{"id":958081,"date":"2024-12-27T03:15:01","date_gmt":"2024-12-26T19:15:01","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/958081.html"},"modified":"2024-12-27T03:15:05","modified_gmt":"2024-12-26T19:15:05","slug":"python%e5%a6%82%e4%bd%95%e6%9f%a5%e7%9c%8b%e6%96%87%e4%bb%b6%e6%95%b0","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/958081.html","title":{"rendered":"python\u5982\u4f55\u67e5\u770b\u6587\u4ef6\u6570"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25101219\/b335801b-6f68-43a0-ad39-e240889ab2ed.webp\" alt=\"python\u5982\u4f55\u67e5\u770b\u6587\u4ef6\u6570\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\u67e5\u770b\u6587\u4ef6\u6570\u6709\u591a\u79cd\u65b9\u6cd5\uff0c\u5305\u62ec\u4f7f\u7528os\u6a21\u5757\u3001glob\u6a21\u5757\u3001pathlib\u6a21\u5757\u7b49\u3002os\u6a21\u5757\u63d0\u4f9b\u4e86\u8bbf\u95ee\u64cd\u4f5c\u7cfb\u7edf\u529f\u80fd\u7684\u63a5\u53e3\u3001glob\u6a21\u5757\u7528\u4e8e\u67e5\u627e\u7b26\u5408\u7279\u5b9a\u6a21\u5f0f\u7684\u6587\u4ef6\u8def\u5f84\u3001pathlib\u6a21\u5757\u5219\u662f\u9762\u5411\u5bf9\u8c61\u7684\u6587\u4ef6\u7cfb\u7edf\u8def\u5f84\u64cd\u4f5c\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\u6765\u67e5\u770b\u7279\u5b9a\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\u6570\u91cf\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u4e00\u3001OS\u6a21\u5757<\/p>\n<\/p>\n<p><p>os\u6a21\u5757\u662fPython\u6807\u51c6\u5e93\u4e2d\u7528\u4e8e\u4e0e\u64cd\u4f5c\u7cfb\u7edf\u4ea4\u4e92\u7684\u6a21\u5757\u3002\u5b83\u63d0\u4f9b\u4e86\u8bbf\u95ee\u6587\u4ef6\u7cfb\u7edf\u3001\u6267\u884c\u64cd\u4f5c\u7cfb\u7edf\u547d\u4ee4\u7b49\u529f\u80fd\u3002\u4f7f\u7528os\u6a21\u5757\u67e5\u770b\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\u6570\u662f\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u4e4b\u4e00\u3002\u901a\u8fc7os\u6a21\u5757\u4e2d\u7684os.listdir()\u51fd\u6570\u53ef\u4ee5\u5217\u51fa\u6307\u5b9a\u76ee\u5f55\u4e2d\u7684\u6240\u6709\u6587\u4ef6\u548c\u5b50\u76ee\u5f55\uff0c\u7136\u540e\u901a\u8fc7\u5bf9\u8fd9\u4e9b\u5217\u8868\u8fdb\u884c\u8fc7\u6ee4\u6765\u8ba1\u7b97\u6587\u4ef6\u7684\u6570\u91cf\u3002<\/p>\n<\/p>\n<p><p>1.1 \u4f7f\u7528os.listdir()<\/p>\n<\/p>\n<p><p>os.listdir()\u51fd\u6570\u53ef\u4ee5\u5217\u51fa\u6307\u5b9a\u76ee\u5f55\u4e2d\u7684\u6240\u6709\u6587\u4ef6\u548c\u5b50\u76ee\u5f55\u3002\u901a\u8fc7\u8fc7\u6ee4\u6389\u5b50\u76ee\u5f55\u53ef\u4ee5\u5f97\u5230\u6587\u4ef6\u7684\u6570\u91cf\u3002\u4ee5\u4e0b\u662f\u5177\u4f53\u5b9e\u73b0\u65b9\u6cd5\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import os<\/p>\n<p>def count_files_in_directory(directory):<\/p>\n<p>    files = os.listdir(directory)<\/p>\n<p>    file_count = len([file for file in files if os.path.isfile(os.path.join(directory, file))])<\/p>\n<p>    return file_count<\/p>\n<p>directory_path = &#39;\/path\/to\/directory&#39;<\/p>\n<p>print(f&#39;Number of files in directory: {count_files_in_directory(directory_path)}&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c<code>os.path.isfile()<\/code>\u7528\u4e8e\u5224\u65ad\u76ee\u5f55\u4e2d\u7684\u67d0\u4e2a\u6761\u76ee\u662f\u5426\u4e3a\u6587\u4ef6\u3002<\/p>\n<\/p>\n<p><p>1.2 \u4f7f\u7528os.walk()<\/p>\n<\/p>\n<p><p>os.walk()\u51fd\u6570\u53ef\u4ee5\u9012\u5f52\u5730\u904d\u5386\u76ee\u5f55\u6811\uff0c\u8fd4\u56de\u6bcf\u4e2a\u76ee\u5f55\u4e2d\u7684\u6587\u4ef6\u548c\u5b50\u76ee\u5f55\u3002\u901a\u8fc7\u904d\u5386\u8fd4\u56de\u7684\u7ed3\u679c\u53ef\u4ee5\u7edf\u8ba1\u6587\u4ef6\u7684\u6570\u91cf\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import os<\/p>\n<p>def count_files_with_os_walk(directory):<\/p>\n<p>    file_count = 0<\/p>\n<p>    for _, _, files in os.walk(directory):<\/p>\n<p>        file_count += len(files)<\/p>\n<p>    return file_count<\/p>\n<p>directory_path = &#39;\/path\/to\/directory&#39;<\/p>\n<p>print(f&#39;Total number of files: {count_files_with_os_walk(directory_path)}&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>os.walk()\u975e\u5e38\u9002\u5408\u7528\u4e8e\u904d\u5386\u5305\u542b\u591a\u4e2a\u5b50\u76ee\u5f55\u7684\u76ee\u5f55\u6811\uff0c\u56e0\u4e3a\u5b83\u4f1a\u81ea\u52a8\u9012\u5f52\u904d\u5386\u6240\u6709\u5b50\u76ee\u5f55\u3002<\/p>\n<\/p>\n<p><p>\u4e8c\u3001GLOB\u6a21\u5757<\/p>\n<\/p>\n<p><p>glob\u6a21\u5757\u63d0\u4f9b\u4e86\u67e5\u627e\u7b26\u5408\u7279\u5b9a\u6a21\u5f0f\u7684\u6587\u4ef6\u8def\u5f84\u7684\u529f\u80fd\u3002\u5b83\u652f\u6301Unix\u98ce\u683c\u7684\u8def\u5f84\u540d\u6a21\u5f0f\u6269\u5c55\u3002\u4f7f\u7528glob\u6a21\u5757\u53ef\u4ee5\u975e\u5e38\u65b9\u4fbf\u5730\u7edf\u8ba1\u7279\u5b9a\u7c7b\u578b\u6587\u4ef6\u7684\u6570\u91cf\u3002<\/p>\n<\/p>\n<p><p>2.1 \u4f7f\u7528glob.glob()<\/p>\n<\/p>\n<p><p>glob.glob()\u51fd\u6570\u7528\u4e8e\u67e5\u627e\u7b26\u5408\u7279\u5b9a\u6a21\u5f0f\u7684\u6587\u4ef6\u8def\u5f84\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528glob\u6a21\u5757\u7edf\u8ba1\u6587\u4ef6\u6570\u91cf\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import glob<\/p>\n<p>def count_files_with_glob(directory, pattern=&#39;*&#39;):<\/p>\n<p>    files = glob.glob(f&#39;{directory}\/{pattern}&#39;)<\/p>\n<p>    return len(files)<\/p>\n<p>directory_path = &#39;\/path\/to\/directory&#39;<\/p>\n<p>print(f&#39;Number of files with glob: {count_files_with_glob(directory_path)}&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c<code>*<\/code>\u8868\u793a\u5339\u914d\u6240\u6709\u6587\u4ef6\u3002\u5982\u679c\u53ea\u60f3\u5339\u914d\u7279\u5b9a\u7c7b\u578b\u7684\u6587\u4ef6\uff0c\u6bd4\u5982<code>.txt<\/code>\u6587\u4ef6\uff0c\u53ef\u4ee5\u5c06<code>pattern<\/code>\u53c2\u6570\u8bbe\u7f6e\u4e3a<code>&#39;*.txt&#39;<\/code>\u3002<\/p>\n<\/p>\n<p><p>\u4e09\u3001PATHLIB\u6a21\u5757<\/p>\n<\/p>\n<p><p>pathlib\u662fPython 3.4\u5f15\u5165\u7684\u6a21\u5757\uff0c\u63d0\u4f9b\u4e86\u9762\u5411\u5bf9\u8c61\u7684\u6587\u4ef6\u7cfb\u7edf\u8def\u5f84\u64cd\u4f5c\u3002\u76f8\u6bd4\u4e8eos\u6a21\u5757\uff0cpathlib\u7684API\u66f4\u52a0\u76f4\u89c2\uff0c\u4ee3\u7801\u53ef\u8bfb\u6027\u66f4\u9ad8\u3002<\/p>\n<\/p>\n<p><p>3.1 \u4f7f\u7528pathlib.Path<\/p>\n<\/p>\n<p><p>pathlib.Path\u5bf9\u8c61\u53ef\u4ee5\u7528\u4e8e\u8def\u5f84\u64cd\u4f5c\uff0c\u5305\u62ec\u8ba1\u7b97\u76ee\u5f55\u4e2d\u7684\u6587\u4ef6\u6570\u91cf\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528pathlib\u7edf\u8ba1\u6587\u4ef6\u6570\u91cf\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from pathlib import Path<\/p>\n<p>def count_files_with_pathlib(directory):<\/p>\n<p>    directory_path = Path(directory)<\/p>\n<p>    file_count = len([file for file in directory_path.iterdir() if file.is_file()])<\/p>\n<p>    return file_count<\/p>\n<p>directory_path = &#39;\/path\/to\/directory&#39;<\/p>\n<p>print(f&#39;Number of files with pathlib: {count_files_with_pathlib(directory_path)}&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c<code>iterdir()<\/code>\u65b9\u6cd5\u7528\u4e8e\u8fed\u4ee3\u76ee\u5f55\u4e2d\u7684\u6761\u76ee\uff0c<code>is_file()<\/code>\u7528\u4e8e\u5224\u65ad\u6761\u76ee\u662f\u5426\u4e3a\u6587\u4ef6\u3002<\/p>\n<\/p>\n<p><p>\u56db\u3001\u7efc\u5408\u6bd4\u8f83<\/p>\n<\/p>\n<p><p>\u7efc\u5408\u4e0a\u8ff0\u65b9\u6cd5\uff0cos\u6a21\u5757\u3001glob\u6a21\u5757\u548cpathlib\u6a21\u5757\u5404\u6709\u4f18\u7f3a\u70b9\uff1a<\/p>\n<\/p>\n<ul>\n<li><strong>os\u6a21\u5757<\/strong>\uff1a\u529f\u80fd\u5f3a\u5927\uff0c\u9002\u7528\u4e8e\u9700\u8981\u8bbf\u95ee\u5927\u91cf\u64cd\u4f5c\u7cfb\u7edf\u529f\u80fd\u7684\u573a\u666f\uff0c\u4f46API\u76f8\u5bf9\u8f83\u5e95\u5c42\u3002<\/li>\n<li><strong>glob\u6a21\u5757<\/strong>\uff1a\u9002\u7528\u4e8e\u67e5\u627e\u7b26\u5408\u7279\u5b9a\u6a21\u5f0f\u7684\u6587\u4ef6\u8def\u5f84\uff0c\u8bed\u6cd5\u7b80\u5355\u76f4\u89c2\u3002<\/li>\n<li><strong>pathlib\u6a21\u5757<\/strong>\uff1a\u9762\u5411\u5bf9\u8c61\u7684API\u8bbe\u8ba1\u4f7f\u4ee3\u7801\u66f4\u5177\u53ef\u8bfb\u6027\uff0c\u9002\u5408\u9700\u8981\u9891\u7e41\u64cd\u4f5c\u8def\u5f84\u7684\u573a\u666f\u3002<\/li>\n<\/ul>\n<p><p>\u5728\u9009\u62e9\u5177\u4f53\u65b9\u6cd5\u65f6\uff0c\u5e94\u6839\u636e\u5177\u4f53\u9700\u6c42\u548c\u5e94\u7528\u573a\u666f\u505a\u51fa\u5224\u65ad\u3002\u5982\u679c\u9700\u8981\u5904\u7406\u590d\u6742\u7684\u6587\u4ef6\u548c\u76ee\u5f55\u64cd\u4f5c\uff0c\u5efa\u8bae\u7ed3\u5408\u4f7f\u7528\u591a\u4e2a\u6a21\u5757\uff0c\u4ee5\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u6587\u4ef6\u7cfb\u7edf\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u83b7\u53d6\u7279\u5b9a\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\u6570\u91cf\uff1f<\/strong><br \/>\u8981\u83b7\u53d6\u67d0\u4e2a\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\u6570\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528<code>os<\/code>\u6a21\u5757\u4e2d\u7684<code>listdir<\/code>\u65b9\u6cd5\u3002\u8be5\u65b9\u6cd5\u4f1a\u5217\u51fa\u6307\u5b9a\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u6587\u4ef6\u548c\u6587\u4ef6\u5939\u3002\u7ed3\u5408<code>len()<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u8f7b\u677e\u8ba1\u7b97\u6587\u4ef6\u7684\u6570\u91cf\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">import