{"id":174403,"date":"2024-11-07T21:33:20","date_gmt":"2024-11-07T13:33:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/174403\/"},"modified":"2024-11-07T21:33:21","modified_gmt":"2024-11-07T13:33:21","slug":"%e5%a6%82%e4%bd%95%e8%a7%a3%e6%b1%ba%e6%96%87%e6%9c%ac%e5%b0%8e%e5%85%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e6%97%a5%e6%9c%9f%e5%87%ba%e9%8c%af%e7%9a%84%e5%95%8f%e9%a1%8c-%e6%96%87%e6%9c%ac%e5%b0%8e%e5%85%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/174403\/","title":{"rendered":"\u5982\u4f55\u89e3\u6c7a\u6587\u672c\u5c0e\u5165\u6578\u64da\u5eab\u65e5\u671f\u51fa\u932f\u7684\u554f\u984c (\u6587\u672c\u5c0e\u5165\u6578\u64da\u5eab\u65e5\u671f\u51fa\u932f)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e8%a7%a3%e6%b1%ba%e6%96%87%e6%9c%ac%e5%b0%8e%e5%85%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e6%97%a5%e6%9c%9f%e5%87%ba%e9%8c%af%e7%9a%84%e5%95%8f%e9%a1%8c-jtEjjHdOwP\">\u5982\u4f55\u89e3\u6c7a\u6587\u672c\u5c0e\u5165\u6578\u64da\u5eab\u65e5\u671f\u51fa\u932f\u7684\u554f\u984c<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u65e5\u671f\u683c\u5f0f\u7684\u6b63\u78ba\u6027\u81f3\u95dc\u91cd\u8981\u3002\u7576\u5f9e\u6587\u672c\u6587\u4ef6\u5c0e\u5165\u6578\u64da\u5230\u6578\u64da\u5eab\u6642\uff0c\u65e5\u671f\u683c\u5f0f\u4e0d\u6b63\u78ba\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u932f\u8aa4\u6216\u5c0e\u5165\u5931\u6557\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u89e3\u6c7a\u6587\u672c\u5c0e\u5165\u6578\u64da\u5eab\u65e5\u671f\u51fa\u932f\u7684\u554f\u984c\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u89e3\u6c7a\u65b9\u6848\u548c\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e7%9a%84%e6%97%a5%e6%9c%9f%e6%a0%bc%e5%bc%8f%e5%95%8f%e9%a1%8c-jtEjjHdOwP\">\u5e38\u898b\u7684\u65e5\u671f\u683c\u5f0f\u554f\u984c<\/h2>\n<p>\u5728\u5c0e\u5165\u6578\u64da\u6642\uff0c\u6700\u5e38\u898b\u7684\u65e5\u671f\u683c\u5f0f\u554f\u984c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u65e5\u671f\u683c\u5f0f\u4e0d\u4e00\u81f4\uff1a\u4f8b\u5982\uff0c\u67d0\u4e9b\u8a18\u9304\u4f7f\u7528\u201cYYYY-MM-DD\u201d\u683c\u5f0f\uff0c\u800c\u5176\u4ed6\u8a18\u9304\u4f7f\u7528\u201cDD\/MM\/YYYY\u201d\u683c\u5f0f\u3002<\/li>\n<li>\u7121\u6548\u7684\u65e5\u671f\uff1a\u4f8b\u5982\uff0c\u8f38\u5165\u201c2023-02-30\u201d\u9019\u6a23\u7684\u65e5\u671f\uff0c\u5be6\u969b\u4e0a\u4e26\u4e0d\u5b58\u5728\u3002<\/li>\n<li>\u6642\u5340\u554f\u984c\uff1a\u5982\u679c\u6578\u64da\u4f86\u81ea\u4e0d\u540c\u7684\u6642\u5340\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u65e5\u671f\u548c\u6642\u9593\u7684\u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-jtEjjHdOwP\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<h3 id=\"1-%e7%a2%ba%e8%aa%8d%e6%97%a5%e6%9c%9f%e6%a0%bc%e5%bc%8f-jtEjjHdOwP\">1. \u78ba\u8a8d\u65e5\u671f\u683c\u5f0f<\/h3>\n<p>\u5728\u5c0e\u5165\u6578\u64da\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u78ba\u8a8d\u6587\u672c\u6587\u4ef6\u4e2d\u7684\u65e5\u671f\u683c\u5f0f\u3002\u53ef\u4ee5\u4f7f\u7528\u6587\u672c\u7de8\u8f2f\u5668\u6216\u6578\u64da\u8655\u7406\u5de5\u5177\uff08\u5982 