{"id":1183580,"date":"2025-01-15T19:16:17","date_gmt":"2025-01-15T11:16:17","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1183580.html"},"modified":"2025-01-15T19:16:20","modified_gmt":"2025-01-15T11:16:20","slug":"python%e5%a6%82%e4%bd%95%e8%bf%9b%e8%a1%8c%e5%ad%97%e7%ac%a6%e8%bf%9e%e6%8e%a5","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1183580.html","title":{"rendered":"python\u5982\u4f55\u8fdb\u884c\u5b57\u7b26\u8fde\u63a5"},"content":{"rendered":"

\"python\u5982\u4f55\u8fdb\u884c\u5b57\u7b26\u8fde\u63a5\"<\/p>\n

Python\u8fdb\u884c\u5b57\u7b26\u8fde\u63a5\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec\u4f7f\u7528\u52a0\u53f7\uff08+\uff09\u64cd\u4f5c\u7b26\u3001join()\u65b9\u6cd5\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u65b9\u6cd5\uff08\u5982f-string\u3001format()\u65b9\u6cd5\uff09\u3001\u4ee5\u53ca\u901a\u8fc7\u5b57\u7b26\u4e32\u6a21\u677f\u7b49\u3002<\/strong> \u5176\u4e2d\uff0cjoin()\u65b9\u6cd5<\/strong> \u662f\u4e00\u79cd\u9ad8\u6548\u4e14\u5e38\u7528\u7684\u65b9\u6cd5\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u79cd\u65b9\u6cd5\u3002<\/p>\n<\/p>\n

join() \u65b9\u6cd5\u662fPython\u4e2d\u8fde\u63a5\u5b57\u7b26\u4e32\u7684\u5e38\u7528\u65b9\u6cd5\u4e4b\u4e00\u3002\u5b83\u901a\u8fc7\u6307\u5b9a\u4e00\u4e2a\u5206\u9694\u7b26\uff0c\u5c06\u4e00\u4e2a\u53ef\u8fed\u4ee3\u5bf9\u8c61\uff08\u5982\u5217\u8868\u3001\u5143\u7ec4\u7b49\uff09\u4e2d\u7684\u5143\u7d20\u8fde\u63a5\u6210\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u3002\u76f8\u6bd4\u4e8e\u4f7f\u7528\u52a0\u53f7\uff08+\uff09\u64cd\u4f5c\u7b26\u9010\u4e00\u8fde\u63a5\u5b57\u7b26\u4e32\uff0cjoin() \u65b9\u6cd5\u901a\u5e38\u5177\u6709\u66f4\u9ad8\u7684\u6548\u7387\uff0c\u7279\u522b\u662f\u5728\u9700\u8981\u8fde\u63a5\u5927\u91cf\u5b57\u7b26\u4e32\u65f6\u3002<\/strong><\/p>\n<\/p>\n

