{"id":961552,"date":"2024-12-27T03:59:46","date_gmt":"2024-12-26T19:59:46","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/961552.html"},"modified":"2024-12-27T03:59:47","modified_gmt":"2024-12-26T19:59:47","slug":"python%e5%a6%82%e4%bd%95%e6%9b%bf%e6%8d%a2%e4%b8%ba%e7%a9%ba%e7%99%bd","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/961552.html","title":{"rendered":"python\u5982\u4f55\u66ff\u6362\u4e3a\u7a7a\u767d"},"content":{"rendered":"

\"python\u5982\u4f55\u66ff\u6362\u4e3a\u7a7a\u767d\"<\/p>\n

\u5728Python\u4e2d\u66ff\u6362\u4e3a\u7a7a\u767d\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5b57\u7b26\u4e32\u7684replace()\u65b9\u6cd5\u3001\u6b63\u5219\u8868\u8fbe\u5f0fre\u6a21\u5757\u6216\u4f7f\u7528\u5b57\u7b26\u4e32\u7684translate()\u65b9\u6cd5\u7b49\u3002replace()\u65b9\u6cd5\u662f\u6700\u5e38\u7528\u7684\uff0c\u56e0\u4e3a\u5b83\u7b80\u5355\u76f4\u89c2\u3002\u6b63\u5219\u8868\u8fbe\u5f0f\u53ef\u4ee5\u7528\u6765\u5904\u7406\u66f4\u590d\u6742\u7684\u66ff\u6362\u60c5\u51b5\uff0c\u6bd4\u5982\u6279\u91cf\u66ff\u6362\u591a\u79cd\u5b57\u7b26\u3002<\/strong><\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528replace()\u65b9\u6cd5<\/p>\n<\/p>\n

replace()<\/code>\u65b9\u6cd5\u662fPython\u5b57\u7b26\u4e32\u7684\u5185\u7f6e\u65b9\u6cd5\uff0c\u7528\u4e8e\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u6307\u5b9a\u5b50\u5b57\u7b26\u4e32\u3002\u5b83\u7684\u57fa\u672c\u8bed\u6cd5\u662fstring.replace(old, new, count)<\/code>\uff0c\u5176\u4e2dold<\/code>\u662f\u8981\u66ff\u6362\u7684\u5b50\u5b57\u7b26\u4e32\uff0cnew<\/code>\u662f\u66ff\u6362\u540e\u7684\u5b57\u7b26\u4e32\uff0ccount<\/code>\u662f\u53ef\u9009\u53c2\u6570\uff0c\u8868\u793a\u66ff\u6362\u7684\u6b21\u6570\u3002<\/p>\n<\/p>\n

\u4f8b\u5982\uff0c\u8981\u5c06\u5b57\u7b26\u4e32\u4e2d\u7684\u67d0\u4e2a\u5b57\u7b26\u66ff\u6362\u4e3a\u7a7a\u767d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n

