{"id":1005559,"date":"2024-12-27T10:36:47","date_gmt":"2024-12-27T02:36:47","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1005559.html"},"modified":"2024-12-27T10:36:50","modified_gmt":"2024-12-27T02:36:50","slug":"python%e5%a6%82%e4%bd%95%e5%8f%aa%e8%8e%b7%e5%be%97%e5%b9%b4%e4%bb%bd","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1005559.html","title":{"rendered":"python\u5982\u4f55\u53ea\u83b7\u5f97\u5e74\u4efd"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25082037\/13cf446e-6613-4a9e-815c-0c3591dc1809.webp\" alt=\"python\u5982\u4f55\u53ea\u83b7\u5f97\u5e74\u4efd\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\uff0c\u53ea\u83b7\u53d6\u5e74\u4efd\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u5b9e\u73b0\uff0c\u5305\u62ec\u4f7f\u7528datetime\u6a21\u5757\u3001time\u6a21\u5757\u3001pandas\u5e93\u7b49\u3002\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528datetime\u6a21\u5757\u83b7\u53d6\u5f53\u524d\u6216\u7279\u5b9a\u65e5\u671f\u7684\u5e74\u4efd\uff0c\u901a\u8fc7datetime\u6a21\u5757\u4e2d\u7684<code>year<\/code>\u5c5e\u6027\u5373\u53ef\u5b9e\u73b0\u3002<\/strong>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0cdatetime\u6a21\u5757\u662f\u5904\u7406\u65e5\u671f\u548c\u65f6\u95f4\u6570\u636e\u7684\u6807\u51c6\u5e93\u4e4b\u4e00\uff0c\u5b83\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u89e3\u6790\u3001\u683c\u5f0f\u5316\u548c\u64cd\u4f5c\u65e5\u671f\u65f6\u95f4\u6570\u636e\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u51e0\u79cd\u65b9\u6cd5\u6765\u83b7\u53d6\u5e74\u4efd\uff0c\u5e76\u63d0\u4f9b\u4e00\u4e9b\u793a\u4f8b\u4ee3\u7801\u548c\u5e94\u7528\u573a\u666f\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001DATETIME\u6a21\u5757<\/p>\n<\/p>\n<p><p><code>datetime<\/code>\u6a21\u5757\u662fPython\u4e2d\u5904\u7406\u65e5\u671f\u548c\u65f6\u95f4\u7684\u6807\u51c6\u5e93\u4e4b\u4e00\u3002\u901a\u8fc7\u8be5\u6a21\u5757\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u83b7\u53d6\u5f53\u524d\u65e5\u671f\u7684\u5e74\u4efd\u6216\u4ece\u7279\u5b9a\u65e5\u671f\u5bf9\u8c61\u4e2d\u63d0\u53d6\u5e74\u4efd\u3002<\/p>\n<\/p>\n<ol>\n<li><strong>\u83b7\u53d6\u5f53\u524d\u65e5\u671f\u7684\u5e74\u4efd<\/strong><\/li>\n<\/ol>\n<p><p>\u8981\u83b7\u53d6\u5f53\u524d\u65e5\u671f\u7684\u5e74\u4efd\uff0c\u53ef\u4ee5\u4f7f\u7528<code>datetime.datetime.now()<\/code>\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u8fd4\u56de\u5f53\u524d\u7684\u65e5\u671f\u548c\u65f6\u95f4\u3002\u7136\u540e\uff0c\u901a\u8fc7\u8bbf\u95ee<code>year<\/code>\u5c5e\u6027\u5373\u53ef\u83b7\u5f97\u5e74\u4efd\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from datetime import datetime<\/p>\n<h2><strong>\u83b7\u53d6\u5f53\u524d\u65e5\u671f\u65f6\u95f4<\/strong><\/h2>\n<p>current_date = datetime.now()<\/p>\n<h2><strong>\u63d0\u53d6\u5f53\u524d\u5e74\u4efd<\/strong><\/h2>\n<p>current_year = current_date.year<\/p>\n<p>print(f&quot;\u5f53\u524d\u5e74\u4efd\u662f: {current_year}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li><strong>\u4ece\u7279\u5b9a\u65e5\u671f\u5bf9\u8c61\u4e2d\u63d0\u53d6\u5e74\u4efd<\/strong><\/li>\n<\/ol>\n<p><p>\u5982\u679c\u9700\u8981\u4ece\u7279\u5b9a\u7684\u65e5\u671f\u5bf9\u8c61\u4e2d\u63d0\u53d6\u5e74\u4efd\uff0c\u53ef\u4ee5\u4f7f\u7528<code>datetime<\/code>\u6a21\u5757\u7684<code>datetime<\/code>\u7c7b\u6765\u521b\u5efa\u65e5\u671f\u5bf9\u8c61\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from datetime import datetime<\/p>\n<h2><strong>\u521b\u5efa\u7279\u5b9a\u65e5\u671f\u5bf9\u8c61<\/strong><\/h2>\n<p>specific_date = datetime(2023, 10, 5)  # \u5e74\u3001\u6708\u3001\u65e5<\/p>\n<h2><strong>\u63d0\u53d6\u5e74\u4efd<\/strong><\/h2>\n<p>year = specific_date.year<\/p>\n<p>print(f&quot;\u7279\u5b9a\u65e5\u671f\u7684\u5e74\u4efd\u662f: {year}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e8c\u3001TIME\u6a21\u5757<\/p>\n<\/p>\n<p><p><code>time<\/code>\u6a21\u5757\u662fPython\u7684\u53e6\u4e00\u4e2a\u5904\u7406\u65f6\u95f4\u7684\u5e93\u3002\u867d\u7136\u5b83\u4e3b\u8981\u7528\u4e8e\u5904\u7406\u65f6\u95f4\u6233\uff0c\u4f46\u4e5f\u53ef\u4ee5\u7528\u4e8e\u83b7\u53d6\u5f53\u524d\u5e74\u4efd\u3002<\/p>\n<\/p>\n<ol>\n<li><strong>\u4f7f\u7528<code>time<\/code>\u6a21\u5757\u83b7\u53d6\u5f53\u524d\u5e74\u4efd<\/strong><\/li>\n<\/ol>\n<p><p>\u901a\u8fc7<code>time<\/code>\u6a21\u5757\u7684<code>localtime()<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u83b7\u53d6\u4e00\u4e2a\u8868\u793a\u5f53\u524d\u672c\u5730\u65f6\u95f4\u7684\u7ed3\u6784\u5316\u65f6\u95f4\u5bf9\u8c61\u3002\u7136\u540e\uff0c\u901a\u8fc7\u7d22\u5f15\u8bbf\u95ee\u8be5\u5bf9\u8c61\u7684<code>tm_year<\/code>\u5c5e\u6027\u6765\u83b7\u53d6\u5e74\u4efd\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import time<\/p>\n<h2><strong>\u83b7\u53d6\u5f53\u524d\u672c\u5730\u65f6\u95f4<\/strong><\/h2>\n<p>current_time = time.localtime()<\/p>\n<h2><strong>\u63d0\u53d6\u5f53\u524d\u5e74\u4efd<\/strong><\/h2>\n<p>current_year = current_time.tm_year<\/p>\n<p>print(f&quot;\u5f53\u524d\u5e74\u4efd\u662f: {current_year}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e09\u3001PANDAS\u5e93<\/p>\n<\/p>\n<p><p>\u5bf9\u4e8e\u5904\u7406\u5927\u91cf\u65f6\u95f4\u5e8f\u5217\u6570\u636e\uff0c<code>pandas<\/code>\u5e93\u63d0\u4f9b\u4e86\u66f4\u52a0\u7075\u6d3b\u548c\u9ad8\u6548\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<ol>\n<li><strong>\u4f7f\u7528<code>pandas<\/code>\u4ece\u65e5\u671f\u65f6\u95f4\u5bf9\u8c61\u4e2d\u63d0\u53d6\u5e74\u4efd<\/strong><\/li>\n<\/ol>\n<p><p><code>pandas<\/code>\u5e93\u7684<code>to_datetime<\/code>\u65b9\u6cd5\u53ef\u4ee5\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a<code>datetime<\/code>\u5bf9\u8c61\uff0c\u7136\u540e\u901a\u8fc7<code>dt.year<\/code>\u5c5e\u6027\u63d0\u53d6\u5e74\u4efd\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import