\u4f8b\u5982\uff1a<\/p>\n<\/p>\n

# \u4f7f\u7528 join() \u65b9\u6cd5\u8fdb\u884c\u5b57\u7b26\u4e32\u8fde\u63a5<\/p>\n
words = ["Hello", "world", "welcome", "to", "Python"]<\/p>\n
sentence = " ".join(words)<\/p>\n
print(sentence)  # \u8f93\u51fa: Hello world welcome to Python<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u7a7a\u683c\u5b57\u7b26\u4f5c\u4e3a\u5206\u9694\u7b26\uff0c\u5c06\u5217\u8868\u4e2d\u7684\u6240\u6709\u5b57\u7b26\u4e32\u5143\u7d20\u8fde\u63a5\u6210\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n
\u4e00\u3001\u4f7f\u7528\u52a0\u53f7\uff08+\uff09\u64cd\u4f5c\u7b26\u8fde\u63a5\u5b57\u7b26\u4e32<\/strong><\/h2>\n
\u52a0\u53f7\uff08+\uff09\u64cd\u4f5c\u7b26\u662f\u6700\u7b80\u5355\u548c\u76f4\u89c2\u7684\u5b57\u7b26\u4e32\u8fde\u63a5\u65b9\u6cd5\u3002\u5b83\u5c06\u4e24\u4e2a\u6216\u591a\u4e2a\u5b57\u7b26\u4e32\u8fde\u63a5\u5728\u4e00\u8d77\u3002<\/p>\n<\/p>\n
# \u4f7f\u7528\u52a0\u53f7\uff08+\uff09\u64cd\u4f5c\u7b26\u8fdb\u884c\u5b57\u7b26\u4e32\u8fde\u63a5<\/p>\n
str1 = "Hello"<\/p>\n
str2 = "world"<\/p>\n
result = str1 + " " + str2<\/p>\n
print(result)  # \u8f93\u51fa: Hello world<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u52a0\u53f7\u64cd\u4f5c\u7b26\u867d\u7136\u7b80\u5355\u6613\u7528\uff0c\u4f46\u5728\u8fde\u63a5\u5927\u91cf\u5b57\u7b26\u4e32\u65f6\uff0c\u6027\u80fd\u53ef\u80fd\u4e0d\u5982\u5176\u4ed6\u65b9\u6cd5\u9ad8\u6548\u3002\u56e0\u4e3a\u6bcf\u6b21\u4f7f\u7528\u52a0\u53f7\u64cd\u4f5c\u7b26\u8fde\u63a5\u5b57\u7b26\u4e32\u65f6\uff0cPython\u90fd\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u5bf9\u8c61\uff0c\u8fd9\u4f1a\u589e\u52a0\u5185\u5b58\u5f00\u9500\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528 join() \u65b9\u6cd5\u8fde\u63a5\u5b57\u7b26\u4e32<\/strong><\/h2>\n
join() \u65b9\u6cd5\u662fPython\u4e2d\u8fde\u63a5\u5b57\u7b26\u4e32\u7684\u9ad8\u6548\u65b9\u6cd5\u4e4b\u4e00\u3002\u5b83\u901a\u8fc7\u6307\u5b9a\u4e00\u4e2a\u5206\u9694\u7b26\uff0c\u5c06\u4e00\u4e2a\u53ef\u8fed\u4ee3\u5bf9\u8c61\uff08\u5982\u5217\u8868\u3001\u5143\u7ec4\u7b49\uff09\u4e2d\u7684\u5143\u7d20\u8fde\u63a5\u6210\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n
# \u4f7f\u7528 join() \u65b9\u6cd5\u8fdb\u884c\u5b57\u7b26\u4e32\u8fde\u63a5<\/p>\n
words = ["Hello", "world", "welcome", "to", "Python"]<\/p>\n
sentence = " ".join(words)<\/p>\n
print(sentence)  # \u8f93\u51fa: Hello world welcome to Python<\/p>\n
<\/code><\/pre>\n<\/p>\n
join() \u65b9\u6cd5\u7684\u4f18\u52bf\u5728\u4e8e\u5176\u9ad8\u6548\u6027\uff0c\u7279\u522b\u662f\u5728\u9700\u8981\u8fde\u63a5\u5927\u91cf\u5b57\u7b26\u4e32\u65f6\u3002\u6b64\u5916\uff0cjoin() \u65b9\u6cd5\u8fd8\u53ef\u4ee5\u7075\u6d3b\u5730\u6307\u5b9a\u5206\u9694\u7b26\uff0c\u5982\u9017\u53f7\u3001\u7a7a\u683c\u3001\u6362\u884c\u7b26\u7b49\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u65b9\u6cd5\u8fde\u63a5\u5b57\u7b26\u4e32<\/strong><\/h2>\n
Python\u63d0\u4f9b\u4e86\u591a\u79cd\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\uff0c\u5982f-string\u3001format()\u65b9\u6cd5\u548c\u767e\u5206\u53f7\uff08%\uff09\u64cd\u4f5c\u7b26\u3002<\/p>\n<\/p>\n
1. f-string \u683c\u5f0f\u5316\u5b57\u7b26\u4e32<\/h2>\n<\/p>\n
f-string\uff08\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff09\u662fPython 3.6\u5f15\u5165\u7684\u4e00\u79cd\u65b0\u683c\u5f0f\u5316\u65b9\u6cd5\uff0c\u5177\u6709\u7b80\u6d01\u3001\u6613\u8bfb\u548c\u9ad8\u6548\u7684\u7279\u70b9\u3002<\/p>\n<\/p>\n
# \u4f7f\u7528 f-string \u8fdb\u884c\u5b57\u7b26\u4e32\u8fde\u63a5<\/p>\n
name = "Alice"<\/p>\n
age = 30<\/p>\n
info = f"Name: {name}, Age: {age}"<\/p>\n
