{"id":1131817,"date":"2025-01-08T20:51:47","date_gmt":"2025-01-08T12:51:47","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1131817.html"},"modified":"2025-01-08T20:51:49","modified_gmt":"2025-01-08T12:51:49","slug":"%e5%a6%82%e4%bd%95%e6%9b%bf%e6%8d%a2python%e4%b8%ad%e5%ad%97%e7%ac%a6%e4%b8%b2%e7%9a%84%e6%9f%90%e9%83%a8%e5%88%86","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1131817.html","title":{"rendered":"\u5982\u4f55\u66ff\u6362python\u4e2d\u5b57\u7b26\u4e32\u7684\u67d0\u90e8\u5206"},"content":{"rendered":"

\"\u5982\u4f55\u66ff\u6362python\u4e2d\u5b57\u7b26\u4e32\u7684\u67d0\u90e8\u5206\"<\/p>\n

\u5728Python\u4e2d\uff0c\u66ff\u6362\u5b57\u7b26\u4e32\u7684\u67d0\u90e8\u5206\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5b57\u7b26\u4e32\u7684\u5185\u7f6e\u65b9\u6cd5\u5982replace()\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u5207\u7247\u64cd\u4f5c\u7b49\u3002<\/strong>\u5176\u4e2d\uff0creplace()<\/strong> \u65b9\u6cd5\u662f\u6700\u5e38\u7528\u4e14\u7b80\u4fbf\u7684\u65b9\u5f0f\u3002\u4e0b\u9762\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\u66ff\u6362\u5b57\u7b26\u4e32\u7684\u67d0\u90e8\u5206\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528replace()\u65b9\u6cd5<\/h3>\n<\/p>\n

Python \u63d0\u4f9b\u4e86\u4e00\u4e2a\u5185\u7f6e\u7684\u5b57\u7b26\u4e32\u65b9\u6cd5 replace()<\/code>\uff0c\u7528\u6765\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u67d0\u4e9b\u90e8\u5206\u3002replace()<\/code> \u65b9\u6cd5\u63a5\u6536\u4e24\u4e2a\u53c2\u6570\uff1a\u8981\u66ff\u6362\u7684\u5b50\u5b57\u7b26\u4e32\u548c\u65b0\u7684\u5b50\u5b57\u7b26\u4e32\u3002\u5b83\u8fd8\u53ef\u4ee5\u63a5\u6536\u4e00\u4e2a\u53ef\u9009\u53c2\u6570\uff0c\u7528\u4e8e\u6307\u5b9a\u66ff\u6362\u7684\u6b21\u6570\u3002<\/p>\n<\/p>\n

original_string = "Hello, world! Hello, everyone!"<\/p>\n
new_string = original_string.replace("Hello", "Hi")<\/p>\n
print(new_string)  # Output: Hi, world! Hi, everyone!<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u4e2a\u65b9\u6cd5\u975e\u5e38\u7b80\u5355\u4e14\u9ad8\u6548\uff0c\u5f53\u4f60\u9700\u8981\u66ff\u6362\u6240\u6709\u51fa\u73b0\u7684\u67d0\u4e2a\u5b50\u5b57\u7b26\u4e32\u65f6\uff0creplace()<\/code> \u65b9\u6cd5\u662f\u4e00\u4e2a\u5f88\u597d\u7684\u9009\u62e9\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f<\/h3>\n<\/p>\n
\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u6765\u641c\u7d22\u3001\u5339\u914d\u548c\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u5b9a\u6a21\u5f0f\u3002Python \u7684 re<\/code> \u6a21\u5757\u63d0\u4f9b\u4e86 sub()<\/code> \u65b9\u6cd5\u7528\u4e8e\u66ff\u6362\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n
import re<\/p>\n
original_string = "The rAI<\/a>n in Spain"<\/p>\n
new_string = re.sub(r"rain", "snow", original_string)<\/p>\n
print(new_string)  # Output: The snow in Spain<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u4e00\u4e2a\u597d\u5904\u662f\u5b83\u53ef\u4ee5\u8fdb\u884c\u590d\u6742\u7684\u6a21\u5f0f\u5339\u914d\u548c\u66ff\u6362\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u7b80\u5355\u7684\u5b50\u5b57\u7b26\u4e32\u66ff\u6362\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528\u5207\u7247\u64cd\u4f5c<\/h3>\n<\/p>\n