pandas as pd<\/p>\n<h2><strong>\u521b\u5efa\u65e5\u671f\u65f6\u95f4\u5e8f\u5217<\/strong><\/h2>\n<p>date_series = pd.to_datetime([&quot;2023-10-05&quot;, &quot;2022-01-01&quot;])<\/p>\n<h2><strong>\u63d0\u53d6\u5e74\u4efd<\/strong><\/h2>\n<p>years = date_series.year<\/p>\n<p>print(f&quot;\u63d0\u53d6\u7684\u5e74\u4efd\u662f: {list(years)}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u56db\u3001\u5e94\u7528\u573a\u666f\u53ca\u6ce8\u610f\u4e8b\u9879<\/p>\n<\/p>\n<ol>\n<li><strong>\u6570\u636e\u5206\u6790\u4e0e\u5904\u7406<\/strong><\/li>\n<\/ol>\n<p><p>\u5728\u6570\u636e\u5206\u6790\u4e2d\uff0c\u63d0\u53d6\u5e74\u4efd\u4fe1\u606f\u53ef\u4ee5\u7528\u4e8e\u65f6\u95f4\u5e8f\u5217\u5206\u6790\u3001\u8d8b\u52bf\u9884\u6d4b\u7b49\u3002\u4f8b\u5982\uff0c\u5206\u6790\u9500\u552e\u6570\u636e\u7684\u5e74\u5ea6\u53d8\u5316\u8d8b\u52bf\u3001\u6bd4\u8f83\u4e0d\u540c\u5e74\u4efd\u7684\u6c14\u5019\u6570\u636e\u7b49\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li><strong>\u65e5\u671f\u683c\u5f0f\u5904\u7406<\/strong><\/li>\n<\/ol>\n<p><p>\u5904\u7406\u65e5\u671f\u6570\u636e\u65f6\uff0c\u786e\u4fdd\u65e5\u671f\u683c\u5f0f\u6b63\u786e\uff0c\u4ee5\u907f\u514d\u63d0\u53d6\u5e74\u4efd\u65f6\u51fa\u73b0\u9519\u8bef\u3002\u4f8b\u5982\uff0c\u5728\u89e3\u6790\u5b57\u7b26\u4e32\u683c\u5f0f\u7684\u65e5\u671f\u65f6\uff0c\u5e94\u786e\u4fdd\u5b57\u7b26\u4e32\u683c\u5f0f\u4e0e\u5b9e\u9645\u65e5\u671f\u683c\u5f0f\u4e00\u81f4\u3002<\/p>\n<\/p>\n<ol start=\"3\">\n<li><strong>\u65f6\u533a\u95ee\u9898<\/strong><\/li>\n<\/ol>\n<p><p>\u4f7f\u7528<code>datetime<\/code>\u6a21\u5757\u65f6\uff0c\u6ce8\u610f\u5904\u7406\u4e0d\u540c\u7684\u65f6\u533a\u95ee\u9898\u3002\u5bf9\u4e8e\u8de8\u65f6\u533a\u7684\u5e94\u7528\uff0c\u5efa\u8bae\u4f7f\u7528<code>pytz<\/code>\u5e93\u6765\u5904\u7406\u65f6\u533a\u8f6c\u6362\u3002<\/p>\n<\/p>\n<ol start=\"4\">\n<li><strong>\u6027\u80fd\u8003\u8651<\/strong><\/li>\n<\/ol>\n<p><p>\u5bf9\u4e8e\u5927\u89c4\u6a21\u6570\u636e\u5904\u7406\uff0c<code>pandas<\/code>\u5e93\u901a\u5e38\u66f4\u4e3a\u9ad8\u6548\uff0c\u56e0\u4e3a\u5b83\u9488\u5bf9\u6570\u636e\u5e27\u548c\u65f6\u95f4\u5e8f\u5217\u6570\u636e\u8fdb\u884c\u4e86\u4f18\u5316\u3002<\/p>\n<\/p>\n<p><p>\u603b\u7ed3\u8d77\u6765\uff0c\u5728Python\u4e2d\u83b7\u53d6\u5e74\u4efd\u7684\u65b9\u6cd5\u591a\u79cd\u591a\u6837\uff0c\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u6570\u636e\u7c7b\u578b\u3002\u65e0\u8bba\u662f\u7b80\u5355\u7684\u65e5\u671f\u64cd\u4f5c\u8fd8\u662f\u590d\u6742\u7684\u65f6\u95f4\u5e8f\u5217\u5206\u6790\uff0cPython\u90fd\u63d0\u4f9b\u4e86\u7075\u6d3b\u7684\u5de5\u5177\u6765\u6ee1\u8db3\u9700\u6c42\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u63d0\u53d6\u65e5\u671f\u4e2d\u7684\u5e74\u4efd\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528datetime\u6a21\u5757\u6765\u63d0\u53d6\u65e5\u671f\u7684\u5e74\u4efd\u3002\u9996\u5148\uff0c\u60a8\u9700\u8981\u5c06\u65e5\u671f\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3adatetime\u5bf9\u8c61\uff0c\u7136\u540e\u4f7f\u7528.year\u5c5e\u6027\u6765\u83b7\u53d6\u5e74\u4efd\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code