{"id":1088785,"date":"2025-01-08T13:47:33","date_gmt":"2025-01-08T05:47:33","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1088785.html"},"modified":"2025-01-08T13:47:35","modified_gmt":"2025-01-08T05:47:35","slug":"python%e5%a6%82%e4%bd%95%e6%b1%82%e9%9b%86%e5%90%88%e4%b8%ad%e7%9a%84%e5%85%83%e7%b4%a0%e4%b8%aa%e6%95%b0-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1088785.html","title":{"rendered":"python\u5982\u4f55\u6c42\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u4e2a\u6570"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24201051\/7d15e784-9ca1-4616-bd66-c4ae241fd765.webp\" alt=\"python\u5982\u4f55\u6c42\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\" \/><\/p>\n<p><p> <strong>Python\u4e2d\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\u6765\u8ba1\u7b97\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\uff0c\u4e3b\u8981\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u51fd\u6570len()\u3001\u8fed\u4ee3\u8ba1\u6570\u3001\u4ee5\u53ca\u96c6\u5408\u7684\u5185\u7f6e\u65b9\u6cd5\u3002<\/strong> \u5176\u4e2d\uff0c\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528Python\u7684\u5185\u7f6e\u51fd\u6570len()\uff0c\u56e0\u4e3a\u5b83\u7b80\u6d01\u9ad8\u6548\uff0c\u80fd\u591f\u76f4\u63a5\u8fd4\u56de\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\u3002\u4e0b\u9762\u6211\u4eec\u5c06\u8be6\u7ec6\u89e3\u91ca\u8fd9\u51e0\u79cd\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001\u4f7f\u7528len()\u51fd\u6570\u6c42\u96c6\u5408\u5143\u7d20\u4e2a\u6570<\/p>\n<\/p>\n<p><p>Python\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5185\u7f6e\u51fd\u6570len()\uff0c\u53ef\u4ee5\u76f4\u63a5\u8fd4\u56de\u96c6\u5408\uff08set\uff09\u4e2d\u5143\u7d20\u7684\u4e2a\u6570\u3002\u8fd9\u662f\u8ba1\u7b97\u96c6\u5408\u957f\u5ea6\u6700\u7b80\u6d01\u3001\u76f4\u63a5\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u5b9a\u4e49\u4e00\u4e2a\u96c6\u5408<\/p>\n<p>my_set = {1, 2, 3, 4, 5}<\/p>\n<h2><strong>\u4f7f\u7528len()\u51fd\u6570\u8ba1\u7b97\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u4e2a\u6570<\/strong><\/h2>\n<p>number_of_elements = len(my_set)<\/p>\n<p>print(&quot;\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\u662f:&quot;, number_of_elements)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7\u4e0a\u8ff0\u4ee3\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0clen()\u51fd\u6570\u53ef\u4ee5\u8f7b\u677e\u83b7\u53d6\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\u3002<strong>\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u52bf\u5728\u4e8e\u5176\u7b80\u5355\u548c\u9ad8\u6548\uff0c\u9002\u5408\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u7684\u4f7f\u7528\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u4e8c\u3001\u4f7f\u7528\u8fed\u4ee3\u8ba1\u6570<\/p>\n<\/p>\n<p><p>\u5