{"id":1051358,"date":"2024-12-31T14:15:47","date_gmt":"2024-12-31T06:15:47","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1051358.html"},"modified":"2024-12-31T14:15:49","modified_gmt":"2024-12-31T06:15:49","slug":"python%e4%b8%ad%e5%ad%97%e7%ac%a6%e4%b8%b2%e5%a6%82%e4%bd%95%e6%94%b9%e4%bd%8d%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1051358.html","title":{"rendered":"python\u4e2d\u5b57\u7b26\u4e32\u5982\u4f55\u6539\u4f4d\u7f6e"},"content":{"rendered":"

\"python\u4e2d\u5b57\u7b26\u4e32\u5982\u4f55\u6539\u4f4d\u7f6e\"<\/p>\n

\u5728Python\u4e2d\uff0c\u5b57\u7b26\u4e32\u7684\u6539\u4f4d\u7f6e\u64cd\u4f5c\u53ef\u4ee5\u901a\u8fc7\u5207\u7247\u3001\u8fde\u63a5\u3001\u66ff\u6362\u7b49\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002\u5207\u7247\u3001\u62fc\u63a5\u3001\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u5185\u7f6e\u51fd\u6570\u662f\u5e38\u7528\u65b9\u6cd5\u3002<\/strong>\u5176\u4e2d\uff0c\u5207\u7247\u662f\u6700\u5e38\u89c1\u548c\u57fa\u672c\u7684\u65b9\u6cd5\uff0c\u901a\u8fc7\u5207\u5272\u5b57\u7b26\u4e32\u5e76\u91cd\u65b0\u7ec4\u5408\u6765\u5b9e\u73b0\u4f4d\u7f6e\u7684\u53d8\u6362\u3002<\/p>\n<\/p>\n

\u5207\u7247\u4e0e\u62fc\u63a5<\/strong><\/h2>\n

\u5207\u7247\u662f\u6307\u901a\u8fc7\u7d22\u5f15\u8303\u56f4\u63d0\u53d6\u5b57\u7b26\u4e32\u7684\u4e00\u90e8\u5206\uff0c\u7136\u540e\u5c06\u8fd9\u4e9b\u90e8\u5206\u91cd\u65b0\u7ec4\u5408\u4ee5\u5b9e\u73b0\u4f4d\u7f6e\u53d8\u6362\u3002\u5b57\u7b26\u4e32\u5207\u7247\u7684\u8bed\u6cd5\u662fstring[start:end]<\/code>\uff0c\u5b83\u4f1a\u8fd4\u56de\u4ecestart\u5230end-1\u7684\u5b50\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n

\u793a\u4f8b\u4ee3\u7801\uff1a<\/h3>\n<\/p>\n

# \u539f\u59cb\u5b57\u7b26\u4e32<\/p>\n
original_string = "hello world"<\/p>\n
\u5207\u7247\u64cd\u4f5c<\/strong><\/h2>\n
part1 = original_string[:5]  # "hello"<\/p>\n
part2 = original_string[5:]  # " world"<\/p>\n
\u91cd\u65b0\u7ec4\u5408<\/strong><\/h2>\n
new_string = part2 + part1   # " worldhello"<\/p>\n
print(new_string)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u628a\u5b57\u7b26\u4e32\u5207\u5272\u6210\u4e24\u4e2a\u90e8\u5206\uff0c\u7136\u540e\u5c06\u5b83\u4eec\u91cd\u65b0\u7ec4\u5408\u6210\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n
\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f<\/strong><\/h2>\n
\u6b63\u5219\u8868\u8fbe\u5f0f\uff08regex\uff09\u662f\u53e6\u4e00\u79cd\u5904\u7406\u5b57\u7b26\u4e32\u7684\u5f3a\u5927\u5de5\u5177\u3002\u901a\u8fc7\u6b63\u5219\u8868\u8fbe\u5f0f\uff0c\u53ef\u4ee5\u66f4\u590d\u6742\u5730\u5339\u914d\u548c\u64cd\u4f5c\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n
\u793a\u4f8b\u4ee3\u7801\uff1a<\/h3>\n<\/p>\n