class=\"language-python\">from datetime import datetime\n\ndate_str = &quot;2023-10-04&quot;\ndate_obj = datetime.strptime(date_str, &quot;%Y-%m-%d&quot;)\nyear = date_obj.year\nprint(year)  # \u8f93\u51fa: 2023\n<\/code><\/pre>\n<p><strong>\u662f\u5426\u53ef\u4ee5\u4ece\u65f6\u95f4\u6233\u4e2d\u83b7\u53d6\u5e74\u4efd\uff1f<\/strong><br \/>\u5f53\u7136\u53ef\u4ee5\u3002\u901a\u8fc7\u5c06\u65f6\u95f4\u6233\u8f6c\u6362\u4e3adatetime\u5bf9\u8c61\uff0c\u53ef\u4ee5\u8f7b\u677e\u63d0\u53d6\u5e74\u4efd\u3002\u4f8b\u5982\uff0c\u4f7f\u7528datetime.fromtimestamp()\u65b9\u6cd5\uff1a<\/p>\n<pre><code class=\"language-python\">import time\nfrom datetime import datetime\n\ntimestamp = time.time()  # \u83b7\u53d6\u5f53\u524d\u65f6\u95f4\u7684\u65f6\u95f4\u6233\ndate_obj = datetime.fromtimestamp(timestamp)\nyear = date_obj.year\nprint(year)  # \u8f93\u51fa\u5f53\u524d\u5e74\u4efd\n<\/code><\/pre>\n<p><strong>\u5728Python\u4e2d\u5904\u7406\u4e0d\u540c\u683c\u5f0f\u7684\u65e5\u671f\u5b57\u7b26\u4e32\u65f6\uff0c\u5982\u4f55\u63d0\u53d6\u5e74\u4efd\uff1f<\/strong><br \/>\u5bf9\u4e8e\u4e0d\u540c\u683c\u5f0f\u7684\u65e5\u671f\u5b57\u7b26\u4e32\uff0c\u53ef\u4ee5\u4f7f\u7528dateutil\u5e93\u7684parser\u6a21\u5757\uff0c\u8be5\u6a21\u5757\u80fd\u591f\u81ea\u52a8\u8bc6\u522b\u65e5\u671f\u683c\u5f0f\u5e76\u63d0\u53d6\u5e74\u4efd\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"language-python\">from dateutil import parser\n\ndate_str = &quot;04-10-2023&quot;  # \u4e0d\u540c\u7684\u65e5\u671f\u683c\u5f0f\ndate_obj = parser.parse(date_str)\nyear = date_obj.year\nprint(year)  # \u8f93\u51fa: 2023\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u4f7f\u5f97\u5904\u7406\u591a\u79cd\u65e5\u671f\u683c\u5f0f\u53d8\u5f97\u7b80\u5355\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u53ea\u83b7\u53d6\u5e74\u4efd\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u5b9e\u73b0\uff0c\u5305\u62ec\u4f7f\u7528datetime\u6a21\u5757\u3001time\u6a21\u5757\u3001pandas\u5e93\u7b49 [&hellip;]","protected":false},"author":3,"featured_media":1005564,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1005559"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1005559"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1005559\/revisions"}],"predecessor-version":[{"id":1005567,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1005559\/revisions\/1005567"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1005564"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1005559"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1005559"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1005559"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}