\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u66ff\u6362\u5b57\u7b26\u4e32\u7684\u7279\u5b9a\u90e8\u5206\uff0c\u800c\u4e0d\u662f\u6240\u6709\u51fa\u73b0\u7684\u5b50\u5b57\u7b26\u4e32\u3002\u6b64\u65f6\u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u7684\u5207\u7247\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
original_string = "Hello, world!"<\/p>\n
Replace 'world' with 'Python'<\/strong><\/h2>\n
new_string = original_string[:7] + "Python" + original_string[12:]<\/p>\n
print(new_string)  # Output: Hello, Python!<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5b57\u7b26\u4e32\u5207\u7247\u64cd\u4f5c\u975e\u5e38\u7075\u6d3b\uff0c\u9002\u5408\u7528\u6765\u66ff\u6362\u5b57\u7b26\u4e32\u7684\u7279\u5b9a\u90e8\u5206\u3002<\/p>\n<\/p>\n
\u56db\u3001\u5b57\u7b26\u4e32\u63d2\u503c<\/h3>\n<\/p>\n
\u5982\u679c\u4f60\u9700\u8981\u5728\u5b57\u7b26\u4e32\u7684\u67d0\u90e8\u5206\u63d2\u5165\u53d8\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u63d2\u503c\u7684\u65b9\u6cd5\uff0c\u5982 f-strings \u6216 format()<\/code> \u65b9\u6cd5\u3002<\/p>\n<\/p>\n
name = "John"<\/p>\n
age = 30<\/p>\n
new_string = f"My name is {name} and I am {age} years old."<\/p>\n
print(new_string)  # Output: My name is John and I am 30 years old.<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e94\u3001\u4f7f\u7528\u5217\u8868\u548cjoin()\u65b9\u6cd5<\/h3>\n<\/p>\n
\u6709\u65f6\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u590d\u6742\u7684\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5148\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5217\u8868\uff0c\u8fdb\u884c\u4fee\u6539\u540e\u518d\u7528 join()<\/code> \u65b9\u6cd5\u5408\u5e76\u56de\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n
original_string = "Hello, world!"<\/p>\n
string_list = list(original_string)<\/p>\n
string_list[7:12] = "Python"<\/p>\n
new_string = ''.join(string_list)<\/p>\n
print(new_string)  # Output: Hello, Python!<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u9700\u8981\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u590d\u6742\u7684\u4fee\u6539\u65f6\u3002<\/p>\n<\/p>\n
\n
\u8be6\u7ec6\u89e3\u6790replace()\u65b9\u6cd5<\/h3>\n<\/p>\n
replace() \u65b9\u6cd5\u7684\u4f7f\u7528<\/strong>\uff1a<\/p>\n<\/p>\n
replace()<\/code> \u65b9\u6cd5\u662f\u5b57\u7b26\u4e32\u5bf9\u8c61\u7684\u4e00\u4e2a\u65b9\u6cd5\uff0c\u7528\u4e8e\u5c06\u539f\u5b57\u7b26\u4e32\u4e2d\u7684\u67d0\u4e2a\u5b50\u5b57\u7b26\u4e32\u66ff\u6362\u4e3a\u53e6\u4e00\u4e2a\u5b50\u5b57\u7b26\u4e32\u3002\u5b83\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
str.replace(old, new[, count])<\/p>\n
<\/code><\/pre>\n<\/p>\n
    \n
  • old<\/strong>: \u5c06\u88ab\u66ff\u6362\u7684\u5b50\u5b57\u7b26\u4e32\u3002<\/li>\n
  • new<\/strong>: \u66ff\u6362\u540e\u7684\u5b50\u5b57\u7b26\u4e32\u3002<\/li>\n
  • count<\/strong>: \u53ef\u9009\u53c2\u6570\uff0c\u6307\u5b9a\u66ff\u6362\u7684\u6b21\u6570\u3002\u5982\u679c\u4e0d\u6307\u5b9a\uff0c\u9ed8\u8ba4\u66ff\u6362\u6240\u6709\u51fa\u73b0\u7684\u5b50\u5b57\u7b26\u4e32\u3002<\/li>\n<\/ul>\n
    \u793a\u4f8b<\/h4>\n<\/p>\n
    original_string = "Hello, world! Hello, everyone!"<\/p>\n
    new_string = original_string.replace("Hello", "Hi")<\/p>\n
    print(new_string)  # Output: Hi, world! Hi, everyone!<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6240\u6709\u51fa\u73b0\u7684 "Hello" \u90fd\u88ab\u66ff\u6362\u4e3a\u4e86 "Hi"\u3002\u5982\u679c\u6211\u4eec\u53ea\u60f3\u66ff\u6362\u7b2c\u4e00\u4e2a "Hello"\uff0c\u53ef\u4ee5\u4f7f\u7528 count<\/code> \u53c2\u6570\uff1a<\/p>\n<\/p>\n
