{"id":175292,"date":"2024-05-08T18:48:39","date_gmt":"2024-05-08T10:48:39","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/175292.html"},"modified":"2024-05-08T18:48:47","modified_gmt":"2024-05-08T10:48:47","slug":"python%e5%a6%82%e4%bd%95%e7%bb%9f%e8%ae%a1%e4%b8%80%e4%b8%aa%e5%ad%97%e7%ac%a6%e4%b8%b2%e4%b8%ad%e5%90%84%e5%ad%97%e7%ac%a6%e7%9a%84%e6%95%b0%e9%87%8f","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/175292.html","title":{"rendered":"python\u5982\u4f55\u7edf\u8ba1\u4e00\u4e2a\u5b57\u7b26\u4e32\u4e2d\u5404\u5b57\u7b26\u7684\u6570\u91cf"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/27053130\/e92ce522-ecc5-4024-9e23-42b7c4b87d3d.webp\" alt=\"python\u5982\u4f55\u7edf\u8ba1\u4e00\u4e2a\u5b57\u7b26\u4e32\u4e2d\u5404\u5b57\u7b26\u7684\u6570\u91cf\" \/><\/p>\n<p><p>\u5728Python\u4e2d\uff0c\u7edf\u8ba1\u4e00\u4e2a\u5b57\u7b26\u4e32\u4e2d\u5404\u5b57\u7b26\u7684\u6570\u91cf\u53ef\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u5b9e\u73b0\uff0c<strong>\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528\u5b57\u5178\u3001<code>collections<\/code>\u6a21\u5757\u7684<code>Counter<\/code>\u7c7b\u3001\u4ee5\u53ca<code>numpy<\/code>\u5e93<\/strong>\u3002\u8fd9\u4e0d\u4ec5\u80fd\u591f\u5e2e\u52a9\u6211\u4eec\u638c\u63e1\u5b57\u7b26\u4e32\u7684\u57fa\u672c\u5904\u7406\u6280\u5de7\uff0c\u4e5f\u662f\u6570\u636e\u5904\u7406\u548c\u5206\u6790\u4e2d\u7684\u4e00\u9879\u57fa\u7840\u80fd\u529b\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5176\u4e2d\u4e00\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528\u5b57\u5178\u3002<\/p>\n<\/p>\n<p><p>\u4f7f\u7528\u5b57\u5178\u6765\u7edf\u8ba1\u5b57\u7b26\u6570\u91cf\u662f\u4e00\u79cd\u76f4\u89c2\u4e14\u9ad8\u6548\u7684\u65b9\u6cd5\u3002\u5728\u5b9e\u73b0\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u904d\u5386\u5b57\u7b26\u4e32\u4e2d\u7684\u6bcf\u4e2a\u5b57\u7b26\uff0c\u5229\u7528\u5b57\u5178\u7684\u952e\u503c\u5bf9\u673a\u5236\u6765\u5bf9\u6bcf\u4e2a\u5b57\u7b26\u7684\u51fa\u73b0\u9891\u7387\u8fdb\u884c\u8ba1\u6570\u3002\u5b57\u5178\u7684\u952e\u4e3a\u5b57\u7b26\u4e32\u4e2d\u7684\u5b57\u7b26\uff0c\u800c\u503c\u5219\u4e3a\u8be5\u5b57\u7b26\u51fa\u73b0\u7684\u6b21\u6570\u3002\u904d\u5386\u8fc7\u7a0b\u4e2d\uff0c\u5982\u679c\u5b57\u7b26\u5df2\u5b58\u5728\u4e8e\u5b57\u5178\u4e2d\uff0c\u5219\u5c06\u5176\u5bf9\u5e94\u7684\u503c\u589e\u52a01\uff1b\u5982\u679c\u5b57\u7b26\u5c1a\u672a\u51fa\u73b0\u5728\u5b57\u5178\u4e2d\uff0c\u5219\u5c06\u5176\u52a0\u5165\u5b57\u5178\uff0c\u521d\u59cb\u503c\u4e3a1\u3002\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u4ee3\u7801\u7b80\u6d01\uff0c\u6613\u4e8e\u7406\u89e3\uff0c\u4e14\u6267\u884c\u6548\u7387\u9ad8\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u4f7f\u7528\u5b57\u5178\u7edf\u8ba1\u5b57\u7b26\u6570\u91cf<\/h3>\n<\/p>\n<p><p>\u9996\u5148\uff0c\