text = "Hello, World!"<\/p>\n
new_text = text.replace(",", "")<\/p>\n
print(new_text)  # \u8f93\u51fa: Hello World!<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u7b80\u5355\u6613\u7528\uff0c\u5e76\u4e14\u9002\u5408\u5904\u7406\u57fa\u672c\u7684\u66ff\u6362\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528re\u6a21\u5757<\/p>\n<\/p>\n
Python\u7684re<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u652f\u6301\uff0c\u53ef\u4ee5\u7528\u4e8e\u6267\u884c\u590d\u6742\u7684\u66ff\u6362\u64cd\u4f5c\u3002\u4f7f\u7528re.sub()<\/code>\u51fd\u6570\u53ef\u4ee5\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u5339\u914d\u6a21\u5f0f\u3002<\/p>\n<\/p>\n
import re<\/p>\n
text = "Hello, World!"<\/p>\n
new_text = re.sub(r'[^\\w\\s]', '', text)<\/p>\n
print(new_text)  # \u8f93\u51fa: Hello World<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u6b63\u5219\u8868\u8fbe\u5f0f[^\\w\\s]<\/code>\u7528\u4e8e\u5339\u914d\u6240\u6709\u975e\u5b57\u6bcd\u548c\u975e\u7a7a\u767d\u5b57\u7b26\uff0c\u5e76\u5c06\u5176\u66ff\u6362\u4e3a\u7a7a\u767d\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528translate()\u65b9\u6cd5<\/p>\n<\/p>\n
translate()<\/code>\u65b9\u6cd5\u7ed3\u5408str.maketrans()<\/code>\u53ef\u4ee5\u7528\u4e8e\u6279\u91cf\u66ff\u6362\u591a\u4e2a\u5b57\u7b26\u3002\u8fd9\u79cd\u65b9\u6cd5\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u7ffb\u8bd1\u8868\uff0c\u7528\u4e8e\u6307\u5b9a\u5b57\u7b26\u7684\u66ff\u6362\u5173\u7cfb\u3002<\/p>\n<\/p>\n
text = "Hello, World!"<\/p>\n
trans_table = str.maketrans(",!", "  ")<\/p>\n
new_text = text.translate(trans_table)<\/p>\n
print(new_text)  # \u8f93\u51fa: Hello  World <\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u9700\u8981\u66ff\u6362\u591a\u4e2a\u5b57\u7b26\u4e3a\u76f8\u540c\u7684\u76ee\u6807\u5b57\u7b26\uff08\u5982\u7a7a\u767d\uff09\u7684\u60c5\u51b5\u3002<\/p>\n<\/p>\n
\u56db\u3001\u5e94\u7528\u573a\u666f\u4e0e\u6ce8\u610f\u4e8b\u9879<\/p>\n<\/p>\n
1\u3001\u6570\u636e\u6e05\u6d17<\/p>\n<\/p>\n
\u5728\u6570\u636e\u5904\u7406\u548c\u6e05\u6d17\u8fc7\u7a0b\u4e2d\uff0c\u7ecf\u5e38\u9700\u8981\u5c06\u6570\u636e\u4e2d\u7684\u7279\u5b9a\u5b57\u7b26\u66ff\u6362\u4e3a\u7a7a\u767d\uff0c\u4f8b\u5982\u6e05\u9664\u6807\u70b9\u7b26\u53f7\u3001\u7279\u6b8a\u5b57\u7b26\u7b49\u3002\u4f7f\u7528replace()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u5feb\u901f\u5904\u7406\u7b80\u5355\u7684\u66ff\u6362\uff0c\u800c\u5bf9\u4e8e\u590d\u6742\u7684\u6a21\u5f0f\u5339\u914d\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528re<\/code>\u6a21\u5757\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u3002<\/p>\n<\/p>\n
2\u3001\u6587\u672c\u683c\u5f0f\u5316<\/p>\n<\/p>\n
\u5728\u6587\u672c\u5904\u7406\u4efb\u52a1\u4e2d\uff0c\u6709\u65f6\u9700\u8981\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff0c\u4f7f\u5176\u7b26\u5408\u7279\u5b9a\u7684\u683c\u5f0f\u8981\u6c42\u3002\u66ff\u6362\u64cd\u4f5c\u53ef\u4ee5\u5e2e\u52a9\u5220\u9664\u4e0d\u5fc5\u8981\u7684\u5b57\u7b26\uff0c\u4f7f\u6587\u672c\u66f4\u6613\u4e8e\u9605\u8bfb\u548c\u5904\u7406\u3002<\/p>\n<\/p>\n
3\u3001\u6027\u80fd\u8003\u8651<\/p>\n<\/p>\n
\u5bf9\u4e8e\u5927\u89c4\u6a21\u6570\u636e\u5904\u7406\uff0creplace()<\/code>\u65b9\u6cd5\u548cre<\/code>\u6a21\u5757\u7684\u6027\u80fd\u5dee\u5f02\u53ef\u80fd\u4f1a\u663e\u73b0\u3002\u5728\u7b80\u5355\u66ff\u6362\u4efb\u52a1\u4e2d\uff0creplace()<\/code>\u901a\u5e38\u5177\u6709\u66f4\u597d\u7684\u6027\u80fd\u3002\u7136\u800c\uff0cre<\/code>\u6a21\u5757\u7684\u7075\u6d3b\u6027\u4f7f\u5176\u5728\u590d\u6742\u66ff\u6362\u4efb\u52a1\u4e2d\u66f4\u5177\u4f18\u52bf\u3002<\/p>\n<\/p>\n
4\u3001\u786e\u4fdd\u8f93\u5165\u6709\u6548<\/p>\n<\/p>\n
\u5728\u6267\u884c\u66ff\u6362\u64cd\u4f5c\u65f6\uff0c\u786e\u4fdd\u8f93\u5165\u5b57\u7b26\u4e32\u662f\u6709\u6548\u7684\uff0c\u5e76\u4e0d\u5b58\u5728\u53ef\u80fd\u5f15\u8d77\u9519\u8bef\u7684\u7a7a\u503c\u6216\u975e\u5b57\u7b26\u4e32\u7c7b\u578b\u3002\u63d0\u524d\u8fdb\u884c\u7c7b\u578b\u68c0\u67e5\u548c\u5f02\u5e38\u5904\u7406\u53ef\u4ee5\u907f\u514d\u7a0b\u5e8f\u5d29\u6e83\u3002<\/p>\n<\/p>\n