    new_string = original_string.replace("Hello", "Hi", 1)<\/p>\n
    print(new_string)  # Output: Hi, world! Hello, everyone!<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u8fdb\u884c\u9ad8\u7ea7\u66ff\u6362<\/h3>\n<\/p>\n
    \u6b63\u5219\u8868\u8fbe\u5f0f<\/strong> \u662f\u4e00\u79cd\u6a21\u5f0f\u5339\u914d\u5de5\u5177\uff0c\u7528\u4e8e\u5728\u5b57\u7b26\u4e32\u4e2d\u67e5\u627e\u548c\u66ff\u6362\u590d\u6742\u7684\u6a21\u5f0f\u3002Python \u4e2d\u7684 re<\/code> \u6a21\u5757\u63d0\u4f9b\u4e86 sub()<\/code> \u65b9\u6cd5\u6765\u8fdb\u884c\u66ff\u6362\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b<\/h4>\n<\/p>\n
    import re<\/p>\n
    original_string = "The rain in Spain"<\/p>\n
    new_string = re.sub(r"rain", "snow", original_string)<\/p>\n
    print(new_string)  # Output: The snow in Spain<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0cr"rain"<\/code> \u662f\u4e00\u4e2a\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\uff0c\u7528\u4e8e\u5339\u914d\u5b57\u7b26\u4e32\u4e2d\u7684 "rain"\u3002re.sub()<\/code> \u65b9\u6cd5\u5c06\u6240\u6709\u5339\u914d\u7684 "rain" \u66ff\u6362\u4e3a "snow"\u3002<\/p>\n<\/p>\n
    \u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u8fdb\u884c\u590d\u6742\u66ff\u6362<\/h4>\n<\/p>\n
    \u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u4e00\u4e2a\u5f3a\u5927\u4e4b\u5904\u5728\u4e8e\u5b83\u80fd\u591f\u8fdb\u884c\u590d\u6742\u7684\u6a21\u5f0f\u5339\u914d\u548c\u66ff\u6362\u3002\u4f8b\u5982\uff0c\u66ff\u6362\u6240\u6709\u4ee5\u6570\u5b57\u5f00\u5934\u7684\u5355\u8bcd\uff1a<\/p>\n<\/p>\n
    original_string = "1st place, 2nd place, 3rd place"<\/p>\n
    new_string = re.sub(r"\\b\\d+\\w*\\b", "X", original_string)<\/p>\n
    print(new_string)  # Output: X place, X place, X place<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\\b\\d+\\w*\\b<\/code> \u662f\u4e00\u4e2a\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\uff0c\u7528\u4e8e\u5339\u914d\u6240\u6709\u4ee5\u6570\u5b57\u5f00\u5934\u7684\u5355\u8bcd\u3002<\/p>\n<\/p>\n
    \u4f7f\u7528\u5b57\u7b26\u4e32\u5207\u7247\u8fdb\u884c\u66ff\u6362<\/h3>\n<\/p>\n
    \u5b57\u7b26\u4e32\u5207\u7247\u662f\u4e00\u79cd\u7075\u6d3b\u7684\u65b9\u5f0f\uff0c\u7528\u4e8e\u66ff\u6362\u5b57\u7b26\u4e32\u7684\u7279\u5b9a\u90e8\u5206\u3002\u5207\u7247\u64cd\u4f5c\u5141\u8bb8\u4f60\u6307\u5b9a\u4e00\u4e2a\u8303\u56f4\uff0c\u4ece\u800c\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u67d0\u4e2a\u90e8\u5206\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b<\/h4>\n<\/p>\n
    original_string = "Hello, world!"<\/p>\n
    new_string = original_string[:7] + "Python" + original_string[12:]<\/p>\n
    print(new_string)  # Output: Hello, Python!<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0coriginal_string[:7]<\/code> \u83b7\u53d6\u5b57\u7b26\u4e32\u7684\u524d7\u4e2a\u5b57\u7b26\uff0coriginal_string[12:]<\/code> \u83b7\u53d6\u4ece\u7b2c12\u4e2a\u5b57\u7b26\u5f00\u59cb\u7684\u5269\u4f59\u90e8\u5206\u3002\u7136\u540e\u901a\u8fc7\u5b57\u7b26\u4e32\u62fc\u63a5\uff0c\u5c06 "Python" \u63d2\u5165\u5230\u6307\u5b9a\u4f4d\u7f6e\u3002<\/p>\n<\/p>\n
    \u4f7f\u7528\u5b57\u7b26\u4e32\u63d2\u503c\u8fdb\u884c\u66ff\u6362<\/h3>\n<\/p>\n