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u7a7a\u5b57\u5178\u6765\u5b58\u653e\u5b57\u7b26\u53ca\u5176\u6570\u91cf\uff0c\u7136\u540e\u904d\u5386\u5b57\u7b26\u4e32\u4e2d\u7684\u6bcf\u4e2a\u5b57\u7b26\u3002\u5bf9\u4e8e\u904d\u5386\u5230\u7684\u6bcf\u4e2a\u5b57\u7b26\uff0c\u6211\u4eec\u4f1a\u68c0\u67e5\u5b83\u662f\u5426\u5df2\u7ecf\u4f5c\u4e3a\u952e\u5b58\u5728\u4e8e\u5b57\u5178\u4e2d\u3002\u5982\u679c\u662f\uff0c\u5c31\u5c06\u8be5\u952e\u5bf9\u5e94\u7684\u503c\u52a01\uff1b\u5982\u679c\u4e0d\u662f\uff0c\u5c31\u5c06\u8be5\u5b57\u7b26\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\uff0c\u5e76\u8bbe\u7f6e\u5176\u503c\u4e3a1\u3002\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u4ec5\u9002\u7528\u4e8eASCII\u5b57\u7b26\uff0c\u4e5f\u80fd\u5f88\u597d\u5730\u5904\u7406Unicode\u5b57\u7b26\uff0c\u5305\u62ec\u4e2d\u6587\u5b57\u7b26\u7b49\u3002<\/p>\n<\/p>\n<p><p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u63d0\u4f9b\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\u6765\u6f14\u793a\u8fd9\u4e00\u8fc7\u7a0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def count_characters(s):<\/p>\n<p>    char_count = {}<\/p>\n<p>    for char in s:<\/p>\n<p>        if char in char_count:<\/p>\n<p>            char_count[char] += 1<\/p>\n<p>        else:<\/p>\n<p>            char_count[char] = 1<\/p>\n<p>    return char_count<\/p>\n<h2><strong>\u793a\u4f8b\uff1a<\/strong><\/h2>\n<p>s = &quot;hello world&quot;<\/p>\n<p>print(count_characters(s))<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e8c\u3001\u4f7f\u7528<code>collections.Counter<\/code>\u7c7b<\/h3>\n<\/p>\n<p><p><code>collections<\/code>\u6a21\u5757\u7684<code>Counter<\/code>\u7c7b\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u4e00\u4e2a\u66f4\u4e3a\u65b9\u4fbf\u7684\u89e3\u51b3\u65b9\u6848\u3002<code>Counter<\/code>\u7c7b\u80fd\u591f\u81ea\u52a8\u4e3a\u6211\u4eec\u7edf\u8ba1\u6bcf\u4e2a\u5b57\u7b26\u7684\u6570\u91cf\uff0c\u5e76\u4ee5\u5b57\u5178\u683c\u5f0f\u8fd4\u56de\u7ed3\u679c\uff0c\u51cf\u5c11\u4e86\u6211\u4eec\u624b\u52a8\u7f16\u5199\u5faa\u73af\u548c\u6761\u4ef6\u5224\u65ad\u7684\u9700\u8981\u3002\u8fd9\u79cd\u65b9\u6cd5\u7684\u4ee3\u7801\u66f4\u4e3a\u7b80\u6d01\uff0c\u6267\u884c\u6548\u7387\u4e5f\u975e\u5e38\u9ad8\u3002<\/p>\n<\/p>\n<p><p>\u4f7f\u7528<code>Counter<\/code>\u7c7b\u7684\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from collections import Counter<\/p>\n<p>def count_characters_with_counter(s):<\/p>\n<p>    return Counter(s)<\/p>\n<h2><strong>\u793a\u4f8b\uff1a<\/strong><\/h2>\n<p>s = &quot;hello