import re<\/p>\n
\u539f\u59cb\u5b57\u7b26\u4e32<\/strong><\/h2>\n
original_string = "hello world"<\/p>\n
\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u5e76\u91cd\u65b0\u6392\u5217<\/strong><\/h2>\n
new_string = re.sub(r'(hello) (world)', r'\\2 \\1', original_string)<\/p>\n
print(new_string)  # \u8f93\u51fa "world hello"<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6b63\u5219\u8868\u8fbe\u5f0fr'(hello) (world)'<\/code>\u5339\u914d\u4e86\u6574\u4e2a\u5b57\u7b26\u4e32\uff0c\u5e76\u901a\u8fc7\u66ff\u6362\u5c06\u4e24\u4e2a\u5355\u8bcd\u7684\u4f4d\u7f6e\u8fdb\u884c\u4e86\u8c03\u6362\u3002<\/p>\n<\/p>\n
\u4f7f\u7528\u5185\u7f6e\u51fd\u6570<\/strong><\/h2>\n
Python\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5b57\u7b26\u4e32\u5904\u7406\u7684\u5185\u7f6e\u51fd\u6570\uff0c\u6bd4\u5982replace()<\/code>\uff0c\u53ef\u4ee5\u7528\u6765\u5b9e\u73b0\u7b80\u5355\u7684\u5b57\u7b26\u4e32\u4f4d\u7f6e\u66ff\u6362\u3002<\/p>\n<\/p>\n
\u793a\u4f8b\u4ee3\u7801\uff1a<\/h3>\n<\/p>\n
# \u539f\u59cb\u5b57\u7b26\u4e32<\/p>\n
original_string = "hello world"<\/p>\n
\u66ff\u6362\u64cd\u4f5c<\/strong><\/h2>\n
new_string = original_string.replace("hello", "temp").replace("world", "hello").replace("temp", "world")<\/p>\n
print(new_string)  # \u8f93\u51fa "world hello"<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u91cc\u6211\u4eec\u7528replace()<\/code>\u51fd\u6570\u4e34\u65f6\u4ea4\u6362\u4e86\u4e24\u4e2a\u5b50\u5b57\u7b26\u4e32\u7684\u4f4d\u7f6e\u3002<\/p>\n<\/p>\n
\u4f7f\u7528\u5217\u8868<\/strong><\/h2>\n
\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5217\u8868\uff0c\u53ef\u4ee5\u66f4\u7075\u6d3b\u5730\u64cd\u4f5c\u6bcf\u4e00\u4e2a\u5b57\u7b26\u7684\u4f4d\u7f6e\u3002\u5904\u7406\u5b8c\u540e\u518d\u5c06\u5217\u8868\u8f6c\u6362\u56de\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n
\u793a\u4f8b\u4ee3\u7801\uff1a<\/h3>\n<\/p>\n
# \u539f\u59cb\u5b57\u7b26\u4e32<\/p>\n
original_string = "hello world"<\/p>\n
\u8f6c\u6362\u4e3a\u5217\u8868<\/strong><\/h2>\n
char_list = list(original_string)<\/p>\n
\u4ea4\u6362\u4f4d\u7f6e<\/strong><\/h2>\n
char_list[0], char_list[6] = char_list[6], char_list[0]  # \u4ea4\u6362h\u548cw\u7684\u4f4d\u7f6e<\/p>\n
\u8f6c\u6362\u56de\u5b57\u7b26\u4e32<\/strong><\/h2>\n
new_string = ''.join(char_list)<\/p>\n
print(new_string)  # \u8f93\u51fa "wello horld"<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5217\u8868\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u64cd\u4f5c\u5355\u4e2a\u5b57\u7b26\u7684\u4f4d\u7f6e\u5e76\u91cd\u65b0\u7ec4\u5408\u3002<\/p>\n<\/p>\n
\u4e00\u3001\u5207\u7247\u4e0e\u62fc\u63a5<\/strong><\/h2>\n