    \u5b57\u7b26\u4e32\u63d2\u503c\u662f\u4e00\u79cd\u5c06\u53d8\u91cf\u503c\u63d2\u5165\u5230\u5b57\u7b26\u4e32\u4e2d\u7684\u65b9\u6cd5\u3002Python \u63d0\u4f9b\u4e86\u591a\u79cd\u5b57\u7b26\u4e32\u63d2\u503c\u65b9\u6cd5\uff0c\u5305\u62ec f-strings \u548c format()<\/code> \u65b9\u6cd5\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b<\/h4>\n<\/p>\n
    name = "John"<\/p>\n
    age = 30<\/p>\n
    new_string = f"My name is {name} and I am {age} years old."<\/p>\n
    print(new_string)  # Output: My name is John and I am 30 years old.<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528 f-strings \u53ef\u4ee5\u975e\u5e38\u65b9\u4fbf\u5730\u5c06\u53d8\u91cf\u63d2\u5165\u5230\u5b57\u7b26\u4e32\u4e2d\u3002<\/p>\n<\/p>\n
    \u4f7f\u7528\u5217\u8868\u548cjoin()\u65b9\u6cd5\u8fdb\u884c\u66ff\u6362<\/h3>\n<\/p>\n
    \u6709\u65f6\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u590d\u6742\u7684\u4fee\u6539\uff0c\u53ef\u4ee5\u5148\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5217\u8868\uff0c\u8fdb\u884c\u4fee\u6539\u540e\u518d\u7528 join()<\/code> \u65b9\u6cd5\u5408\u5e76\u56de\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b<\/h4>\n<\/p>\n
    original_string = "Hello, world!"<\/p>\n
    string_list = list(original_string)<\/p>\n
    string_list[7:12] = "Python"<\/p>\n
    new_string = ''.join(string_list)<\/p>\n
    print(new_string)  # Output: Hello, Python!<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u9996\u5148\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5217\u8868\uff0c\u7136\u540e\u5bf9\u5217\u8868\u8fdb\u884c\u4fee\u6539\uff0c\u6700\u540e\u4f7f\u7528 join()<\/code> \u65b9\u6cd5\u5c06\u5217\u8868\u5408\u5e76\u56de\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n
    \u5b9e\u8df5\u4e2d\u7684\u6ce8\u610f\u4e8b\u9879<\/h3>\n<\/p>\n
    \u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u66ff\u6362\u5b57\u7b26\u4e32\u7684\u67d0\u90e8\u5206\u65f6\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n<\/p>\n
      \n
    • \u6548\u7387<\/strong>\uff1a\u5bf9\u4e8e\u5927\u578b\u5b57\u7b26\u4e32\uff0c\u9009\u62e9\u9ad8\u6548\u7684\u65b9\u6cd5\u975e\u5e38\u91cd\u8981\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0creplace()<\/code> \u65b9\u6cd5\u662f\u6700\u5feb\u7684\u3002<\/li>\n
    • \u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u590d\u6742\u6027<\/strong>\uff1a\u867d\u7136\u6b63\u5219\u8868\u8fbe\u5f0f\u975e\u5e38\u5f3a\u5927\uff0c\u4f46\u5b83\u4eec\u7684\u8bed\u6cd5\u6bd4\u8f83\u590d\u6742\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4ee3\u7801\u53ef\u8bfb\u6027\u4e0b\u964d\u3002<\/li>\n
    • \u5207\u7247\u64cd\u4f5c\u7684\u7075\u6d3b\u6027<\/strong>\uff1a\u5207\u7247\u64cd\u4f5c\u975e\u5e38\u7075\u6d3b\uff0c\u4f46\u9700\u8981\u7cbe\u786e\u6307\u5b9a\u7d22\u5f15\u8303\u56f4\uff0c\u5426\u5219\u53ef\u80fd\u5bfc\u81f4\u9519\u8bef\u3002<\/li>\n
    • \u5b57\u7b26\u4e32\u63d2\u503c\u7684\u4fbf\u6377\u6027<\/strong>\uff1a\u5b57\u7b26\u4e32\u63d2\u503c\u975e\u5e38\u65b9\u4fbf\uff0c\u4f46\u4e0d\u9002\u5408\u8fdb\u884c\u5927\u89c4\u6a21\u66ff\u6362\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n
      \u901a\u8fc7\u7406\u89e3\u548c\u638c\u63e1\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u4f60\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u573a\u666f\u4e0b\u9009\u62e9\u6700\u9002\u5408\u7684\u65b9\u6cd5\u6765\u66ff\u6362Python\u5b57\u7b26\u4e32\u7684\u67d0\u90e8\u5206\uff0c\u4ece\u800c\u63d0\u9ad8\u4ee3\u7801\u7684\u6548\u7387\u548c\u53ef\u8bfb\u6027\u3002<\/p>\n<\/p>\n