\u603b\u7ed3\u6765\u8bf4\uff0cPython\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u5b57\u7b26\u4e3a\u7a7a\u767d\u3002\u6839\u636e\u4e0d\u540c\u7684\u9700\u6c42\uff0c\u53ef\u4ee5\u9009\u62e9\u4f7f\u7528replace()<\/code>\u65b9\u6cd5\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u6216translate()<\/code>\u65b9\u6cd5\u3002\u4e86\u89e3\u6bcf\u79cd\u65b9\u6cd5\u7684\u4f18\u7f3a\u70b9\u4ee5\u53ca\u9002\u7528\u573a\u666f\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u66f4\u6709\u6548\u5730\u5904\u7406\u6587\u672c\u6570\u636e\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u5c06\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u5b9a\u5b57\u7b26\u66ff\u6362\u4e3a\u7a7a\u767d\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528str.replace()<\/code>\u65b9\u6cd5\u6765\u5c06\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u5b9a\u5b57\u7b26\u66ff\u6362\u4e3a\u7a7a\u767d\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u60f3\u5c06\u5b57\u7b26\u4e32\u4e2d\u7684\u6240\u6709\u9017\u53f7\u66ff\u6362\u4e3a\u7a7a\u767d\uff0c\u53ef\u4ee5\u8fd9\u6837\u505a\uff1a  <\/p>\n
original_string = "Hello, world! Welcome, to Python."\nmodified_string = original_string.replace(",", " ")\nprint(modified_string)\n<\/code><\/pre>\n
\u8f93\u51fa\u7ed3\u679c\u5c06\u662f\uff1a"Hello  world! Welcome  to Python."\uff0c\u5176\u4e2d\u6240\u6709\u7684\u9017\u53f7\u90fd\u88ab\u66ff\u6362\u4e3a\u7a7a\u683c\u3002<\/p>\n
\u5982\u4f55\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5728Python\u4e2d\u66ff\u6362\u5b57\u7b26\u4e3a\u7a7a\u767d\uff1f<\/strong>
\u5728\u4e00\u4e9b\u590d\u6742\u7684\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u66ff\u6362\u5b57\u7b26\u3002\u53ef\u4ee5\u4f7f\u7528re<\/code>\u6a21\u5757\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u5c06\u5b57\u7b26\u4e32\u4e2d\u7684\u6240\u6709\u6570\u5b57\u66ff\u6362\u4e3a\u7a7a\u767d\uff1a  <\/p>\n
import re\noriginal_string = "There are 2 apples and 3 oranges."\nmodified_string = re.sub(r'\\d+', ' ', original_string)\nprint(modified_string)\n<\/code><\/pre>\n
\u6b64\u4ee3\u7801\u5c06\u8f93\u51fa\uff1a"There are   apples and   oranges."\uff0c\u6240\u6709\u6570\u5b57\u90fd\u88ab\u7a7a\u683c\u66ff\u6362\u3002<\/p>\n
\u5728Python\u4e2d\u5982\u4f55\u6279\u91cf\u66ff\u6362\u591a\u4e2a\u5b57\u7b26\u4e3a\u7a7a\u767d\uff1f<\/strong>
\u5982\u679c\u9700\u8981\u540c\u65f6\u66ff\u6362\u591a\u4e2a\u5b57\u7b26\uff0c\u53ef\u4ee5\u4f7f\u7528str.translate()<\/code>\u65b9\u6cd5\u4e0estr.maketrans()<\/code>\u7ed3\u5408\u4f7f\u7528\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60f3\u5c06\u5b57\u7b26\u4e32\u4e2d\u7684\u9017\u53f7\u548c\u53e5\u53f7\u66ff\u6362\u4e3a\u7a7a\u767d\uff0c\u53ef\u4ee5\u8fd9\u6837\u505a\uff1a  <\/p>\n
original_string = "Hello, world. Welcome to Python."\ntranslation_table = str.maketrans(",.", "  ")\nmodified_string = original_string.translate(translation_table)\nprint(modified_string)\n<\/code><\/pre>\n
\u8f93\u51fa\u5c06\u662f\uff1a"Hello  world  Welcome to Python"\uff0c\u9017\u53f7\u548c\u53e5\u53f7\u90fd\u88ab\u66ff\u6362\u4e3a\u7a7a\u767d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u66ff\u6362\u4e3a\u7a7a\u767d\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5b57\u7b26\u4e32\u7684replace()\u65b9\u6cd5\u3001\u6b63\u5219\u8868\u8fbe\u5f0fre\u6a21\u5757\u6216\u4f7f\u7528\u5b57\u7b26\u4e32\u7684tran […]","protected":false},"author":3,"featured_media":961557,"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\/961552"}],"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=961552"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/961552\/revisions"}],"predecessor-version":[{"id":961560,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/961552\/revisions\/961560"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/961557"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=961552"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=961552"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=961552"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}