1. \u5207\u7247\u7684\u57fa\u672c\u7528\u6cd5<\/h2>\n<\/p>\n
\u5207\u7247\u662fPython\u4e2d\u4e00\u4e2a\u975e\u5e38\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u901a\u8fc7\u7d22\u5f15\u8303\u56f4\u6765\u63d0\u53d6\u5b57\u7b26\u4e32\u7684\u4e00\u90e8\u5206\u3002\u5207\u7247\u7684\u57fa\u672c\u8bed\u6cd5\u662fstring[start:end]<\/code>\uff0c\u5176\u4e2dstart\u662f\u8d77\u59cb\u7d22\u5f15\uff0cend\u662f\u7ed3\u675f\u7d22\u5f15\uff0c\u4f46\u4e0d\u5305\u62ecend\u4f4d\u7f6e\u7684\u5b57\u7b26\u3002<\/p>\n<\/p>\n
\u793a\u4f8b\u4ee3\u7801\uff1a<\/h3>\n<\/p>\n
string = "abcdef"<\/p>\n
sliced_string = string[1:4]  # \u7ed3\u679c\u4e3a "bcd"<\/p>\n
print(sliced_string)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u63d0\u53d6\u4e86\u4ece\u7d22\u5f151\u5230\u7d22\u5f153\u7684\u5b57\u7b26\u3002<\/p>\n<\/p>\n
2. \u901a\u8fc7\u5207\u7247\u91cd\u65b0\u6392\u5217\u5b57\u7b26\u4e32<\/h2>\n<\/p>\n
\u901a\u8fc7\u5207\u7247\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u5b57\u7b26\u4e32\u5206\u5272\u6210\u591a\u4e2a\u90e8\u5206\uff0c\u7136\u540e\u91cd\u65b0\u7ec4\u5408\u8fd9\u4e9b\u90e8\u5206\u4ee5\u5b9e\u73b0\u5b57\u7b26\u4e32\u4f4d\u7f6e\u7684\u6539\u53d8\u3002<\/p>\n<\/p>\n
\u793a\u4f8b\u4ee3\u7801\uff1a<\/h3>\n<\/p>\n
original_string = "python"<\/p>\n
part1 = original_string[:2]  # "py"<\/p>\n
part2 = original_string[2:4]  # "th"<\/p>\n
part3 = original_string[4:]  # "on"<\/p>\n
\u91cd\u65b0\u7ec4\u5408<\/strong><\/h2>\n
new_string = part3 + part1 + part2  # "onpyth"<\/p>\n
print(new_string)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5c06\u5b57\u7b26\u4e32\u5206\u5272\u6210\u4e09\u90e8\u5206\uff0c\u7136\u540e\u6309\u7167\u65b0\u7684\u987a\u5e8f\u91cd\u65b0\u7ec4\u5408\u5b83\u4eec\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f<\/strong><\/h2>\n
1. \u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<\/p>\n
\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u4e00\u79cd\u7528\u4e8e\u5339\u914d\u5b57\u7b26\u4e32\u7684\u6a21\u5f0f\u3002\u5b83\u5728\u8bb8\u591a\u7f16\u7a0b\u8bed\u8a00\u4e2d\u90fd\u6709\u5e94\u7528\uff0c\u5c24\u5176\u9002\u5408\u5904\u7406\u590d\u6742\u7684\u5b57\u7b26\u4e32\u64cd\u4f5c\u3002Python\u7684re<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u529f\u80fd\u3002<\/p>\n<\/p>\n
\u57fa\u672c\u793a\u4f8b\uff1a<\/h3>\n<\/p>\n
import re<\/p>\n
pattern = r'\\d+'  # \u5339\u914d\u4e00\u4e2a\u6216\u591a\u4e2a\u6570\u5b57<\/p>\n
string = "There are 123 apples"<\/p>\n
match = re.search(pattern, string)<\/p>\n
if match:<\/p>\n
    print("Found:", match.group())<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6b63\u5219\u8868\u8fbe\u5f0f\\d+<\/code>\u5339\u914d\u5b57\u7b26\u4e32\u4e2d\u7684\u4e00\u4e2a\u6216\u591a\u4e2a\u6570\u5b57\u3002<\/p>\n<\/p>\n