c3d\u7ba1len()\u662f\u6700\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u6709\u65f6\u6211\u4eec\u53ef\u80fd\u9700\u8981\u7528\u8fed\u4ee3\u7684\u65b9\u6cd5\u6765\u8ba1\u7b97\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\uff0c\u4f8b\u5982\u5728\u4e00\u4e9b\u7279\u5b9a\u7684\u7b97\u6cd5\u4e2d\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u904d\u5386\u96c6\u5408\u5e76\u8ba1\u6570\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u5b9a\u4e49\u4e00\u4e2a\u96c6\u5408<\/p>\n<p>my_set = {1, 2, 3, 4, 5}<\/p>\n<h2><strong>\u521d\u59cb\u5316\u8ba1\u6570\u5668<\/strong><\/h2>\n<p>count = 0<\/p>\n<h2><strong>\u901a\u8fc7\u904d\u5386\u96c6\u5408\u8ba1\u7b97\u5143\u7d20\u4e2a\u6570<\/strong><\/h2>\n<p>for element in my_set:<\/p>\n<p>    count += 1<\/p>\n<p>print(&quot;\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\u662f:&quot;, count)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u867d\u7136\u4e0d\u5982len()\u51fd\u6570\u7b80\u6d01\uff0c\u4f46\u5728\u67d0\u4e9b\u7279\u5b9a\u573a\u666f\u4e0b\u53ef\u80fd\u66f4\u9002\u7528\uff0c\u4f8b\u5982\u9700\u8981\u5728\u904d\u5386\u8fc7\u7a0b\u4e2d\u8fdb\u884c\u5176\u4ed6\u64cd\u4f5c\u65f6\u3002<\/p>\n<\/p>\n<p><p>\u4e09\u3001\u4f7f\u7528\u96c6\u5408\u7684\u5185\u7f6e\u65b9\u6cd5<\/p>\n<\/p>\n<p><p>\u867d\u7136\u96c6\u5408\u6ca1\u6709\u76f4\u63a5\u63d0\u4f9b\u8ba1\u7b97\u5143\u7d20\u4e2a\u6570\u7684\u65b9\u6cd5\uff0c\u4f46\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5176\u4ed6\u96c6\u5408\u64cd\u4f5c\u95f4\u63a5\u83b7\u5f97\u3002\u4f8b\u5982\uff0c\u901a\u8fc7\u5c06\u96c6\u5408\u8f6c\u6362\u4e3a\u5217\u8868\u6216\u5176\u4ed6\u53ef\u8fed\u4ee3\u5bf9\u8c61\uff0c\u7136\u540e\u4f7f\u7528len()\u51fd\u6570\u6765\u8ba1\u7b97\u5143\u7d20\u4e2a\u6570\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u5b9a\u4e49\u4e00\u4e2a\u96c6\u5408<\/p>\n<p>my_set = {1, 2, 3, 4, 5}<\/p>\n<h2><strong>\u5c06\u96c6\u5408\u8f6c\u6362\u4e3a\u5217\u8868\uff0c\u7136\u540e\u8ba1\u7b97\u5143\u7d20\u4e2a\u6570<\/strong><\/h2>\n<p>number_of_elements = len(list(my_set))<\/p>\n<p>print(&quot;\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\u662f:&quot;, number_of_elements)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u867d\u7136\u8fd9\u79cd\u65b9\u6cd5\u5e76\u4e0d\u5e38\u7528\uff0c\u4f46\u5728\u67d0\u4e9b\u7279\u5b9a\u9700\u6c42\u4e0b\u4ecd\u7136\u53ef\u4ee5\u4f5c\u4e3a\u4e00\u79cd\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<\/p>\n<p><p>\u56db\u3001\u5904\u7406\u5d4c\u5957\u96c6\u5408<\/p>\n<\/p>\n<p><p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6211\u4eec\u6709\u65f6\u4f1a\u9047\u5230\u5d4c\u5957\u96c6\u5408\u7684\u60c5\u51b5\uff0c\u5373\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u672c\u8eab\u4e5f\u662f\u96c6\u5408\u3002\u8fd9\u65f6\uff0c\u6211\u4eec\u9700\u8981\u5bf9\u6bcf\u4e00\u4e2a\u5b50\u96c6\u5408\u8fdb\u884c\u8ba1\u6570\uff0c\u7136\u540e\u7d2f\u52a0\u5f97\u5230\u603b\u7684\u5143\u7d20\u4e2a\u6570\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u5b9a\u4e49\u4e00\u4e2a\u5d4c\u5957\u96c6\u5408<\/p>\n<p>nested_set = {frozenset({1, 2}), frozenset({3, 4}), frozenset({5})}<\/p>\n<h2><strong>\u8ba1\u7b97\u5d4c\u5957\u96c6\u5408\u4e2d\u6240\u6709\u5b50\u96c6\u5408\u7684\u5143\u7d20\u4e2a\u6570<\/strong><\/h2>\n<p>total_count = sum(len(sub_set) for sub_set in nested_set)<\/p>\n<p>print(&quot;\u5d4c\u5957\u96c6\u5408\u4e2d\u6240\u6709\u5b50\u96c6\u5408\u7684\u5143\u7d20\u603b\u4e2a\u6570\u662f:&quot;, total_count)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7\u4e0a\u8ff0\u4ee3\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u5982\u4f55\u5904\u7406\u5d4c\u5957\u96c6\u5408\u7684\u5143\u7d20\u8ba1\u6570\u95ee\u9898\u3002<strong>\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u9700\u8981\u5904\u7406\u590d\u6742\u96c6\u5408\u7ed3\u6784\u7684\u573a\u666f\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u4e94\u3001\u4f7f\u7528\u9012\u5f52\u5904\u7406\u5d4c\u5957\u96c6\u5408<\/p>\n<\/p>\n<p><p>\u5728\u4e00\u4e9b\u590d\u6742\u7684\u5d4c\u5957\u96c6\u5408\u7ed3\u6784\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u9012\u5f52\u6765\u5904\u7406\u5143\u7d20\u7684\u8ba1\u6570\u95ee\u9898\u3002\u9012\u5f52\u65b9\u6cd5\u53ef\u4ee5\u6709\u6548\u5730\u5904\u7406\u4efb\u610f\u6df1\u5ea6\u7684\u5d4c\u5957\u96c6\u5408\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u5b9a\u4e49\u4e00\u4e2a\u9012\u5f52\u51fd\u6570\u6765\u8ba1\u7b97\u5d4c\u5957\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u4e2a\u6570<\/p>\n<p>def count_elements(nested_set):<\/p>\n<p>    total_count = 0<\/p>\n<p>    for element in nested_set:<\/p>\n<p>        if isinstance(element, set):<\/p>\n<p>            total_count += count_elements(element)<\/p>\n<p>        else:<\/p>\n<p>            total_count += 1<\/p>\n<p>    return total_count<\/p>\n<h2><strong>\u5b9a\u4e49\u4e00\u4e2a\u5d4c\u5957\u96c6\u5408<\/strong><\/h2>\n<p>nested_set = {1, 2, {3, 4, {5, 6}}, 7}<\/p>\n<h2><strong>\u8ba1\u7b97\u5d4c\u5957\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u4e2a\u6570<\/strong><\/h2>\n<p>number_of_elements = count_elements(nested_set)<\/p>\n<p>print(&quot;\u5d4c\u5957\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u603b\u4e2a\u6570\u662f:&quot;, number_of_elements)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7\u4e0a\u8ff0\u4ee3\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u9012\u5f52\u65b9\u6cd5\u5982\u4f55\u5904\u7406\u5d4c\u5957\u96c6\u5408\u7684\u5143\u7d20\u8ba1\u6570\u95ee\u9898\u3002<strong>\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u9700\u8981\u5904\u7406\u590d\u6742\u5d4c\u5957\u7ed3\u6784\u7684\u573a\u666