os\n\ndirectory = &#39;\/path\/to\/directory&#39;\nfiles = os.listdir(directory)\nfile_count = len([f for f in files if os.path.isfile(os.path.join(directory, f))])\nprint(f&#39;\u6587\u4ef6\u6570\u91cf: {file_count}&#39;)\n<\/code><\/pre>\n<p><strong>Python\u4e2d\u6709\u54ea\u4e9b\u5e93\u53ef\u4ee5\u5e2e\u52a9\u7edf\u8ba1\u6587\u4ef6\u6570\u91cf\uff1f<\/strong><br \/>\u9664\u4e86<code>os<\/code>\u6a21\u5757\uff0c<code>glob<\/code>\u548c<code>pathlib<\/code>\u5e93\u4e5f\u53ef\u4ee5\u5e2e\u52a9\u8fdb\u884c\u6587\u4ef6\u6570\u91cf\u7684\u7edf\u8ba1\u3002<code>glob<\/code>\u6a21\u5757\u5141\u8bb8\u4f7f\u7528\u901a\u914d\u7b26\u6a21\u5f0f\u5339\u914d\u6587\u4ef6\uff0c\u800c<code>pathlib<\/code>\u63d0\u4f9b\u4e86\u66f4\u73b0\u4ee3\u5316\u7684\u65b9\u5f0f\u6765\u5904\u7406\u6587\u4ef6\u8def\u5f84\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528<code>pathlib<\/code>\u7684\u793a\u4f8b\uff1a  <\/p>\n<pre><code class=\"language-python\">from pathlib import Path\n\ndirectory = Path(&#39;\/path\/to\/directory&#39;)\nfile_count = len(list(directory.glob(&#39;*&#39;)))\nprint(f&#39;\u6587\u4ef6\u6570\u91cf: {file_count}&#39;)\n<\/code><\/pre>\n<p><strong>\u5982\u4f55\u5728Python\u4e2d\u9012\u5f52\u7edf\u8ba1\u6587\u4ef6\u6570\u91cf\uff1f<\/strong><br \/>\u5982\u679c\u9700\u8981\u7edf\u8ba1\u4e00\u4e2a\u76ee\u5f55\u53ca\u5176\u6240\u6709\u5b50\u76ee\u5f55\u4e2d\u7684\u6587\u4ef6\u6570\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528<code>os.walk<\/code>\u65b9\u6cd5\u3002\u8fd9\u4e2a\u65b9\u6cd5\u4f1a\u904d\u5386\u76ee\u5f55\u6811\uff0c\u8fd4\u56de\u6bcf\u4e2a\u76ee\u5f55\u4e2d\u7684\u6587\u4ef6\u3002\u4ee3\u7801\u793a\u4f8b\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">import os\n\ndirectory = &#39;\/path\/to\/directory&#39;\nfile_count = sum(len(files) for _, _, files in os.walk(directory))\nprint(f&#39;\u603b\u6587\u4ef6\u6570\u91cf: {file_count}&#39;)\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u67e5\u770b\u6587\u4ef6\u6570\u6709\u591a\u79cd\u65b9\u6cd5\uff0c\u5305\u62ec\u4f7f\u7528os\u6a21\u5757\u3001glob\u6a21\u5757\u3001pathlib\u6a21\u5757\u7b49\u3002os\u6a21\u5757\u63d0\u4f9b\u4e86\u8bbf\u95ee [&hellip;]","protected":false},"author":3,"featured_media":958084,"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\/958081"}],"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=958081"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/958081\/revisions"}],"predecessor-version":[{"id":958088,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/958081\/revisions\/958088"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/958084"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=958081"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=958081"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=958081"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}