2. \u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u91cd\u65b0\u6392\u5217\u5b57\u7b26\u4e32<\/h2>\n<\/p>\n
\u6b63\u5219\u8868\u8fbe\u5f0f\u4e0d\u4ec5\u53ef\u4ee5\u5339\u914d\u5b57\u7b26\u4e32\uff0c\u8fd8\u53ef\u4ee5\u901a\u8fc7\u66ff\u6362\u529f\u80fd\u91cd\u65b0\u6392\u5217\u5b57\u7b26\u4e32\u4e2d\u7684\u5185\u5bb9\u3002<\/p>\n<\/p>\n
\u793a\u4f8b\u4ee3\u7801\uff1a<\/h3>\n<\/p>\n
import re<\/p>\n
\u539f\u59cb\u5b57\u7b26\u4e32<\/strong><\/h2>\n
original_string = "John Doe"<\/p>\n
\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u5e76\u91cd\u65b0\u6392\u5217<\/strong><\/h2>\n
new_string = re.sub(r'(\\w+) (\\w+)', r'\\2, \\1', original_string)<\/p>\n
print(new_string)  # \u8f93\u51fa "Doe, John"<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6b63\u5219\u8868\u8fbe\u5f0fr'(\\w+) (\\w+)'<\/code>\u5339\u914d\u4e24\u4e2a\u5355\u8bcd\uff0c\u5e76\u901a\u8fc7\u66ff\u6362\u5c06\u5b83\u4eec\u7684\u4f4d\u7f6e\u8fdb\u884c\u4e86\u8c03\u6362\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528\u5185\u7f6e\u51fd\u6570<\/strong><\/h2>\n
1. replace()\u51fd\u6570\u7684\u57fa\u672c\u7528\u6cd5<\/h2>\n<\/p>\n
replace()<\/code>\u51fd\u6570\u662fPython\u5b57\u7b26\u4e32\u5bf9\u8c61\u7684\u4e00\u4e2a\u65b9\u6cd5\uff0c\u7528\u4e8e\u5c06\u5b57\u7b26\u4e32\u4e2d\u7684\u67d0\u4e9b\u90e8\u5206\u66ff\u6362\u4e3a\u5176\u4ed6\u5185\u5bb9\u3002\u5b83\u7684\u57fa\u672c\u8bed\u6cd5\u662fstring.replace(old, new)<\/code>\u3002<\/p>\n<\/p>\n
\u793a\u4f8b\u4ee3\u7801\uff1a<\/h3>\n<\/p>\n
string = "hello world"<\/p>\n
new_string = string.replace("world", "Python")<\/p>\n
print(new_string)  # \u8f93\u51fa "hello Python"<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5c06"world"\u66ff\u6362\u4e3a"Python"\u3002<\/p>\n<\/p>\n
2. \u4f7f\u7528replace()\u51fd\u6570\u4ea4\u6362\u5b57\u7b26\u4e32\u4f4d\u7f6e<\/h2>\n<\/p>\n
\u901a\u8fc7\u591a\u6b21\u8c03\u7528replace()<\/code>\u51fd\u6570\uff0c\u6211\u4eec\u53ef\u4ee5\u4ea4\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u5185\u5bb9\u3002<\/p>\n<\/p>\n
\u793a\u4f8b\u4ee3\u7801\uff1a<\/h3>\n<\/p>\n
# \u539f\u59cb\u5b57\u7b26\u4e32<\/p>\n
original_string = "apple orange"<\/p>\n
\u66ff\u6362\u64cd\u4f5c<\/strong><\/h2>\n
new_string = original_string.replace("apple", "temp").replace("orange", "apple").replace("temp", "orange")<\/p>\n
print(new_string)  # \u8f93\u51fa "orange apple"<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5148\u5c06"apple"\u66ff\u6362\u4e3a\u4e34\u65f6\u5b57\u7b26\u4e32"temp"\uff0c\u518d\u5c06"orange"\u66ff\u6362\u4e3a"apple"\uff0c\u6700\u540e\u5c06"temp"\u66ff\u6362\u56de"orange"\uff0c\u5b9e\u73b0\u4e86\u5b57\u7b26\u4e32\u4e2d\u4e24\u4e2a\u5355\u8bcd\u7684\u4f4d\u7f6e\u4ea4\u6362\u3002<\/p>\n<\/p>\n