f\uff0c\u5177\u6709\u8f83\u5f3a\u7684\u7075\u6d3b\u6027\u548c\u9002\u5e94\u6027\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u516d\u3001\u8ba1\u7b97\u96c6\u5408\u7684\u5e76\u96c6\u3001\u4ea4\u96c6\u548c\u5dee\u96c6\u4e2d\u7684\u5143\u7d20\u4e2a\u6570<\/p>\n<\/p>\n<p><p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u8ba1\u7b97\u4e24\u4e2a\u6216\u591a\u4e2a\u96c6\u5408\u7684\u5e76\u96c6\u3001\u4ea4\u96c6\u6216\u5dee\u96c6\uff0c\u5e76\u7edf\u8ba1\u5176\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\u3002Python\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u96c6\u5408\u64cd\u4f5c\u51fd\u6570\uff0c\u80fd\u591f\u65b9\u4fbf\u5730\u5b9e\u73b0\u8fd9\u4e9b\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<ol>\n<li>\u8ba1\u7b97\u5e76\u96c6\u4e2d\u7684\u5143\u7d20\u4e2a\u6570<\/li>\n<\/ol>\n<p><pre><code class=\"language-python\"># \u5b9a\u4e49\u4e24\u4e2a\u96c6\u5408<\/p>\n<p>set1 = {1, 2, 3}<\/p>\n<p>set2 = {3, 4, 5}<\/p>\n<h2><strong>\u8ba1\u7b97\u4e24\u4e2a\u96c6\u5408\u7684\u5e76\u96c6<\/strong><\/h2>\n<p>union_set = set1.union(set2)<\/p>\n<h2><strong>\u8ba1\u7b97\u5e76\u96c6\u4e2d\u7684\u5143\u7d20\u4e2a\u6570<\/strong><\/h2>\n<p>number_of_elements_in_union = len(union_set)<\/p>\n<p>print(&quot;\u5e76\u96c6\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\u662f:&quot;, number_of_elements_in_union)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li>\u8ba1\u7b97\u4ea4\u96c6\u4e2d\u7684\u5143\u7d20\u4e2a\u6570<\/li>\n<\/ol>\n<p><pre><code class=\"language-python\"># \u5b9a\u4e49\u4e24\u4e2a\u96c6\u5408<\/p>\n<p>set1 = {1, 2, 3}<\/p>\n<p>set2 = {3, 4, 5}<\/p>\n<h2><strong>\u8ba1\u7b97\u4e24\u4e2a\u96c6\u5408\u7684\u4ea4\u96c6<\/strong><\/h2>\n<p>intersection_set = set1.intersection(set2)<\/p>\n<h2><strong>\u8ba1\u7b97\u4ea4\u96c6\u4e2d\u7684\u5143\u7d20\u4e2a\u6570<\/strong><\/h2>\n<p>number_of_elements_in_intersection = len(intersection_set)<\/p>\n<p>print(&quot;\u4ea4\u96c6\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\u662f:&quot;, number_of_elements_in_intersection)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"3\">\n<li>\u8ba1\u7b97\u5dee\u96c6\u4e2d\u7684\u5143\u7d20\u4e2a\u6570<\/li>\n<\/ol>\n<p><pre><code class=\"language-python\"># \u5b9a\u4e49\u4e24\u4e2a\u96c6\u5408<\/p>\n<p>set1 = {1, 2, 3}<\/p>\n<p>set2 = {3, 4, 5}<\/p>\n<h2><strong>\u8ba1\u7b97\u4e24\u4e2a\u96c6\u5408\u7684\u5dee\u96c6<\/strong><\/h2>\n<p>difference_set = set1.difference(set2)<\/p>\n<h2><strong>\u8ba1\u7b97\u5dee\u96c6\u4e2d\u7684\u5143\u7d20\u4e2a\u6570<\/strong><\/h2>\n<p>number_of_elements_in_difference = len(difference_set)<\/p>\n<p>print(&quot;\u5dee\u96c6\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\u662f:&quot;, number_of_elements_in_difference)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7\u4e0a\u8ff0\u4ee3\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u5b9e\u73b0\u5bf9\u96c6\u5408\u5e76\u96c6\u3001\u4ea4\u96c6\u548c\u5dee\u96c6\u7684\u8ba1\u7b97\uff0c\u5e76\u7edf\u8ba1\u5176\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\u3002<strong>\u8fd9\u4e9b\u64cd\u4f5c\u5728\u6570\u636e\u5206\u6790\u548c\u5904\u7406\u8fc7\u7a0b\u4e2d\u975e\u5e38\u5e38\u7528\uff0c\u80fd\u591f\u5e2e\u52a9\u6211\u4eec\u5feb\u901f\u83b7\u53d6\u6240\u9700\u7684\u4fe1\u606f\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u4e03\u3001\u5904\u7406\u5927\u89c4\u6a21\u96c6\u5408<\/p>\n<\/p>\n<p><p>\u5728\u5904\u7406\u5927\u89c4\u6a21\u96c6\u5408\u65f6\uff0c\u8ba1\u7b97\u5143\u7d20\u4e2a\u6570\u53ef\u80fd\u4f1a\u6d89\u53ca\u6027\u80fd\u4f18\u5316\u95ee\u9898\u3002Python\u63d0\u4f9b\u4e86\u4e00\u4e9b\u65b9\u6cd5\u548c\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u4f18\u5316\u96c6\u5408\u64cd\u4f5c\uff0c\u63d0\u9ad8\u8ba1\u7b97\u6548\u7387\u3002<\/p>\n<\/p>\n<ol>\n<li>\u4f7f\u7528\u751f\u6210\u5668\u8868\u8fbe\u5f0f<\/li>\n<\/ol>\n<p><p>\u751f\u6210\u5668\u8868\u8fbe\u5f0f\u53ef\u4ee5\u5728\u5904\u7406\u5927\u89c4\u6a21\u96c6\u5408\u65f6\u8282\u7701\u5185\u5b58\uff0c\u63d0\u9ad8\u8ba1\u7b97\u6548\u7387\u3002\u76f8\u6bd4\u5217\u8868\u89e3\u6790\uff0c\u751f\u6210\u5668\u8868\u8fbe\u5f0f\u4e0d\u4f1a\u4e00\u6b21\u6027\u751f\u6210\u6240\u6709\u5143\u7d20\uff0c\u800c\u662f\u6309\u9700\u751f\u6210\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u5b9a\u4e49\u4e00\u4e2a\u5927\u89c4\u6a21\u96c6\u5408<\/p>\n<p>large_set = {i for i in range(1000000)}<\/p>\n<h2><strong>\u4f7f\u7528\u751f\u6210\u5668\u8868\u8fbe\u5f0f\u8ba1\u7b97\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u4e2a\u6570<\/strong><\/h2>\n<p>number_of_elements = sum(1 for _ in large_set)<\/p>\n<p>print(&quot;\u5927\u89c4\u6a21\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\u662f:&quot;, number_of_elements)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li>\u4f7f\u7528\u5e76\u884c\u8ba1\u7b97<\/li>\n<\/ol>\n<p><p>\u5bf9\u4e8e\u7279\u522b\u5927\u7684\u96c6\u5408\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u5e76\u884c\u8ba1\u7b97\u6765\u52a0\u901f\u5143\u7d20\u4e2a\u6570\u7684\u7edf\u8ba1\u3002Python\u7684multiprocessing\u6a21\u5757\u63d0\u4f9b\u4e86\u5e76\u884c\u8ba1\u7b97\u7684\u652f\u6301\uff0c\u53ef\u4ee5\u5229\u7528\u591a\u6838CPU\u7684\u4f18\u52bf\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import multiprocessing<\/p>\n<h2><strong>\u5b9a\u4e49\u4e00\u4e2a\u5927\u89c4\u6a21\u96c6\u5408<\/strong><\/h2>\n<p>large_set = {i for i in range(1000000)}<\/p>\n<h2><strong>\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u6765\u8ba1\u7b97\u90e8\u5206\u96c6\u5408\u7684\u5143\u7d20\u4e2a\u6570<\/strong><\/h2>\n<p>def count_partial_elements(sub_set):<\/p>\n<p>    return