbe\u7f6e\u76ee\u6807\u533a\u57df\uff08Drop \u533a\u57df\uff09<\/strong><\/h4>\n\n\n\n
      \u8981\u4f7f\u67d0\u4e2a\u5143\u7d20\u6210\u4e3a\u53ef\u63a5\u53d7\u62d6\u653e\u7684\u76ee\u6807\u533a\u57df\uff0c\u4f60\u9700\u8981\u4e3a\u76ee\u6807\u533a\u57df\u8bbe\u7f6e dragover<\/code> \u548c drop<\/code> \u4e8b\u4ef6\u3002<\/p>\n\n\n\n
      <div id=\"dropZone\" style=\"width: 300px; height: 300px; border: 2px dashed #ccc;\">\n    \u62d6\u52a8\u56fe\u7247\u5230\u6b64\u533a\u57df\n<\/div><\/code><\/pre>\n\n\n\n
      4. \u5904\u7406 dragover<\/code> \u4e8b\u4ef6<\/strong><\/h4>\n\n\n\n
      dragover<\/code> \u4e8b\u4ef6\u7528\u4e8e\u5904\u7406\u62d6\u52a8\u5143\u7d20\u7ecf\u8fc7\u76ee\u6807\u533a\u57df\u65f6\u7684\u884c\u4e3a\u3002\u4e3a\u4e86\u5141\u8bb8\u62d6\u52a8\u5143\u7d20\u88ab\u653e\u7f6e\u5728\u76ee\u6807\u533a\u57df\uff0c\u4f60\u9700\u8981\u8c03\u7528 event.preventDefault()<\/code>\u3002<\/p>\n\n\n\n
      <script>\n    document.getElementById(\"dropZone\").addEventListener(\"dragover\", function(event) {\n        \/\/ \u5141\u8bb8\u5143\u7d20\u88ab\u653e\u7f6e\u5728\u76ee\u6807\u533a\u57df\n        event.preventDefault();\n    });\n<\/script><\/code><\/pre>\n\n\n\n
      5. \u5904\u7406 drop<\/code> \u4e8b\u4ef6<\/strong><\/h4>\n\n\n\n
      drop<\/code> \u4e8b\u4ef6\u4f1a\u5728\u62d6\u52a8\u7684\u5143\u7d20\u88ab\u653e\u7f6e\u5230\u76ee\u6807\u533a\u57df\u65f6\u89e6\u53d1\u3002\u5728\u8fd9\u4e2a\u4e8b\u4ef6\u4e2d\uff0c\u4f60\u53ef\u4ee5\u83b7\u53d6\u62d6\u52a8\u65f6\u4f20\u9012\u7684\u6570\u636e\uff0c\u5e76\u5904\u7406\u5b83\uff08\u4f8b\u5982\u79fb\u52a8\u6216\u590d\u5236\u5143\u7d20\u5230\u76ee\u6807\u533a\u57df\uff09\u3002<\/p>\n\n\n\n
      <script>\n    document.getElementById(\"dropZone\").addEventListener(\"drop\", function(event) {\n        event.preventDefault();\n\n        \/\/ \u83b7\u53d6\u62d6\u52a8\u65f6\u4f20\u9012\u7684\u6570\u636e\n        var data = event.dataTransfer.getData(\"text\");\n\n        \/\/ \u5c06\u62d6\u52a8\u7684\u5143\u7d20\u79fb\u52a8\u5230\u76ee\u6807\u533a\u57df\n        var draggedElement = document.getElementById(data);\n        this.appendChild(draggedElement);  \/\/ \u5c06\u56fe\u7247\u6dfb\u52a0\u5230 drop \u533a\u57df\n    });\n<\/script><\/code><\/pre>\n\n\n\n
      3. \u5b8c\u6574\u793a\u4f8b\uff1a\u62d6\u52a8\u56fe\u7247\u5230\u76ee\u6807\u533a\u57df<\/strong><\/h3>\n\n\n\n
      \u4ee5\u4e0b\u662f\u4e00\u4e2a\u5b8c\u6574\u7684\u4f8b\u5b50\uff0c\u6f14\u793a\u5982\u4f55\u5c06\u56fe\u7247\u4ece\u4e00\u4e2a\u533a\u57df\u62d6\u52a8\u5230\u53e6\u4e00\u4e2a\u533a\u57df\uff1a<\/p>\n\n\n\n