\u56db\u3001\u4f7f\u7528\u5217\u8868<\/strong><\/h2>\n
1. \u5217\u8868\u7684\u57fa\u672c\u64cd\u4f5c<\/h2>\n<\/p>\n
\u5217\u8868\u662fPython\u4e2d\u4e00\u4e2a\u975e\u5e38\u7075\u6d3b\u7684\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u7528\u4e8e\u5b58\u50a8\u548c\u64cd\u4f5c\u4e00\u7ec4\u6709\u5e8f\u7684\u5143\u7d20\u3002\u6211\u4eec\u53ef\u4ee5\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5217\u8868\uff0c\u4ece\u800c\u66f4\u65b9\u4fbf\u5730\u64cd\u4f5c\u6bcf\u4e00\u4e2a\u5b57\u7b26\u7684\u4f4d\u7f6e\u3002<\/p>\n<\/p>\n
\u793a\u4f8b\u4ee3\u7801\uff1a<\/h3>\n<\/p>\n
string = "hello"<\/p>\n
char_list = list(string)<\/p>\n
print(char_list)  # \u8f93\u51fa ['h', 'e', 'l', 'l', 'o']<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u4e00\u4e2a\u5b57\u7b26\u5217\u8868\u3002<\/p>\n<\/p>\n
2. \u901a\u8fc7\u5217\u8868\u91cd\u65b0\u6392\u5217\u5b57\u7b26\u4e32<\/h2>\n<\/p>\n
\u901a\u8fc7\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5217\u8868\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u64cd\u4f5c\u6bcf\u4e00\u4e2a\u5b57\u7b26\u7684\u4f4d\u7f6e\uff0c\u7136\u540e\u5c06\u5217\u8868\u91cd\u65b0\u7ec4\u5408\u6210\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n
\u793a\u4f8b\u4ee3\u7801\uff1a<\/h3>\n<\/p>\n
# \u539f\u59cb\u5b57\u7b26\u4e32<\/p>\n
original_string = "abcdef"<\/p>\n
\u8f6c\u6362\u4e3a\u5217\u8868<\/strong><\/h2>\n
char_list = list(original_string)<\/p>\n
\u4ea4\u6362\u4f4d\u7f6e<\/strong><\/h2>\n
char_list[0], char_list[5] = char_list[5], char_list[0]  # \u4ea4\u6362a\u548cf\u7684\u4f4d\u7f6e<\/p>\n
\u8f6c\u6362\u56de\u5b57\u7b26\u4e32<\/strong><\/h2>\n
new_string = ''.join(char_list)<\/p>\n
print(new_string)  # \u8f93\u51fa "fbcdea"<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5c06\u5b57\u7b26\u4e32\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5b57\u7b26\u548c\u6700\u540e\u4e00\u4e2a\u5b57\u7b26\u7684\u4f4d\u7f6e\u8fdb\u884c\u4e86\u4ea4\u6362\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u5176\u4ed6\u9ad8\u7ea7\u65b9\u6cd5<\/strong><\/h2>\n
1. \u4f7f\u7528\u96c6\u5408\u64cd\u4f5c<\/h2>\n<\/p>\n
\u867d\u7136\u96c6\u5408\u662f\u65e0\u5e8f\u7684\uff0c\u4f46\u901a\u8fc7\u96c6\u5408\u64cd\u4f5c\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9e\u73b0\u4e00\u4e9b\u590d\u6742\u7684\u5b57\u7b26\u4e32\u4f4d\u7f6e\u64cd\u4f5c\uff0c\u6bd4\u5982\u53bb\u91cd\u3001\u4ea4\u96c6\u7b49\u3002<\/p>\n<\/p>\n
\u793a\u4f8b\u4ee3\u7801\uff1a<\/h3>\n<\/p>\n
string1 = "abcde"<\/p>\n
string2 = "cdefg"<\/p>\n
\u8f6c\u6362\u4e3a\u96c6\u5408<\/strong><\/h2>\n
set1 = set(string1)<\/p>\n