len(sub_set)<\/p>\n<h2><strong>\u5c06\u96c6\u5408\u5206\u5272\u6210\u591a\u4e2a\u5b50\u96c6\u5408<\/strong><\/h2>\n<p>num_chunks = multiprocessing.cpu_count()<\/p>\n<p>chunk_size = len(large_set) \/\/ num_chunks<\/p>\n<p>chunks = [set(list(large_set)[i*chunk_size:(i+1)*chunk_size]) for i in range(num_chunks)]<\/p>\n<h2><strong>\u4f7f\u7528\u591a\u8fdb\u7a0b\u8ba1\u7b97\u6bcf\u4e2a\u5b50\u96c6\u5408\u7684\u5143\u7d20\u4e2a\u6570<\/strong><\/h2>\n<p>with multiprocessing.Pool(num_chunks) as pool:<\/p>\n<p>    partial_counts = pool.map(count_partial_elements, chunks)<\/p>\n<h2><strong>\u8ba1\u7b97\u603b\u7684\u5143\u7d20\u4e2a\u6570<\/strong><\/h2>\n<p>total_count = sum(partial_counts)<\/p>\n<p>print(&quot;\u5927\u89c4\u6a21\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u603b\u4e2a\u6570\u662f:&quot;, total_count)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7\u4e0a\u8ff0\u4ee3\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u5982\u4f55\u4f7f\u7528\u751f\u6210\u5668\u8868\u8fbe\u5f0f\u548c\u5e76\u884c\u8ba1\u7b97\u6765\u4f18\u5316\u5927\u89c4\u6a21\u96c6\u5408\u7684\u5143\u7d20\u8ba1\u6570\u3002<strong>\u8fd9\u4e9b\u65b9\u6cd5\u5728\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u65f6\u975e\u5e38\u6709\u6548\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u8ba1\u7b97\u6027\u80fd\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u603b\u7ed3\uff1a<\/p>\n<\/p>\n<p><p>\u672c\u6587\u4ecb\u7ecd\u4e86\u5728Python\u4e2d\u8ba1\u7b97\u96c6\u5408\u4e2d\u5143\u7d20\u4e2a\u6570\u7684\u591a\u79cd\u65b9\u6cd5\uff0c\u5305\u62ec\u4f7f\u7528len()\u51fd\u6570\u3001\u8fed\u4ee3\u8ba1\u6570\u3001\u96c6\u5408\u7684\u5185\u7f6e\u65b9\u6cd5\u3001\u5904\u7406\u5d4c\u5957\u96c6\u5408\u3001\u9012\u5f52\u65b9\u6cd5\u3001\u8ba1\u7b97\u96c6\u5408\u7684\u5e76\u96c6\u4ea4\u96c6\u5dee\u96c6\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\u3001\u4ee5\u53ca\u4f18\u5316\u5927\u89c4\u6a21\u96c6\u5408\u7684\u8ba1\u6570\u65b9\u6cd5\u3002<strong>\u8fd9\u4e9b\u65b9\u6cd5\u5404\u6709\u4f18\u52a3\uff0c\u9002\u7528\u4e8e\u4e0d\u540c\u7684\u573a\u666f\uff0c\u7406\u89e3\u5e76\u7075\u6d3b\u8fd0\u7528\u8fd9\u4e9b\u65b9\u6cd5\u5c06\u6709\u52a9\u4e8e\u63d0\u9ad8\u6211\u4eec\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u7684\u6570\u636e\u5904\u7406\u80fd\u529b\u3002<\/strong><\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u5feb\u901f\u8ba1\u7b97\u96c6\u5408\u7684\u5143\u7d20\u6570\u91cf\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u8ba1\u7b97\u96c6\u5408\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u975e\u5e38\u7b80\u5355\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684<code>len()<\/code>\u51fd\u6570\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u6709\u4e00\u4e2a\u96c6\u5408<code>my_set = {1, 2, 3, 