      \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
       \u5982\u4f55\u5728Python\u4e2d\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u5b9a\u5b57\u7b26\u6216\u5b50\u5b57\u7b26\u4e32\uff1f<\/strong>
      \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528str.replace()<\/code>\u65b9\u6cd5\u6765\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u5b9a\u5b57\u7b26\u6216\u5b50\u5b57\u7b26\u4e32\u3002\u8fd9\u4e2a\u65b9\u6cd5\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff1a\u8981\u66ff\u6362\u7684\u5b50\u5b57\u7b26\u4e32\u548c\u65b0\u7684\u5b50\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff0cmy_string.replace("old", "new")<\/code>\u5c06\u628amy_string<\/code>\u4e2d\u7684\u6240\u6709\u201cold\u201d\u66ff\u6362\u4e3a\u201cnew\u201d\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u6307\u5b9a\u66ff\u6362\u7684\u6b21\u6570\u3002<\/p>\n
      \u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u8fdb\u884c\u66f4\u590d\u6742\u7684\u66ff\u6362\u6709\u4ec0\u4e48\u65b9\u6cd5\uff1f<\/strong>
      \u5f53\u9700\u8981\u8fdb\u884c\u66f4\u590d\u6742\u7684\u5b57\u7b26\u4e32\u66ff\u6362\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528re<\/code>\u6a21\u5757\u4e2d\u7684re.sub()<\/code>\u51fd\u6570\u3002\u8fd9\u4e2a\u51fd\u6570\u5141\u8bb8\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u5339\u914d\u9700\u8981\u66ff\u6362\u7684\u90e8\u5206\uff0c\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u7075\u6d3b\u6027\u3002\u6bd4\u5982\uff0cre.sub(r'\\d+', 'number', my_string)<\/code>\u4f1a\u5c06\u5b57\u7b26\u4e32\u4e2d\u7684\u6240\u6709\u6570\u5b57\u66ff\u6362\u4e3a\u201cnumber\u201d\u3002<\/p>\n
      \u5728\u66ff\u6362\u5b57\u7b26\u4e32\u65f6\uff0c\u5982\u4f55\u5904\u7406\u5927\u5c0f\u5199\u7684\u95ee\u9898\uff1f<\/strong>
      \u5b57\u7b26\u4e32\u66ff\u6362\u9ed8\u8ba4\u662f\u533a\u5206\u5927\u5c0f\u5199\u7684\u3002\u5982\u679c\u5e0c\u671b\u8fdb\u884c\u4e0d\u533a\u5206\u5927\u5c0f\u5199\u7684\u66ff\u6362\uff0c\u53ef\u4ee5\u5728\u4f7f\u7528re.sub()<\/code>\u65f6\u4f7f\u7528flags=re.IGNORECASE<\/code>\u53c2\u6570\u3002\u4f8b\u5982\uff0cre.sub('old', 'new', my_string, flags=re.IGNORECASE)<\/code>\u5c06\u4f1a\u66ff\u6362\u6240\u6709\u201cold\u201d\u548c\u201cOld\u201d\u7b49\u4e0d\u540c\u5927\u5c0f\u5199\u5f62\u5f0f\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u66ff\u6362\u5b57\u7b26\u4e32\u7684\u67d0\u90e8\u5206\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5b57\u7b26\u4e32\u7684\u5185\u7f6e\u65b9\u6cd5\u5982replace()\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u5207\u7247\u64cd\u4f5c\u7b49\u3002 […]","protected":false},"author":3,"featured_media":1131823,"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\/1131817"}],"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=1131817"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1131817\/revisions"}],"predecessor-version":[{"id":1131824,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1131817\/revisions\/1131824"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1131823"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1131817"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1131817"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1131817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}