set2 = set(string2)<\/p>\n
\u53d6\u4ea4\u96c6<\/strong><\/h2>\n
intersection = set1 & set2<\/p>\n
print(intersection)  # \u8f93\u51fa {'c', 'd', 'e'}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u627e\u5230\u4e86\u4e24\u4e2a\u5b57\u7b26\u4e32\u7684\u516c\u5171\u5b57\u7b26\u3002<\/p>\n<\/p>\n
2. \u4f7f\u7528\u5b57\u5178\u64cd\u4f5c<\/h2>\n<\/p>\n
\u5b57\u5178\u662f\u4e00\u79cd\u952e\u503c\u5bf9\u7684\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u7528\u4e8e\u66f4\u590d\u6742\u7684\u5b57\u7b26\u4e32\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
\u793a\u4f8b\u4ee3\u7801\uff1a<\/h3>\n<\/p>\n
string = "aabbcc"<\/p>\n
count_dict = {}<\/p>\n
\u8ba1\u6570\u6bcf\u4e2a\u5b57\u7b26\u7684\u51fa\u73b0\u6b21\u6570<\/strong><\/h2>\n
for char in string:<\/p>\n
    count_dict[char] = count_dict.get(char, 0) + 1<\/p>\n
print(count_dict)  # \u8f93\u51fa {'a': 2, 'b': 2, 'c': 2}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u7edf\u8ba1\u4e86\u5b57\u7b26\u4e32\u4e2d\u6bcf\u4e2a\u5b57\u7b26\u51fa\u73b0\u7684\u6b21\u6570\u3002<\/p>\n<\/p>\n
\u516d\u3001\u603b\u7ed3<\/strong><\/h2>\n
\u901a\u8fc7\u4ee5\u4e0a\u51e0\u79cd\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u5728Python\u4e2d\u7075\u6d3b\u5730\u5b9e\u73b0\u5b57\u7b26\u4e32\u4f4d\u7f6e\u7684\u53d8\u6362\u3002\u5207\u7247\u4e0e\u62fc\u63a5\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u5185\u7f6e\u51fd\u6570\u3001\u5217\u8868\u8f6c\u6362<\/strong>\u90fd\u662f\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u72ec\u7279\u7684\u4f18\u52bf\u548c\u9002\u7528\u573a\u666f\u3002\u638c\u63e1\u8fd9\u4e9b\u6280\u5de7\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u66f4\u9ad8\u6548\u5730\u5904\u7406\u5b57\u7b26\u4e32\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u4ea4\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u5b57\u7b26\u4f4d\u7f6e\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u5b57\u7b26\u4e32\u7684\u5207\u7247\u548c\u62fc\u63a5\u6765\u4ea4\u6362\u7279\u5b9a\u5b57\u7b26\u7684\u4f4d\u7f6e\u3002\u5047\u8bbe\u4f60\u6709\u4e00\u4e2a\u5b57\u7b26\u4e32 s = "hello"<\/code>\uff0c\u5982\u679c\u60f3\u8981\u4ea4\u6362\u7b2c\u4e00\u4e2a\u548c\u7b2c\u4e8c\u4e2a\u5b57\u7b26\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1as = s[1] + s[0] + s[2:]<\/code>\uff0c\u8fd9\u6837\u5c31\u5f97\u5230\u4e86"ehllo"<\/code>\u3002\u8fd9\u79cd\u65b9\u5f0f\u9002\u7528\u4e8e\u4efb\u610f\u5b57\u7b26\u7684\u4ea4\u6362\uff0c\u53ea\u9700\u8c03\u6574\u7d22\u5f15\u5373\u53ef\u3002<\/p>\n
\u5728Python\u4e2d\uff0c\u5982\u4f55\u4f7f\u7528\u5217\u8868\u6765\u4fee\u6539\u5b57\u7b26\u4e32\u4e2d\u7684\u5b57\u7b26\u987a\u5e8f\uff1f<\/strong>