4}<\/code>\uff0c\u4f60\u53ea\u9700\u8c03\u7528<code>len(my_set)<\/code>\uff0c\u7ed3\u679c\u5c06\u8fd4\u56de4\uff0c\u56e0\u4e3a\u96c6\u5408\u4e2d\u6709\u56db\u4e2a\u5143\u7d20\u3002\u8fd9\u4e2a\u65b9\u6cd5\u9ad8\u6548\u4e14\u6613\u4e8e\u4f7f\u7528\uff0c\u9002\u7528\u4e8e\u4efb\u4f55\u96c6\u5408\u7c7b\u578b\u3002<\/p>\n<p><strong>Python\u4e2d\u7684\u96c6\u5408\u4e0e\u5217\u8868\u7684\u5143\u7d20\u8ba1\u6570\u6709\u4f55\u4e0d\u540c\uff1f<\/strong><br \/>\u96c6\u5408\u4e0e\u5217\u8868\u5728\u5143\u7d20\u8ba1\u6570\u65b9\u9762\u7684\u4e3b\u8981\u533a\u522b\u5728\u4e8e\u96c6\u5408\u4e0d\u5141\u8bb8\u91cd\u590d\u5143\u7d20\u3002\u4f7f\u7528\u96c6\u5408\u65f6\uff0c<code>len()<\/code>\u51fd\u6570\u8fd4\u56de\u7684\u662f\u552f\u4e00\u5143\u7d20\u7684\u6570\u91cf\uff0c\u800c\u5728\u5217\u8868\u4e2d\uff0c\u91cd\u590d\u5143\u7d20\u4e5f\u4f1a\u88ab\u8ba1\u7b97\u5728\u5185\u3002\u5982\u679c\u4f60\u9700\u8981\u8ba1\u7b97\u5217\u8868\u4e2d\u7684\u552f\u4e00\u5143\u7d20\u6570\u91cf\uff0c\u53ef\u4ee5\u5148\u5c06\u5217\u8868\u8f6c\u6362\u4e3a\u96c6\u5408\uff0c\u7136\u540e\u4f7f\u7528<code>len()<\/code>\u51fd\u6570\u3002<\/p>\n<p><strong>\u5982\u4f55\u5904\u7406\u7a7a\u96c6\u5408\u7684\u5143\u7d20\u8ba1\u6570\uff1f<\/strong><br \/>\u5bf9\u4e8e\u4e00\u4e2a\u7a7a\u96c6\u5408\uff0c\u4f7f\u7528<code>len()<\/code>\u51fd\u6570\u4f1a\u8fd4\u56de0\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u521b\u5efa\u4e00\u4e2a\u7a7a\u96c6\u5408<code>empty_set = set()<\/code>\uff0c\u8c03\u7528<code>len(empty_set)<\/code>\u5c06\u5f97\u52300\u3002\u8fd9\u8868\u660e\u96c6\u5408\u4e2d\u6ca1\u6709\u4efb\u4f55\u5143\u7d20\uff0c\u56e0\u6b64\u5728\u5904\u7406\u96c6\u5408\u65f6\uff0c\u786e\u4fdd\u8003\u8651\u5230\u7a7a\u96c6\u5408\u7684\u60c5\u51b5\uff0c\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u9519\u8bef\u6216\u5f02\u5e38\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u4e2d\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\u6765\u8ba1\u7b97\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\uff0c\u4e3b\u8981\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u51fd\u6570len()\u3001\u8fed\u4ee3\u8ba1\u6570\u3001\u4ee5\u53ca\u96c6\u5408\u7684 [&hellip;]","protected":false},"author":3,"featured_media":1088794,"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\/1088785"}],"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=1088785"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1088785\/revisions"}],"predecessor-version":[{"id":1088796,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1088785\/revisions\/1088796"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1088794"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1088785"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1088785"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1088785"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}