{"id":1122452,"date":"2025-01-08T19:20:47","date_gmt":"2025-01-08T11:20:47","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1122452.html"},"modified":"2025-01-08T19:20:50","modified_gmt":"2025-01-08T11:20:50","slug":"python%e5%a6%82%e4%bd%95%e5%88%a4%e6%96%ad%e5%88%97%e8%a1%a8%e7%9b%b8%e5%90%8c%e5%85%83%e7%b4%a0%e6%95%b0%e7%9b%ae","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1122452.html","title":{"rendered":"python\u5982\u4f55\u5224\u65ad\u5217\u8868\u76f8\u540c\u5143\u7d20\u6570\u76ee"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25084314\/a4dbd6dc-122e-4e62-8f69-6b57906f8c3c.webp\" alt=\"python\u5982\u4f55\u5224\u65ad\u5217\u8868\u76f8\u540c\u5143\u7d20\u6570\u76ee\" \/><\/p>\n<p><p> <strong>\u8981\u5224\u65adPython\u4e2d\u4e24\u4e2a\u5217\u8868\u4e2d\u76f8\u540c\u5143\u7d20\u7684\u6570\u76ee\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528\u96c6\u5408\u8fdb\u884c\u4ea4\u96c6\u8ba1\u7b97\u3001\u4f7f\u7528Counter\u7c7b\u7edf\u8ba1\u5143\u7d20\u9891\u7387\u3001\u904d\u5386\u5217\u8868\u8fdb\u884c\u624b\u52a8\u8ba1\u6570<\/strong>\u3002\u5176\u4e2d\uff0c<strong>\u4f7f\u7528Counter\u7c7b\u7edf\u8ba1\u5143\u7d20\u9891\u7387<\/strong>\u662f\u4e00\u79cd\u975e\u5e38\u9ad8\u6548\u548c\u7075\u6d3b\u7684\u65b9\u5f0f\u3002Counter\u7c7b\u4f4d\u4e8ecollections\u6a21\u5757\u4e2d\uff0c\u4e13\u95e8\u7528\u4e8e\u8ba1\u6570\u53ef\u54c8\u5e0c\u5bf9\u8c61\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u63cf\u8ff0\u8be5\u65b9\u6cd5\u7684\u6b65\u9aa4\u548c\u793a\u4f8b\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u4f7f\u7528Counter\u7c7b\u7edf\u8ba1\u5143\u7d20\u9891\u7387<\/h3>\n<\/p>\n<p><p>Counter\u7c7b\u53ef\u4ee5\u7edf\u8ba1\u5217\u8868\u4e2d\u6bcf\u4e2a\u5143\u7d20\u51fa\u73b0\u7684\u9891\u7387\uff0c\u7136\u540e\u901a\u8fc7\u5bf9\u4e24\u4e2a\u5217\u8868\u7684Counter\u5bf9\u8c61\u8fdb\u884c\u76f8\u52a0\u6216\u76f8\u4ea4\u64cd\u4f5c\uff0c\u53ef\u4ee5\u8f7b\u677e\u627e\u51fa\u76f8\u540c\u5143\u7d20\u53ca\u5176\u6570\u91cf\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u6b65\u9aa4\u548c\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><h4>1.1 \u5bfc\u5165Counter\u7c7b\u5e76\u521b\u5efaCounter\u5bf9\u8c61<\/h4>\n<\/p>\n<p><p>\u9996\u5148\uff0c\u5bfc\u5165collections\u6a21\u5757\u4e2d\u7684Counter\u7c7b\uff0c\u5e76\u4e3a\u4e24\u4e2a\u5217\u8868\u5206\u522b\u521b\u5efaCounter\u5bf9\u8c61\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from collections import Counter<\/p>\n<p>list1 = [1, 2, 2, 3, 4, 5, 5, 5]<\/p>\n<p>list2 = [2, 3, 3, 5, 5, 6, 7]<\/p>\n<p>counter1 = Counter(list1)<\/p>\n<p>counter2 = Counter(list2)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>1.2 \u8ba1\u7b97\u4e24\u4e2a\u5217\u8868\u7684\u4ea4\u96c6<\/h4>\n<\/p>\n<p><p>\u5229\u7528Counter\u5bf9\u8c61\u7684\u4ea4\u96c6\u64cd\u4f5c\uff08&amp;\uff09\uff0c\u53ef\u4ee5\u5f97\u5230\u4e24\u4e2a\u5217\u8868\u4e2d\u76f8\u540c\u5143\u7d20\u53ca\u5176\u6570\u91cf\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">common_elements = counter1 &amp; counter2<\/p>\n<p>print(common_elements)  # \u8f93\u51fa\uff1aCounter({2: 1, 3: 1, 5: 2})<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>1.3 \u7edf\u8ba1\u76f8\u540c\u5143\u7d20\u7684\u603b\u6570<\/h4>\n<\/p>\n<p><p>\u5c06\u4ea4\u96c6\u7ed3\u679c\u4e2d\u7684\u6240\u6709\u503c\u7d2f\u52a0\uff0c\u5373\u53ef\u5f97\u5230\u4e24\u4e2a\u5217\u8868\u4e2d\u76f8\u540c\u5143\u7d20\u7684\u603b\u6570\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">total_common_elements = sum(common_elements.values())<\/p>\n<p>print(total_common_elements)  # \u8f93\u51fa\uff1a4<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e8c\u3001\u4f7f\u7528\u96c6\u5408\u8fdb\u884c\u4ea4\u96c6\u8ba1\u7b97<\/h3>\n<\/p>\n<p><p>\u96c6\u5408\u662f\u4e00\u79cd\u65e0\u5e8f\u4e14\u4e0d\u91cd\u590d\u7684\u5143\u7d20\u96c6\u5408\uff0c\u5229\u7528\u96c6\u5408\u7684\u4ea4\u96c6\u64cd\u4f5c\u53ef\u4ee5\u5feb\u901f\u627e\u51fa\u4e24\u4e2a\u5217\u8868\u4e2d\u7684\u76f8\u540c\u5143\u7d20\u3002<\/p>\n<\/p>\n<p><h4>2.1 \u8f6c\u6362\u5217\u8868\u4e3a\u96c6\u5408<\/h4>\n<\/p>\n<p><p>\u5c06\u4e24\u4e2a\u5217\u8868\u8f6c\u6362\u4e3a\u96c6\u5408\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">set1 = set(list1)<\/p>\n<p>set2 = set(list2)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>2.2 \u8ba1\u7b97\u96c6\u5408\u7684\u4ea4\u96c6<\/h4>\n<\/p>\n<p><p>\u5229\u7528\u96c6\u5408\u7684\u4ea4\u96c6\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5f97\u5230\u4e24\u4e2a\u5217\u8868\u4e2d\u7684\u76f8\u540c\u5143\u7d20\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">common_elements_set = set1 &amp; set2<\/p>\n<p>print(common_elements_set)  # \u8f93\u51fa\uff1a{2, 3, 5}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>2.3 \u7edf\u8ba1\u76f8\u540c\u5143\u7d20\u7684\u6570\u91cf<\/h4>\n<\/p>\n<p><p>\u76f4\u63a5\u8ba1\u7b97\u4ea4\u96c6\u96c6\u5408\u7684\u957f\u5ea6\u5373\u53ef\u5f97\u5230\u76f8\u540c\u5143\u7d20\u7684\u6570\u91cf\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">total_common_elements_set = len(common_elements_set)<\/p>\n<p>print(total_common_elements_set)  # \u8f93\u51fa\uff1a3<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e09\u3001\u904d\u5386\u5217\u8868\u8fdb\u884c\u624b\u52a8\u8ba1\u6570<\/h3>\n<\/p>\n<p><p>\u624b\u52a8\u904d\u5386\u4e24\u4e2a\u5217\u8868\u5e76\u8ba1\u6570\u867d\u7136\u8f83\u4e3a\u4f4e\u6548\uff0c\u4f46\u5728\u67d0\u4e9b\u7279\u5b9a\u60c5\u51b5\u4e0b\u4ecd\u7136\u9002\u7528\u3002<\/p>\n<\/p>\n<p><h4>3.1 \u521b\u5efa\u7a7a\u5b57\u5178\u7528\u4e8e\u8ba1\u6570<\/h4>\n<\/p>\n<p><p>\u521b\u5efa\u4e00\u4e2a\u7a7a\u5b57\u5178\uff0c\u7528\u4e8e\u5b58\u50a8\u4e24\u4e2a\u5217\u8868\u4e2d\u76f8\u540c\u5143\u7d20\u53ca\u5176\u6570\u91cf\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">element_count = {}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>3.2 \u904d\u5386\u7b2c\u4e00\u4e2a\u5217\u8868\u5e76\u8ba1\u6570<\/h4>\n<\/p>\n<p><p>\u904d\u5386\u7b2c\u4e00\u4e2a\u5217\u8868\uff0c\u5c06\u6bcf\u4e2a\u5143\u7d20\u53ca\u5176\u51fa\u73b0\u7684\u6b21\u6570\u5b58\u5165\u5b57\u5178\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">for element in list1:<\/p>\n<p>    if element in element_count:<\/p>\n<p>        element_count[element][0] += 1<\/p>\n<p>    else:<\/p>\n<p>        element_count[element] = [1, 0]<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>3.3 \u904d\u5386\u7b2c\u4e8c\u4e2a\u5217\u8868\u5e76\u8ba1\u6570<\/h4>\n<\/p>\n<p><p>\u904d\u5386\u7b2c\u4e8c\u4e2a\u5217\u8868\uff0c\u5c06\u6bcf\u4e2a\u5143\u7d20\u53ca\u5176\u51fa\u73b0\u7684\u6b21\u6570\u5b58\u5165\u5b57\u5178\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">for element in list2:<\/p>\n<p>    if element in element_count:<\/p>\n<p>        element_count[element][1] += 1<\/p>\n<p>    else:<\/p>\n<p>        element_count[element] = [0, 1]<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>3.4 \u8ba1\u7b97\u76f8\u540c\u5143\u7d20\u7684\u603b\u6570<\/h4>\n<\/p>\n<p><p>\u904d\u5386\u5b57\u5178\uff0c\u8ba1\u7b97\u4e24\u4e2a\u5217\u8868\u4e2d\u76f8\u540c\u5143\u7d20\u7684\u603b\u6570\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">total_common_elements_manual = 0<\/p>\n<p>for counts in element_count.values():<\/p>\n<p>    total_common_elements_manual += min(counts)<\/p>\n<p>print(total_common_elements_manual)  # \u8f93\u51fa\uff1a4<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u56db\u3001\u603b\u7ed3<\/h3>\n<\/p>\n<p><p>\u901a\u8fc7\u4ee5\u4e0a\u4e09\u79cd\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5224\u65adPython\u4e2d\u4e24\u4e2a\u5217\u8868\u4e2d\u76f8\u540c\u5143\u7d20\u7684\u6570\u76ee\u3002<strong>\u4f7f\u7528Counter\u7c7b\u7edf\u8ba1\u5143\u7d20\u9891\u7387<\/strong>\u7684\u65b9\u6cd5\u4e0d\u4ec5\u7b80\u6d01\u9ad8\u6548\uff0c\u800c\u4e14\u975e\u5e38\u7075\u6d3b\uff0c\u9002\u7528\u4e8e\u5927\u591a\u6570\u60c5\u51b5\u3002<strong>\u4f7f\u7528\u96c6\u5408\u8fdb\u884c\u4ea4\u96c6\u8ba1\u7b97<\/strong>\u7684\u65b9\u6cd5\u5219\u9002\u7528\u4e8e\u53ea\u5173\u5fc3\u76f8\u540c\u5143\u7d20\u7684\u79cd\u7c7b\u800c\u4e0d\u5173\u5fc3\u6570\u91cf\u7684\u573a\u666f\u3002<strong>\u624b\u52a8\u904d\u5386\u5217\u8868\u8fdb\u884c\u8ba1\u6570<\/strong>\u7684\u65b9\u6cd5\u867d\u7136\u8f83\u4e3a\u7e41\u7410\uff0c\u4f46\u5728\u67d0\u4e9b\u7279\u5b9a\u9700\u6c42\u4e0b\u4ecd\u7136\u6709\u5176\u5e94\u7528\u4ef7\u503c\u3002<\/p>\n<\/p>\n<p><p>\u65e0\u8bba\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\uff0c\u90fd\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u548c\u573a\u666f\u7075\u6d3b\u5e94\u7528\u3002\u5728\u5b9e\u9645\u7f16\u7a0b\u4e2d\uff0c\u5e94\u7ed3\u5408\u5177\u4f53\u60c5\u51b5\u9009\u62e9\u6700\u9002\u5408\u7684\u65b9\u6cd5\uff0c\u4ee5\u8fbe\u5230\u6700\u4f73\u7684\u6027\u80fd\u548c\u6548\u679c\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u627e\u51fa\u5217\u8868\u4e2d\u91cd\u590d\u5143\u7d20\u7684\u6570\u91cf\uff1f<\/strong><br \/>\u53ef\u4ee5\u4f7f\u7528<code>collections.Counter<\/code>\u7c7b\u6765\u7edf\u8ba1\u5217\u8868\u4e2d\u6bcf\u4e2a\u5143\u7d20\u7684\u51fa\u73b0\u6b21\u6570\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u4f60\u53ef\u4ee5\u8f7b\u677e\u627e\u51fa\u5217\u8868\u4e2d\u6bcf\u4e2a\u5143\u7d20\u7684\u6570\u91cf\uff0c\u5e76\u8fdb\u4e00\u6b65\u5206\u6790\u54ea\u4e9b\u5143\u7d20\u662f\u91cd\u590d\u7684\u3002<\/p>\n<p><strong>\u6709\u6ca1\u6709\u65b9\u6cd5\u53ef\u4ee5\u6bd4\u8f83\u4e24\u4e2a\u5217\u8868\u4e2d\u76f8\u540c\u5143\u7d20\u7684\u6570\u91cf\uff1f<\/strong><br \/>\u8981\u6bd4\u8f83\u4e24\u4e2a\u5217\u8868\u4e2d\u7684\u76f8\u540c\u5143\u7d20\u6570\u91cf\uff0c\u53ef\u4ee5\u5c06\u5b83\u4eec\u8f6c\u6362\u4e3a\u96c6\u5408\uff0c\u7136\u540e\u4f7f\u7528\u96c6\u5408\u7684\u4ea4\u96c6\u64cd\u4f5c\u6765\u627e\u51fa\u5171\u540c\u5143\u7d20\u3002\u63a5\u7740\uff0c\u53ef\u4ee5\u7528<code>Counter<\/code>\u7c7b\u7edf\u8ba1\u8fd9\u4e9b\u5171\u540c\u5143\u7d20\u5728\u4e24\u4e2a\u5217\u8868\u4e2d\u7684\u51fa\u73b0\u6b21\u6570\uff0c\u4ece\u800c\u5f97\u51fa\u76f8\u540c\u5143\u7d20\u7684\u6570\u91cf\u3002<\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528Python\u6807\u51c6\u5e93\u4e2d\u7684\u5de5\u5177\u6765\u5224\u65ad\u5217\u8868\u4e2d\u7684\u552f\u4e00\u5143\u7d20\u6570\u91cf\uff1f<\/strong><br \/>\u53ef\u4ee5\u5229\u7528Python\u7684<code>set()<\/code>\u51fd\u6570\u5c06\u5217\u8868\u8f6c\u6362\u4e3a\u96c6\u5408\uff0c\u96c6\u5408\u53ea\u4f1a\u4fdd\u7559\u552f\u4e00\u7684\u5143\u7d20\u3002\u901a\u8fc7\u8ba1\u7b97\u96c6\u5408\u7684\u957f\u5ea6\uff0c\u53ef\u4ee5\u5feb\u901f\u5f97\u51fa\u5217\u8868\u4e2d\u552f\u4e00\u5143\u7d20\u7684\u6570\u91cf\uff0c\u4ece\u800c\u5e2e\u52a9\u4f60\u4e86\u89e3\u5217\u8868\u7684\u591a\u6837\u6027\u548c\u91cd\u590d\u60c5\u51b5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u8981\u5224\u65adPython\u4e2d\u4e24\u4e2a\u5217\u8868\u4e2d\u76f8\u540c\u5143\u7d20\u7684\u6570\u76ee\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528\u96c6\u5408\u8fdb\u884c\u4ea4\u96c6\u8ba1\u7b97\u3001\u4f7f\u7528Counter\u7c7b\u7edf\u8ba1 [&hellip;]","protected":false},"author":3,"featured_media":1122458,"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\/1122452"}],"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=1122452"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1122452\/revisions"}],"predecessor-version":[{"id":1122459,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1122452\/revisions\/1122459"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1122458"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1122452"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1122452"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1122452"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}