\u5b57\u7b26\u4e32\u5728Python\u4e2d\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u56e0\u6b64\u76f4\u63a5\u4fee\u6539\u5b57\u7b26\u4e32\u4e2d\u7684\u5b57\u7b26\u662f\u4e0d\u53ef\u80fd\u7684\u3002\u53ef\u4ee5\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5217\u8868\uff0c\u7136\u540e\u4fee\u6539\u5217\u8868\u4e2d\u7684\u5143\u7d20\uff0c\u6700\u540e\u518d\u5c06\u5217\u8868\u8f6c\u6362\u56de\u5b57\u7b26\u4e32\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n
s = "hello"\ns_list = list(s)\ns_list[0], s_list[1] = s_list[1], s_list[0]  # \u4ea4\u6362\u7b2c\u4e00\u4e2a\u548c\u7b2c\u4e8c\u4e2a\u5b57\u7b26\nresult = ''.join(s_list)\n<\/code><\/pre>\n
\u6267\u884c\u540e\uff0cresult<\/code>\u5c06\u662f"ehllo"<\/code>\u3002<\/p>\n
\u4f7f\u7528Python\u4e2d\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u80fd\u5426\u66f4\u7075\u6d3b\u5730\u6539\u53d8\u5b57\u7b26\u4e32\u4e2d\u5b57\u7b26\u7684\u4f4d\u7f6e\uff1f<\/strong>
\u6b63\u5219\u8868\u8fbe\u5f0f\u53ef\u4ee5\u7528\u4e8e\u590d\u6742\u7684\u5b57\u7b26\u4e32\u64cd\u4f5c\uff0c\u6bd4\u5982\u5728\u4e0d\u89c4\u5219\u7684\u5b57\u7b26\u4e32\u4e2d\u627e\u5230\u7279\u5b9a\u6a21\u5f0f\u5e76\u4ea4\u6362\u5b57\u7b26\u7684\u4f4d\u7f6e\u3002\u53ef\u4ee5\u4f7f\u7528re.sub()<\/code>\u51fd\u6570\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60f3\u8981\u4ea4\u6362\u4e24\u4e2a\u7279\u5b9a\u5b57\u7b26\uff0c\u53ef\u4ee5\u6784\u9020\u6b63\u5219\u8868\u8fbe\u5f0f\u5e76\u8fdb\u884c\u66ff\u6362\u3002\u8fd9\u6837\u7684\u65b9\u6cd5\u9002\u5408\u4e8e\u9700\u8981\u5339\u914d\u590d\u6742\u6a21\u5f0f\u7684\u60c5\u51b5\uff0c\u589e\u5f3a\u4e86\u64cd\u4f5c\u7684\u7075\u6d3b\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u5b57\u7b26\u4e32\u7684\u6539\u4f4d\u7f6e\u64cd\u4f5c\u53ef\u4ee5\u901a\u8fc7\u5207\u7247\u3001\u8fde\u63a5\u3001\u66ff\u6362\u7b49\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002\u5207\u7247\u3001\u62fc\u63a5\u3001\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u5185\u7f6e\u51fd\u6570 […]","protected":false},"author":3,"featured_media":1051367,"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\/1051358"}],"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=1051358"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1051358\/revisions"}],"predecessor-version":[{"id":1051368,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1051358\/revisions\/1051368"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1051367"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1051358"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1051358"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1051358"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}