{"id":96980,"date":"2024-10-20T13:59:19","date_gmt":"2024-10-20T05:59:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/96980\/"},"modified":"2024-10-20T13:59:19","modified_gmt":"2024-10-20T05:59:19","slug":"python-%e5%9c%96%e7%89%87%e5%ad%98%e5%85%a5%e6%95%b8%e6%93%9a%e5%ba%ab-%e9%ab%98%e6%95%88%e5%ad%98%e5%84%b2%e5%92%8c%e6%96%b9%e4%be%bf%e8%aa%bf%e7%94%a8-python-%e5%9c%96%e7%89%87","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/96980\/","title":{"rendered":"Python \u5716\u7247\u5b58\u5165\u6578\u64da\u5eab\u2014\u2014\u9ad8\u6548\u5b58\u5132\u548c\u65b9\u4fbf\u8abf\u7528 (python \u5716\u7247\u5b58\u5165\u6578\u64da\u5eab\u512a\u52e2)"},"content":{"rendered":"<h1 id=\"python-%e5%9c%96%e7%89%87%e5%ad%98%e5%85%a5%e6%95%b8%e6%93%9a%e5%ba%ab-%e9%ab%98%e6%95%88%e5%ad%98%e5%84%b2%e5%92%8c%e6%96%b9%e4%be%bf%e8%aa%bf%e7%94%a8-zvVBUhoKvW\">Python \u5716\u7247\u5b58\u5165\u6578\u64da\u5eab\u2014\u2014\u9ad8\u6548\u5b58\u5132\u548c\u65b9\u4fbf\u8abf\u7528<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u5b57\u5316\u7684\u6642\u4ee3\uff0c\u5716\u7247\u5df2\u6210\u70ba\u4fe1\u606f\u50b3\u905e\u7684\u91cd\u8981\u5a92\u4ecb\u3002\u7121\u8ad6\u662f\u793e\u4ea4\u5a92\u9ad4\u3001\u96fb\u5b50\u5546\u52d9\u9084\u662f\u500b\u4eba\u7db2\u7ad9\uff0c\u5716\u7247\u7684\u4f7f\u7528\u90fd\u7121\u8655\u4e0d\u5728\u3002\u5c0d\u65bc\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u5982\u4f55\u9ad8\u6548\u5730\u5b58\u5132\u548c\u8abf\u7528\u5716\u7247\u662f\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4f7f\u7528 Python \u5c07\u5716\u7247\u5b58\u5165\u6578\u64da\u5eab\u7684\u512a\u52e2\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87%e5%b0%87%e5%9c%96%e7%89%87%e5%ad%98%e5%85%a5%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9f-zvVBUhoKvW\">\u70ba\u4ec0\u9ebc\u9078\u64c7\u5c07\u5716\u7247\u5b58\u5165\u6578\u64da\u5eab\uff1f<\/h2>\n<p>\u5c07\u5716\u7247\u5b58\u5165\u6578\u64da\u5eab\u6709\u5e7e\u500b\u660e\u986f\u7684\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u96c6\u4e2d\u7ba1\u7406\uff1a<\/strong>\u5c07\u6240\u6709\u5716\u7247\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u9032\u884c\u7ba1\u7406\u548c\u5099\u4efd\uff0c\u6e1b\u5c11\u6587\u4ef6\u7cfb\u7d71\u4e2d\u7684\u6df7\u4e82\u3002<\/li>\n<li><strong>\u5b89\u5168\u6027\uff1a<\/strong>\u6578\u64da\u5eab\u901a\u5e38\u63d0\u4f9b\u66f4\u9ad8\u7684\u5b89\u5168\u6027\uff0c\u80fd\u5920\u9632\u6b62\u672a\u7d93\u6388\u6b0a\u7684\u8a2a\u554f\u548c\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li><strong>\u65b9\u4fbf\u67e5\u8a62\uff1a<\/strong>\u901a\u904e SQL \u67e5\u8a62\uff0c\u53ef\u4ee5\u5feb\u901f\u6aa2\u7d22\u548c\u64cd\u4f5c\u5716\u7247\u6578\u64da\uff0c\u63d0\u5347\u958b\u767c\u6548\u7387\u3002<\/li>\n<li><strong>\u6578\u64da\u5b8c\u6574\u6027\uff1a<\/strong>\u5c07\u5716\u7247\u8207\u5176\u4ed6\u6578\u64da\uff08\u5982\u7528\u6236\u4fe1\u606f\uff09\u5b58\u5132\u5728\u540c\u4e00\u6578\u64da\u5eab\u4e2d\uff0c\u53ef\u4ee5\u4fdd\u6301\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-python-%e5%b0%87%e5%9c%96%e7%89%87%e5%ad%98%e5%85%a5%e6%95%b8%e6%93%9a%e5%ba%ab-zvVBUhoKvW\">\u5982\u4f55\u4f7f\u7528 Python \u5c07\u5716\u7247\u5b58\u5165\u6578\u64da\u5eab<\/h2>\n<p>\u5728 Python \u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u591a\u7a2e\u6578\u64da\u5eab\uff0c\u5982 MySQL\u3001PostgreSQL \u6216 SQLite\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 SQLite \u5c07\u5716\u7247\u5b58\u5165\u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e5%ae%89%e8%a3%9d%e5%bf%85%e8%a6%81%e7%9a%84%e5%ba%ab-zvVBUhoKvW\">1. \u5b89\u88dd\u5fc5\u8981\u7684\u5eab<\/h3>\n<p>\u9996\u5148\uff0c\u78ba\u4fdd\u5b89\u88dd\u4e86 SQLite \u548c\u76f8\u95dc\u7684 Python \u5eab\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88dd\uff1a<\/p>\n<pre><code>pip install sqlite3<\/code><\/pre>\n<h3 id=\"2-%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e5%92%8c%e8%a1%a8-zvVBUhoKvW\">2. \u5275\u5efa\u6578\u64da\u5eab\u548c\u8868<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u9700\u8981\u5275\u5efa\u4e00\u500b\u6578\u64da\u5eab\u548c\u4e00\u500b\u8868\u4f86\u5b58\u5132\u5716\u7247\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u8868\u7684\u793a\u4f8b\u4ee3\u78bc\uff1a<\/p>\n<pre><code>import sqlite3\n\n# \u9023\u63a5\u5230\u6578\u64da\u5eab\uff08\u5982\u679c\u4e0d\u5b58\u5728\u5247\u5275\u5efa\uff09\nconn = sqlite3.connect('images.db')\ncursor = conn.cursor()\n\n# \u5275\u5efa\u8868\ncursor.execute('''\nCREATE TABLE IF NOT EXISTS images (\n    id INTEGER PRIMARY KEY,\n    name TEXT,\n    data BLOB\n)\n''')\nconn.commit()\n<\/code><\/pre>\n<h3 id=\"3-%e5%b0%87%e5%9c%96%e7%89%87%e5%ad%98%e5%85%a5%e6%95%b8%e6%93%9a%e5%ba%ab-zvVBUhoKvW\">3. \u5c07\u5716\u7247\u5b58\u5165\u6578\u64da\u5eab<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u53ef\u4ee5\u5c07\u5716\u7247\u8b80\u53d6\u70ba\u4e8c\u9032\u5236\u6578\u64da\u4e26\u5b58\u5165\u6578\u64da\u5eab\uff1a<\/p>\n<pre><code>def insert_image(name, image_path):\n    with open(image_path, 'rb') as file:\n        img_data = file.read()\n        cursor.execute('INSERT INTO images (name, data) VALUES (?, ?)', (name, img_data))\n        conn.commit()\n\n# \u4f7f\u7528\u793a\u4f8b\ninsert_image('example_image', 'path\/to\/image.jpg')\n<\/code><\/pre>\n<h3 id=\"4-%e5%be%9e%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e6%aa%a2%e7%b4%a2%e5%9c%96%e7%89%87-zvVBUhoKvW\">4. \u5f9e\u6578\u64da\u5eab\u4e2d\u6aa2\u7d22\u5716\u7247<\/h3>\n<p>\u6700\u5f8c\uff0c\u6211\u5011\u53ef\u4ee5\u5f9e\u6578\u64da\u5eab\u4e2d\u6aa2\u7d22\u5716\u7247\u4e26\u5c07\u5176\u4fdd\u5b58\u5230\u6587\u4ef6\u4e2d\uff1a<\/p>\n<pre><code>def retrieve_image(image_id, output_path):\n    cursor.execute('SELECT data FROM images WHERE id = ?', (image_id,))\n    img_data = cursor.fetchone()[0]\n    with open(output_path, 'wb') as file:\n        file.write(img_data)\n\n# \u4f7f\u7528\u793a\u4f8b\nretrieve_image(1, 'output_image.jpg')\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-zvVBUhoKvW\">\u7d50\u8ad6<\/h2>\n<p>\u5c07\u5716\u7247\u5b58\u5165\u6578\u64da\u5eab\u662f\u4e00\u7a2e\u9ad8\u6548\u4e14\u5b89\u5168\u7684\u5b58\u5132\u65b9\u5f0f\uff0c\u7279\u5225\u9069\u5408\u9700\u8981\u96c6\u4e2d\u7ba1\u7406\u548c\u5feb\u901f\u6aa2\u7d22\u7684\u61c9\u7528\u5834\u666f\u3002\u901a\u904e Python\uff0c\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5730\u5be6\u73fe\u5716\u7247\u7684\u5b58\u5132\u548c\u8abf\u7528\uff0c\u63d0\u5347\u958b\u767c\u6548\u7387\u548c\u6578\u64da\u5b89\u5168\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u61c9\u7528\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Python\u5982\u4f55\u9ad8\u6548\u5b58\u5132\u5716\u7247\u81f3\u6578\u64da\u5eab\uff0c\u5be6\u73fe\u4fbf\u6377\u8abf\u7528\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\u8207\u9748\u6d3b\u6027\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-96980","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96980","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=96980"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96980\/revisions"}],"predecessor-version":[{"id":96981,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96980\/revisions\/96981"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=96980"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=96980"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=96980"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}