{"id":1092426,"date":"2025-01-08T14:21:02","date_gmt":"2025-01-08T06:21:02","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1092426.html"},"modified":"2025-01-08T14:21:05","modified_gmt":"2025-01-08T06:21:05","slug":"python%e5%a6%82%e4%bd%95%e5%88%a0%e9%99%a4%e5%ad%97%e7%ac%a6%e4%b8%b2%e4%b8%ad%e6%95%b0%e5%ad%97-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1092426.html","title":{"rendered":"python\u5982\u4f55\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u6570\u5b57"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24205453\/de2803af-e071-468e-b2ff-890e66613b38.webp\" alt=\"python\u5982\u4f55\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u6570\u5b57\" \/><\/p>\n<p><p> <strong>Python \u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6570\u5b57\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\uff0c\u5305\u62ec\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u5b57\u7b26\u4e32\u65b9\u6cd5\u3001\u5217\u8868\u89e3\u6790\u7b49\u3002<\/strong>\u5176\u4e2d\uff0c\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u4e4b\u4e00\u662f\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\uff08Regular Expression\uff09\u6765\u5339\u914d\u5e76\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6570\u5b57\u3002\u6b63\u5219\u8868\u8fbe\u5f0f\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u6d01\u4e14\u5f3a\u5927\u7684\u65b9\u5f0f\u6765\u5904\u7406\u5b57\u7b26\u4e32\u6a21\u5f0f\u5339\u914d\u548c\u66ff\u6362\u3002\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u8bb2\u89e3\u5982\u4f55\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u4ee5\u53ca\u5176\u4ed6\u65b9\u6cd5\u6765\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6570\u5b57\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6570\u5b57<\/h3>\n<\/p>\n<p><p>\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u4e8e\u5339\u914d\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u5b9a\u6a21\u5f0f\u3002\u5728 Python \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>re<\/code> \u6a21\u5757\u6765\u64cd\u4f5c\u6b63\u5219\u8868\u8fbe\u5f0f\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u6240\u6709\u6570\u5b57\u7684\u6b65\u9aa4\uff1a<\/p>\n<\/p>\n<ol>\n<li>\u5bfc\u5165 <code>re<\/code> \u6a21\u5757\u3002<\/li>\n<li>\u4f7f\u7528 <code>re.sub()<\/code> \u51fd\u6570\u6765\u66ff\u6362\u6240\u6709\u6570\u5b57\u3002<\/li>\n<\/ol>\n<p><p>\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import re<\/p>\n<p>def remove_digits(input_string):<\/p>\n<p>    # \u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u5e76\u5220\u9664\u6240\u6709\u6570\u5b57<\/p>\n<p>    return re.sub(r&#39;\\d+&#39;, &#39;&#39;, input_string)<\/p>\n<p>input_string = &quot;Python3.8 is fun123&quot;<\/p>\n<p>output_string = remove_digits(input_string)<\/p>\n<p>print(output_string)  # \u8f93\u51fa: &quot;Python. is fun&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>re.sub(r&#39;\\d+&#39;, &#39;&#39;, input_string)<\/code> \u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f <code>\\d+<\/code> \u5339\u914d\u5b57\u7b26\u4e32\u4e2d\u7684\u6240\u6709\u6570\u5b57\uff0c\u5e76\u5c06\u5b83\u4eec\u66ff\u6362\u4e3a\u7a7a\u5b57\u7b26\u4e32\uff0c\u4ece\u800c\u8fbe\u5230\u5220\u9664\u6570\u5b57\u7684\u76ee\u7684\u3002<\/p>\n<\/p>\n<p><h3>\u4e8c\u3001\u4f7f\u7528\u5b57\u7b26\u4e32\u65b9\u6cd5\u5220\u9664\u6570\u5b57<\/h3>\n<\/p>\n<p><p>Python \u63d0\u4f9b\u4e86\u591a\u79cd\u5b57\u7b26\u4e32\u65b9\u6cd5\uff0c\u53ef\u4ee5\u7528\u6765\u5904\u7406\u548c\u64cd\u4f5c\u5b57\u7b26\u4e32\u3002\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528\u5b57\u7b26\u4e32\u65b9\u6cd5\u6765\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6570\u5b57\uff1a<\/p>\n<\/p>\n<ol>\n<li>\u4f7f\u7528\u5b57\u7b26\u4e32\u7684 <code>str.isdigit()<\/code> \u65b9\u6cd5\u3002<\/li>\n<li>\u904d\u5386\u5b57\u7b26\u4e32\uff0c\u5e76\u5c06\u975e\u6570\u5b57\u5b57\u7b26\u62fc\u63a5\u8d77\u6765\u3002<\/li>\n<\/ol>\n<p><p>\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def remove_digits(input_string):<\/p>\n<p>    # \u904d\u5386\u5b57\u7b26\u4e32\uff0c\u5e76\u5c06\u975e\u6570\u5b57\u5b57\u7b26\u62fc\u63a5\u8d77\u6765<\/p>\n<p>    return &#39;&#39;.join([char for char in input_string if not char.isdigit()])<\/p>\n<p>input_string = &quot;Python3.8 is fun123&quot;<\/p>\n<p>output_string = remove_digits(input_string)<\/p>\n<p>print(output_string)  # \u8f93\u51fa: &quot;Python. is fun&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u5217\u8868\u89e3\u6790\u6765\u904d\u5386\u5b57\u7b26\u4e32\u4e2d\u7684\u6bcf\u4e2a\u5b57\u7b26\uff0c\u5e76\u4e14\u53ea\u4fdd\u7559\u975e\u6570\u5b57\u5b57\u7b26\u3002<code>char.isdigit()<\/code> \u65b9\u6cd5\u8fd4\u56de <code>True<\/code> \u8868\u793a\u5b57\u7b26\u662f\u6570\u5b57\uff0c<code>False<\/code> \u8868\u793a\u5b57\u7b26\u4e0d\u662f\u6570\u5b57\u3002<\/p>\n<\/p>\n<p><h3>\u4e09\u3001\u4f7f\u7528\u8fc7\u6ee4\u5668\u5220\u9664\u6570\u5b57<\/h3>\n<\/p>\n<p><p>Python \u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5185\u7f6e\u51fd\u6570 <code>filter()<\/code>\uff0c\u53ef\u4ee5\u7528\u4e8e\u8fc7\u6ee4\u53ef\u8fed\u4ee3\u5bf9\u8c61\u4e2d\u7684\u5143\u7d20\u3002\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 <code>filter()<\/code> \u51fd\u6570\u6765\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6570\u5b57\uff1a<\/p>\n<\/p>\n<p><p>\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def remove_digits(input_string):<\/p>\n<p>    # \u4f7f\u7528 filter() \u51fd\u6570\u8fc7\u6ee4\u6389\u6240\u6709\u6570\u5b57\u5b57\u7b26<\/p>\n<p>    return &#39;&#39;.join(filter(lambda char: not char.isdigit(), input_string))<\/p>\n<p>input_string = &quot;Python3.8 is fun123&quot;<\/p>\n<p>output_string = remove_digits(input_string)<\/p>\n<p>print(output_string)  # \u8f93\u51fa: &quot;Python. is fun&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>filter()<\/code> \u51fd\u6570\u901a\u8fc7\u4e00\u4e2a\u533f\u540d\u51fd\u6570\uff08lambda\uff09\u6765\u8fc7\u6ee4\u6389\u6240\u6709\u6570\u5b57\u5b57\u7b26\uff0c\u7136\u540e\u5c06\u5269\u4f59\u7684\u5b57\u7b26\u62fc\u63a5\u6210\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u4f7f\u7528\u5b57\u7b26\u4e32\u7ffb\u8bd1\u8868\u5220\u9664\u6570\u5b57<\/h3>\n<\/p>\n<p><p>Python \u7684 <code>str.translate()<\/code> \u65b9\u6cd5\u53ef\u4ee5\u7ed3\u5408\u7ffb\u8bd1\u8868\u6765\u66ff\u6362\u6216\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u5b57\u7b26\u3002\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 <code>str.translate()<\/code> \u65b9\u6cd5\u6765\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6570\u5b57\uff1a<\/p>\n<\/p>\n<p><p>\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def remove_digits(input_string):<\/p>\n<p>    # \u521b\u5efa\u4e00\u4e2a\u7ffb\u8bd1\u8868\uff0c\u5c06\u6240\u6709\u6570\u5b57\u6620\u5c04\u4e3a\u7a7a\u5b57\u7b26\u4e32<\/p>\n<p>    translation_table = str.maketrans(&#39;&#39;, &#39;&#39;, &#39;0123456789&#39;)<\/p>\n<p>    return input_string.translate(translation_table)<\/p>\n<p>input_string = &quot;Python3.8 is fun123&quot;<\/p>\n<p>output_string = remove_digits(input_string)<\/p>\n<p>print(output_string)  # \u8f93\u51fa: &quot;Python. is fun&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>str.maketrans(&#39;&#39;, &#39;&#39;, &#39;0123456789&#39;)<\/code> \u521b\u5efa\u4e86\u4e00\u4e2a\u7ffb\u8bd1\u8868\uff0c\u5c06\u6240\u6709\u6570\u5b57\u5b57\u7b26\u6620\u5c04\u4e3a\u7a7a\u5b57\u7b26\u4e32\uff0c\u7136\u540e <code>input_string.translate(translation_table)<\/code> \u4f7f\u7528\u8fd9\u4e2a\u7ffb\u8bd1\u8868\u6765\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6570\u5b57\u3002<\/p>\n<\/p>\n<p><h3>\u4e94\u3001\u603b\u7ed3<\/h3>\n<\/p>\n<p><p>\u901a\u8fc7\u4ee5\u4e0a\u51e0\u79cd\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u65b9\u4fbf\u5730\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6570\u5b57\u3002<strong>\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u6700\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u7b80\u6d01\u4e14\u529f\u80fd\u5f3a\u5927\uff1b\u4f7f\u7528\u5b57\u7b26\u4e32\u65b9\u6cd5\u548c\u5217\u8868\u89e3\u6790\u4e5f\u5f88\u76f4\u89c2\uff0c\u9002\u5408\u521d\u5b66\u8005\uff1b\u4f7f\u7528 <code>filter()<\/code> \u51fd\u6570\u548c\u5b57\u7b26\u4e32\u7ffb\u8bd1\u8868\u5219\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u9009\u62e9\u3002<\/strong>\u6839\u636e\u5b9e\u9645\u9700\u6c42\u9009\u62e9\u9002\u5408\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5904\u7406\u548c\u64cd\u4f5c\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u79fb\u9664\u5b57\u7b26\u4e32\u5185\u7684\u6240\u6709\u6570\u5b57\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6240\u6709\u6570\u5b57\u3002\u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a\u5bfc\u5165<code>re<\/code>\u6a21\u5757\uff0c\u4f7f\u7528<code>re.sub()<\/code>\u51fd\u6570\u6765\u66ff\u6362\u6570\u5b57\u4e3a\u4e00\u4e2a\u7a7a\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff1a  <\/p>\n<pre><code class=\"language-python\">import re\ntext = &quot;Hello123 World456&quot;\nresult = re.sub(r&#39;\\d+&#39;, &#39;&#39;, text)\nprint(result)  # \u8f93\u51fa: Hello World\n<\/code><\/pre>\n<p>\u8fd9\u6837\u53ef\u4ee5\u6709\u6548\u5730\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6240\u6709\u6570\u5b57\u3002<\/p>\n<p><strong>\u662f\u5426\u6709\u5176\u4ed6\u65b9\u6cd5\u53ef\u4ee5\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6570\u5b57\uff1f<\/strong><br \/>\u9664\u4e86\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\uff0cPython\u7684\u5b57\u7b26\u4e32\u65b9\u6cd5\u4e5f\u53ef\u4ee5\u8fbe\u5230\u76f8\u540c\u7684\u6548\u679c\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u548c<code>str.join()<\/code>\u65b9\u6cd5\u6765\u8fc7\u6ee4\u6389\u6570\u5b57\u3002\u4f8b\u5982\uff1a  <\/p>\n<pre><code class=\"language-python\">text = &quot;Hello123 World456&quot;\nresult = &#39;&#39;.join(char for char in text if not char.isdigit())\nprint(result)  # \u8f93\u51fa: Hello World\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u540c\u6837\u6709\u6548\uff0c\u5e76\u4e14\u80fd\u591f\u6e05\u6670\u5730\u8868\u8fbe\u610f\u56fe\u3002<\/p>\n<p><strong>\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u6570\u5b57\u540e\u5982\u4f55\u5904\u7406\u5269\u4f59\u5b57\u7b26\uff1f<\/strong><br \/>\u5728\u5220\u9664\u6570\u5b57\u540e\uff0c\u53ef\u80fd\u9700\u8981\u5bf9\u5269\u4f59\u7684\u5b57\u7b26\u8fdb\u884c\u8fdb\u4e00\u6b65\u5904\u7406\u3002\u4f8b\u5982\uff0c\u4f60\u53ef\u80fd\u60f3\u8981\u53bb\u9664\u591a\u4f59\u7684\u7a7a\u683c\u6216\u8fdb\u884c\u5927\u5c0f\u5199\u8f6c\u6362\u3002\u53ef\u4ee5\u4f7f\u7528<code>str.strip()<\/code>\u65b9\u6cd5\u53bb\u9664\u9996\u5c3e\u7a7a\u683c\uff0c\u6216\u4f7f\u7528<code>str.lower()<\/code>\u548c<code>str.upper()<\/code>\u6765\u8f6c\u6362\u5927\u5c0f\u5199\u3002\u4f8b\u5982\uff1a  <\/p>\n<pre><code class=\"language-python\">text = &quot; Hello123 World456 &quot;\nresult = &#39;&#39;.join(char for char in text if not char.isdigit()).strip()\nprint(result.lower())  # \u8f93\u51fa: hello world\n<\/code><\/pre>\n<p>\u8fd9\u6837\u53ef\u4ee5\u786e\u4fdd\u4f60\u5f97\u5230\u7684\u5b57\u7b26\u4e32\u7b26\u5408\u4f60\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python \u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6570\u5b57\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\uff0c\u5305\u62ec\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u5b57\u7b26\u4e32\u65b9\u6cd5\u3001\u5217\u8868\u89e3\u6790\u7b49\u3002\u5176\u4e2d\uff0c\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u4e4b [&hellip;]","protected":false},"author":3,"featured_media":1092440,"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\/1092426"}],"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=1092426"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1092426\/revisions"}],"predecessor-version":[{"id":1092442,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1092426\/revisions\/1092442"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1092440"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1092426"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1092426"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1092426"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}