      <!DOCTYPE html>\n<html lang=\"en\">\n<head>\n    <meta charset=\"UTF-8\">\n    <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n    <title>HTML5 Drag and Drop Example<\/title>\n    <style>\n        #dragImage {\n            width: 100px;\n            height: 100px;\n            cursor: move;\n        }\n\n        #dropZone {\n            width: 300px;\n            height: 300px;\n            border: 2px dashed #ccc;\n            position: relative;\n        }\n    <\/style>\n<\/head>\n<body>\n    <h2>\u62d6\u52a8\u56fe\u7247\u5230\u76ee\u6807\u533a\u57df<\/h2>\n\n    <img src=\"https:\/\/via.placeholder.com\/100\" id=\"dragImage\" draggable=\"true\" \/>\n    <div id=\"dropZone\">\n        \u62d6\u52a8\u56fe\u7247\u5230\u6b64\u533a\u57df\n    <\/div>\n\n    <script>\n        \/\/ \u5904\u7406\u62d6\u52a8\u5f00\u59cb\u4e8b\u4ef6\n        document.getElementById(\"dragImage\").addEventListener(\"dragstart\", function(event) {\n            event.dataTransfer.setData(\"text\", event.target.id);\n        });\n\n        \/\/ \u5904\u7406\u76ee\u6807\u533a\u57df\u7684 dragover \u4e8b\u4ef6\n        document.getElementById(\"dropZone\").addEventListener(\"dragover\", function(event) {\n            event.preventDefault();  \/\/ \u5141\u8bb8\u62d6\u52a8\u5143\u7d20\u653e\u7f6e\u5230\u8be5\u533a\u57df\n        });\n\n        \/\/ \u5904\u7406 drop \u4e8b\u4ef6\n        document.getElementById(\"dropZone\").addEventListener(\"drop\", function(event) {\n            event.preventDefault();\n\n            var data = event.dataTransfer.getData(\"text\");\n            var draggedElement = document.getElementById(data);\n            this.appendChild(draggedElement);  \/\/ \u5c06\u56fe\u7247\u79fb\u52a8\u5230\u76ee\u6807\u533a\u57df\n        });\n    <\/script>\n<\/body>\n<\/html><\/code><\/pre>\n\n\n\n
      4. \u62d6\u653e\u7684\u66f4\u591a\u7279\u6027<\/strong><\/h3>\n\n\n\n
      1. \u62d6\u52a8\u6548\u679c\uff08Drag Effects\uff09<\/strong><\/h4>\n\n\n\n
      \u4f60\u53ef\u4ee5\u8bbe\u7f6e\u62d6\u52a8\u65f6\u7684\u89c6\u89c9\u6548\u679c\uff0c\u4f8b\u5982\u8bbe\u7f6e dragstart<\/code><\/strong> \u65f6\u7684\u5149\u6807\u6837\u5f0f\u6216\u4f7f\u7528 event.dataTransfer.effectAllowed<\/code><\/strong> \u6765\u6307\u5b9a\u5141\u8bb8\u7684\u62d6\u52a8\u6548\u679c\uff08\u5982\u590d\u5236\u3001\u79fb\u52a8\u7b49\uff09\u3002<\/p>\n\n\n\n
      document.getElementById(\"dragImage\").addEventListener(\"dragstart\", function(event) {\n    event.dataTransfer.setData(\"text\", event.target.id);\n    event.dataTransfer.effectAllowed = \"move\";  \/\/ \u53ea\u5141\u8bb8\u79fb\u52a8\u64cd\u4f5c\n});<\/code><\/pre>\n\n\n\n
      2. \u6587\u4ef6\u62d6\u653e<\/strong><\/h4>\n\n\n\n
      HTML5 \u8fd8\u652f\u6301\u5c06\u6587\u4ef6\u4ece\u672c\u5730\u62d6\u653e\u5230\u7f51\u9875\u4e2d\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528 FileReader<\/code><\/strong> API \u6765\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u3002<\/p>\n\n\n\n
      <input type=\"file\" id=\"fileInput\" \/>\n<script>\n    document.getElementById(\"fileInput\").addEventListener(\"change\", function(event) {\n        var file = event.target.files[0];\n        var reader = new FileReader();\n\n        reader.onload = function(e) {\n            console.log(e.target.result);  \/\/ \u8bfb\u53d6\u7684\u6587\u4ef6\u5185\u5bb9\n        };\n\n        reader.readAsText(file);  \/\/ \u8bfb\u53d6\u6587\u4ef6\u4e3a\u6587\u672c\n    });\n<\/script><\/code><\/pre>\n\n\n\n