world&quot;<\/p>\n<p>print(count_characters_with_counter(s))<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e09\u3001\u4f7f\u7528<code>numpy<\/code>\u5e93\u8fdb\u884c\u7edf\u8ba1<\/h3>\n<\/p>\n<p><p>\u5bf9\u4e8e\u6570\u503c\u8ba1\u7b97\u6216\u6570\u636e\u5206\u6790\u9886\u57df\u7684\u5f00\u53d1\u8005\u6765\u8bf4\uff0c<code>numpy<\/code>\u5e93\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u5de5\u5177\u3002\u867d\u7136<code>numpy<\/code>\u5e76\u4e0d\u76f4\u63a5\u63d0\u4f9b\u7edf\u8ba1\u5b57\u7b26\u4e32\u4e2d\u5404\u5b57\u7b26\u6570\u91cf\u7684\u51fd\u6570\uff0c\u4f46\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a<code>numpy<\/code>\u6570\u7ec4\uff0c\u7136\u540e\u5229\u7528<code>numpy<\/code>\u5f3a\u5927\u7684\u6570\u636e\u5904\u7406\u529f\u80fd\u6765\u5b9e\u73b0\u7c7b\u4f3c\u7684\u529f\u80fd\u3002\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u96c6\uff0c\u5c24\u5176\u662f\u5728\u6027\u80fd\u8981\u6c42\u8f83\u9ad8\u7684\u573a\u5408\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u7ed3\u8bba<\/h3>\n<\/p>\n<p><p>\u7edf\u8ba1\u5b57\u7b26\u4e32\u4e2d\u5404\u5b57\u7b26\u7684\u6570\u91cf\u662f\u4e00\u4e2a\u57fa\u7840\u4e14\u5b9e\u7528\u7684\u7f16\u7a0b\u4efb\u52a1\uff0c\u901a\u8fc7\u4f7f\u7528\u5b57\u5178\u3001<code>Counter<\/code>\u7c7b\u6216<code>numpy<\/code>\u5e93\u7b49\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u6027\u80fd\u8981\u6c42\u9009\u62e9\u6700\u9002\u5408\u7684\u5b9e\u73b0\u65b9\u5f0f\u3002\u5728\u65e5\u5e38\u7684\u6570\u636e\u5904\u7406\u548c\u5206\u6790\u5de5\u4f5c\u4e2d\uff0c\u638c\u63e1\u8fd9\u4e9b\u6280\u5de7\u5c06\u6781\u5927\u5730\u63d0\u9ad8\u6211\u4eec\u7684\u5de5\u4f5c\u6548\u7387\u548c\u7f16\u7a0b\u80fd\u529b\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p><strong>Q: \u5728Python\u4e2d\uff0c\u600e\u6837\u7edf\u8ba1\u4e00\u4e2a\u5b57\u7b26\u4e32\u4e2d\u5404\u4e2a\u5b57\u7b26\u7684\u6570\u91cf\uff1f<\/strong><\/p>\n<p><strong>A: \u5982\u4f55\u4f7f\u7528Python\u6765\u8ba1\u7b97\u4e00\u4e2a\u5b57\u7b26\u4e32\u4e2d\u6bcf\u4e2a\u5b57\u7b26\u51fa\u73b0\u7684\u9891\u7387\uff1f<\/strong><\/p>\n<p><strong>Q: \u6709\u4ec0\u4e48\u529e\u6cd5\u53ef\u4ee5\u4f7f\u7528Python\u7edf\u8ba1\u4e00\u4e2a\u5b57\u7b26\u4e32\u4e2d\u6bcf\u4e2a\u5b57\u7b26\u7684\u51fa\u73b0\u6b21\u6570\u5417\uff1f<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u7edf\u8ba1\u4e00\u4e2a\u5b57\u7b26\u4e32\u4e2d\u5404\u5b57\u7b26\u7684\u6570\u91cf\u53ef\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u5b9e\u73b0\uff0c\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528\u5b57\u5178\u3001collectio [&hellip;]","protected":false},"author":3,"featured_media":175309,"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\/175292"}],"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=175292"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/175292\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/175309"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=175292"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=175292"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=175292"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}