{"id":1602,"date":"2024-11-10T11:22:37","date_gmt":"2024-11-10T03:22:37","guid":{"rendered":"https:\/\/fwq.ai\/blog\/1602\/"},"modified":"2024-11-10T11:22:37","modified_gmt":"2024-11-10T03:22:37","slug":"b%e7%ab%99%e9%a6%96%e9%a1%b5banner%e7%9a%84blob%e9%93%be%e6%8e%a5%ef%bc%9a%e5%a6%82%e4%bd%95%e5%88%b6%e4%bd%9c%e5%92%8c%e4%b8%8b%e8%bd%bd%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/1602\/","title":{"rendered":"B\u7ad9\u9996\u9875Banner\u7684Blob\u94fe\u63a5\uff1a\u5982\u4f55\u5236\u4f5c\u548c\u4e0b\u8f7d\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173051055085606.jpg\" class=\"aligncenter\" title=\"B\u7ad9\u9996\u9875Banner\u7684Blob\u94fe\u63a5\uff1a\u5982\u4f55\u5236\u4f5c\u548c\u4e0b\u8f7d\uff1f\u63d2\u56fe\" alt=\"B\u7ad9\u9996\u9875Banner\u7684Blob\u94fe\u63a5\uff1a\u5982\u4f55\u5236\u4f5c\u548c\u4e0b\u8f7d\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>b\u7ad9\u9996\u9875banner\u4e0a\u7684blob\u94fe\u63a5\u63ed\u79d8<\/strong><\/p>\n<p>\u4f60\u6709\u65f6\u5019\u53ef\u80fd\u6ce8\u610f\u5230B\u7ad9\u9996\u9875\u9876\u90e8Banner\u4e0a\u4f1a\u663e\u793a\u4e00\u4e2a\u7c7b\u4f3c\u8fd9\u6837\u7684\u94fe\u63a5\uff1a&#8221;blob:https:\/\/xxx&#8221;\u3002\u4e0e\u76f4\u63a5\u8bbf\u95ee\u8be5\u94fe\u63a5\u4e0d\u540c\uff0c\u5b83\u4f1a\u6307\u5411Banner\u5c55\u793a\u7684\u5b9e\u9645\u56fe\u7247\u6216\u89c6\u9891\u3002\u90a3\u4e48\uff0c\u5982\u4f55\u5236\u4f5c\u548c\u4e0b\u8f7d\u8fd9\u79cd\u7c7b\u578b\u7684\u94fe\u63a5\u5462\uff1f<\/p>\n<p><strong>\u5236\u4f5c\u65b9\u5f0f<\/strong><\/p>\n<p>\u8981\u5236\u4f5cBlob\u94fe\u63a5\uff0c\u9700\u8981\u4f7f\u7528 URL.createObjectURL \u63a5\u53e3\u3002\u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n<pre>\/\/ \u901a\u8fc7HTML\u7684file\u63a7\u4ef6\u83b7\u53d6\u6587\u4ef6\nconst file = document.querySelector('input[type=\"file\"]').files[0];\n\n\/\/ \u4f7f\u7528FileReader\u8bfb\u53d6\u6587\u4ef6\nconst reader = new FileReader();\nreader.onload = (e) =&gt; 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