Excel\uff09\u4f86\u6aa2\u67e5\u548c\u7d71\u4e00\u65e5\u671f\u683c\u5f0f\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 Python \u4ee3\u78bc\u793a\u4f8b\uff0c\u7528\u65bc\u6aa2\u67e5\u65e5\u671f\u683c\u5f0f\uff1a<\/p>\n<pre><code>import pandas as pd\n\n# \u8b80\u53d6\u6587\u672c\u6587\u4ef6\ndata = pd.read_csv('data.txt')\n\n# \u6aa2\u67e5\u65e5\u671f\u683c\u5f0f\ndata['date_column'] = pd.to_datetime(data['date_column'], errors='coerce')\nprint(data['date_column'])\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c`pd.to_datetime` \u51fd\u6578\u5c07\u5617\u8a66\u5c07\u65e5\u671f\u5217\u8f49\u63db\u70ba\u6a19\u6e96\u65e5\u671f\u683c\u5f0f\uff0c\u4e26\u5c07\u7121\u6cd5\u8f49\u63db\u7684\u65e5\u671f\u8a2d\u7f6e\u70ba NaT\uff08Not a Time\uff09\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e6%ad%a3%e7%a2%ba%e7%9a%84%e6%97%a5%e6%9c%9f%e6%a0%bc%e5%bc%8f%e5%b0%8e%e5%85%a5%e6%95%b8%e6%93%9a-jtEjjHdOwP\">2. \u4f7f\u7528\u6b63\u78ba\u7684\u65e5\u671f\u683c\u5f0f\u5c0e\u5165\u6578\u64da<\/h3>\n<p>\u5728\u5c07\u6578\u64da\u5c0e\u5165\u6578\u64da\u5eab\u4e4b\u524d\uff0c\u78ba\u4fdd\u4f7f\u7528\u6b63\u78ba\u7684\u65e5\u671f\u683c\u5f0f\u3002\u5927\u591a\u6578\u6578\u64da\u5eab\u7cfb\u7d71\uff08\u5982 MySQL\u3001PostgreSQL\uff09\u90fd\u652f\u6301 ISO 8601 \u683c\u5f0f\uff08YYYY-MM-DD\uff09\u3002\u5728\u5c0e\u5165\u6578\u64da\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528 SQL \u8a9e\u53e5\u4f86\u6307\u5b9a\u65e5\u671f\u683c\u5f0f\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>LOAD DATA INFILE 'data.txt'\nINTO TABLE your_table\nFIELDS TERMINATED BY ','\nLINES TERMINATED BY 'n'\n(date_column)\nSET date_column = STR_TO_DATE(date_column, '%Y-%m-%d');\n<\/code><\/pre>\n<p>\u9019\u6bb5 SQL \u8a9e\u53e5\u5c07\u5f9e\u6587\u672c\u6587\u4ef6\u4e2d\u5c0e\u5165\u6578\u64da\uff0c\u4e26\u4f7f\u7528 `STR_TO_DATE` \u51fd\u6578\u5c07\u65e5\u671f\u5217\u8f49\u63db\u70ba\u6b63\u78ba\u7684\u683c\u5f0f\u3002<\/p>\n<h3 id=\"3-%e8%99%95%e7%90%86%e7%84%a1%e6%95%88%e6%97%a5%e6%9c%9f-jtEjjHdOwP\">3. \u8655\u7406\u7121\u6548\u65e5\u671f<\/h3>\n<p>\u5728\u5c0e\u5165\u6578\u64da\u4e4b\u524d\uff0c\u61c9\u8a72\u6aa2\u67e5\u4e26\u8655\u7406\u7121\u6548\u7684\u65e5\u671f\u3002\u53ef\u4ee5\u4f7f\u7528\u6b63\u5247\u8868\u9054\u5f0f\u4f86\u9a57\u8b49\u65e5\u671f\u683c\u5f0f\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>import re\n\ndef is_valid_date(date_string):\n    pattern = r'^d{4}-d{2}-d{2}$'\n    return re.match(pattern, date_string) is not None\n\n# \u6aa2\u67e5\u65e5\u671f\nfor date in data['date_column']:\n    if not is_valid_date(date):\n        print(f'\u7121\u6548\u65e5\u671f: {date}')\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u6aa2\u67e5\u65e5\u671f\u662f\u5426\u7b26\u5408 YYYY-MM-DD \u683c\u5f0f\uff0c\u4e26\u6253\u5370\u51fa\u7121\u6548\u7684\u65e5\u671f\u3002<\/p>\n<h3 id=\"4-%e8%80%83%e6%85%ae%e6%99%82%e5%8d%80%e5%95%8f%e9%a1%8c-jtEjjHdOwP\">4. \u8003\u616e\u6642\u5340\u554f\u984c<\/h3>\n<p>\u5982\u679c\u6578\u64da\u4f86\u81ea\u4e0d\u540c\u7684\u6642\u5340\uff0c\u61c9\u8a72\u5728\u5c0e\u5165\u4e4b\u524d\u9032\u884c\u6642\u5340\u8f49\u63db\u3002\u53ef\u4ee5\u4f7f\u7528 Python \u7684 `pytz` \u5eab\u4f86\u8655\u7406\u6642\u5340\u554f\u984c\uff1a<\/p>\n<pre><code>import pytz\nfrom datetime import datetime\n\n# \u8a2d\u5b9a\u6642\u5340\nlocal_tz = pytz.timezone('Asia\/Hong_Kong')\n\n# \u8f49\u63db\u65e5\u671f\ndef convert_to_local_time(date_string):\n    naive_date = datetime.strptime(date_string, '%Y-%m-%d %H:%M:%S')\n    local_date = local_tz.localize(naive_date)\n    return local_date\n\n# \u61c9\u7528\u8f49\u63db\ndata['date_column'] = data['date_column'].apply(convert_to_local_time)\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-jtEjjHdOwP\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u6587\u672c\u5c0e\u5165\u6578\u64da\u5eab\u6642\uff0c\u65e5\u671f\u683c\u5f0f\u7684\u6b63\u78ba\u6027\u662f\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\u7684\u91cd\u8981\u56e0\u7d20\u3002\u901a\u904e\u78ba\u8a8d\u65e5\u671f\u683c\u5f0f\u3001\u4f7f\u7528\u6b63\u78ba\u7684\u5c0e\u5165\u8a9e\u53e5\u3001\u8655\u7406\u7121\u6548\u65e5\u671f\u4ee5\u53ca\u8003\u616e\u6642\u5340\u554f\u984c\uff0c\u53ef\u4ee5\u6709\u6548\u89e3\u6c7a\u6587\u672c\u5c0e\u5165\u6578\u64da\u5eab\u65e5\u671f\u51fa\u932f\u7684\u554f\u984c\u3002\u9019\u4e9b\u65b9\u6cd5\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6578\u64da\u5c0e\u5165\u7684\u6e96\u78ba\u6027\uff0c\u9084\u80fd\u6e1b\u5c11\u5f8c\u7e8c\u6578\u64da\u8655\u7406\u4e2d\u7684\u9ebb\u7169\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u7684\u8cc7\u8a0a\uff0c\u6216\u60f3\u4e86\u89e3\u5982\u4f55\u4f7f\u7528 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u4f86\u63d0\u5347\u60a8\u7684\u6578\u64da\u8655\u7406\u80fd\u529b\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8a73\u7d30\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u89e3\u6c7a\u6587\u672c\u5c0e\u5165\u6578\u64da\u5eab\u6642\u65e5\u671f\u683c\u5f0f\u932f\u8aa4\u7684\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u6e96\u78ba\u6027\u548c\u5b8c\u6574\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-174403","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/174403","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=174403"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/174403\/revisions"}],"predecessor-version":[{"id":174404,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/174403\/revisions\/174404"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=174403"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=174403"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=174403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}