      3. \u653e\u7f6e\u6587\u4ef6\u5230\u76ee\u6807\u533a\u57df<\/strong><\/h4>\n\n\n\n
      \u4f60\u53ef\u4ee5\u901a\u8fc7 dragover<\/code> \u548c drop<\/code> \u4e8b\u4ef6\u5b9e\u73b0\u5c06\u6587\u4ef6\u62d6\u653e\u5230\u7f51\u9875\u4e2d\u7684\u76ee\u6807\u533a\u57df\u5e76\u8fdb\u884c\u5904\u7406\u3002<\/p>\n\n\n\n
      <div id=\"fileDropZone\" style=\"width: 300px; height: 200px; border: 2px dashed #ccc;\">\n    \u5c06\u6587\u4ef6\u62d6\u5230\u8fd9\u91cc\n<\/div>\n\n<script>\n    document.getElementById(\"fileDropZone\").addEventListener(\"dragover\", function(event) {\n        event.preventDefault();  \/\/ \u5141\u8bb8\u62d6\u653e\n    });\n\n    document.getElementById(\"fileDropZone\").addEventListener(\"drop\", function(event) {\n        event.preventDefault();\n        var files = event.dataTransfer.files;\n        for (var i = 0; i < files.length; i++) {\n            console.log(files[i].name);  \/\/ \u6253\u5370\u62d6\u653e\u7684\u6587\u4ef6\u540d\n        }\n    });\n<\/script><\/code><\/pre>\n\n\n\n
      5. \u603b\u7ed3<\/strong><\/h3>\n\n\n\n
      HTML5 \u63d0\u4f9b\u4e86\u5bf9\u62d6\u653e\u64cd\u4f5c\u7684\u539f\u751f\u652f\u6301\uff0c\u4f7f\u5f97\u521b\u5efa\u4ea4\u4e92\u5f0f\u3001\u76f4\u89c2\u7684\u7f51\u9875\u5e94\u7528\u53d8\u5f97\u66f4\u5bb9\u6613\u3002\u901a\u8fc7 dragstart<\/code>\u3001dragover<\/code> \u548c drop<\/code> \u4e8b\u4ef6\uff0c\u4f60\u53ef\u4ee5\u5b9e\u73b0\u5404\u79cd\u62d6\u653e\u529f\u80fd\uff0c\u5982\u79fb\u52a8\u5143\u7d20\u3001\u4e0a\u4f20\u6587\u4ef6\u7b49\u3002\u901a\u8fc7\u9002\u5f53\u7684\u4e8b\u4ef6\u5904\u7406\u548c\u6837\u5f0f\u8c03\u6574\uff0c\u4f60\u53ef\u4ee5\u521b\u5efa\u4e30\u5bcc\u7684\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
      HTML5 \u62d6\u653e\uff08Drag and Drop\uff09 \u662f\u4e00\u79cd\u5141\u8bb8\u7528\u6237\u901a\u8fc7\u62d6\u52a8\u4e00\u4e2a\u5143\u7d20\u5e76\u5c06\u5176\u653e\u7f6e\u5230\u53e6\u4e00\u4e2a\u533a\u57df\u7684\u4ea4\u4e92\u65b9\u5f0f […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[75],"tags":[],"class_list":["post-1953","post","type-post","status-publish","format-standard","hentry","category-html5"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/1953","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=1953"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/1953\/revisions"}],"predecessor-version":[{"id":1954,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/1953\/revisions\/1954"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=1953"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=1953"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=1953"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}