print(info)  # \u8f93\u51fa: Name: Alice, Age: 30<\/p>\n
<\/code><\/pre>\n<\/p>\n
2. format() \u65b9\u6cd5\u683c\u5f0f\u5316\u5b57\u7b26\u4e32<\/h2>\n<\/p>\n
format() \u65b9\u6cd5\u662fPython 3\u4e2d\u63a8\u8350\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6cd5\uff0c\u5177\u6709\u8f83\u9ad8\u7684\u53ef\u8bfb\u6027\u548c\u7075\u6d3b\u6027\u3002<\/p>\n<\/p>\n
# \u4f7f\u7528 format() \u65b9\u6cd5\u8fdb\u884c\u5b57\u7b26\u4e32\u8fde\u63a5<\/p>\n
name = "Bob"<\/p>\n
age = 25<\/p>\n
info = "Name: {}, Age: {}".format(name, age)<\/p>\n
print(info)  # \u8f93\u51fa: Name: Bob, Age: 25<\/p>\n
<\/code><\/pre>\n<\/p>\n
3. \u767e\u5206\u53f7\uff08%\uff09\u64cd\u4f5c\u7b26\u683c\u5f0f\u5316\u5b57\u7b26\u4e32<\/h2>\n<\/p>\n
\u767e\u5206\u53f7\uff08%\uff09\u64cd\u4f5c\u7b26\u662fPython\u4e2d\u8f83\u65e9\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6cd5\uff0c\u867d\u7136\u5728\u65b0\u7248\u672c\u4e2d\u4e0d\u518d\u63a8\u8350\u4f7f\u7528\uff0c\u4f46\u5728\u4e00\u4e9b\u65e7\u4ee3\u7801\u4e2d\u4ecd\u7136\u53ef\u4ee5\u89c1\u5230\u3002<\/p>\n<\/p>\n
# \u4f7f\u7528\u767e\u5206\u53f7\uff08%\uff09\u64cd\u4f5c\u7b26\u8fdb\u884c\u5b57\u7b26\u4e32\u8fde\u63a5<\/p>\n
name = "Charlie"<\/p>\n
age = 35<\/p>\n
info = "Name: %s, Age: %d" % (name, age)<\/p>\n
print(info)  # \u8f93\u51fa: Name: Charlie, Age: 35<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u4f7f\u7528\u5b57\u7b26\u4e32\u6a21\u677f\u8fde\u63a5\u5b57\u7b26\u4e32<\/strong><\/h2>\n
\u5b57\u7b26\u4e32\u6a21\u677f\uff08template string\uff09\u662f\u901a\u8fc7\u5b9a\u4e49\u6a21\u677f\u5b57\u7b26\u4e32\uff0c\u5e76\u4f7f\u7528\u6a21\u677f\u66ff\u6362\u7684\u65b9\u6cd5\u6765\u751f\u6210\u65b0\u7684\u5b57\u7b26\u4e32\u3002Python\u7684string\u6a21\u5757\u63d0\u4f9b\u4e86Template\u7c7b\u6765\u5b9e\u73b0\u8fd9\u4e00\u529f\u80fd\u3002<\/p>\n<\/p>\n
from string import Template<\/p>\n
\u4f7f\u7528\u5b57\u7b26\u4e32\u6a21\u677f\u8fdb\u884c\u5b57\u7b26\u4e32\u8fde\u63a5<\/strong><\/h2>\n
template = Template("Name: $name, Age: $age")<\/p>\n
info = template.substitute(name="David", age=40)<\/p>\n
print(info)  # \u8f93\u51fa: Name: David, Age: 40<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5b57\u7b26\u4e32\u6a21\u677f\u9002\u7528\u4e8e\u9700\u8981\u751f\u6210\u9ad8\u5ea6\u81ea\u5b9a\u4e49\u548c\u52a8\u6001\u5b57\u7b26\u4e32\u7684\u573a\u666f\uff0c\u7279\u522b\u662f\u5728\u5904\u7406\u590d\u6742\u7684\u5b57\u7b26\u4e32\u6a21\u677f\u65f6\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u548cjoin() \u65b9\u6cd5\u7ed3\u5408<\/strong><\/h2>\n
\u5728\u9700\u8981\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u590d\u6742\u5904\u7406\u6216\u8fc7\u6ee4\u65f6\uff0c\u53ef\u4ee5\u7ed3\u5408\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u548cjoin() \u65b9\u6cd5\u3002<\/p>\n<\/p>\n
# \u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u548c join() \u65b9\u6cd5\u7ed3\u5408\u8fdb\u884c\u5b57\u7b26\u4e32\u8fde\u63a5<\/p>\n
numbers = [str(i) for i in range(1, 6)]<\/p>\n
result = ", ".join(numbers)<\/p>\n
print(result)  # \u8f93\u51fa: 1, 2, 3, 4, 5<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u5217\u8868\u63a8\u5bfc\u5f0f\uff0c\u53ef\u4ee5\u5bf9\u539f\u59cb\u6570\u636e\u8fdb\u884c\u5904\u7406\uff0c\u5e76\u751f\u6210\u4e00\u4e2a\u65b0\u7684\u5217\u8868\uff0c\u7136\u540e\u4f7f\u7528join() \u65b9\u6cd5\u5c06\u5217\u8868\u4e2d\u7684\u5143\u7d20\u8fde\u63a5\u6210\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n
\u516d\u3001\u4f7f\u7528\u751f\u6210\u5668\u8868\u8fbe\u5f0f\u548cjoin() \u65b9\u6cd5\u7ed3\u5408<\/strong><\/h2>\n
\u751f\u6210\u5668\u8868\u8fbe\u5f0f\u4e0e\u5217\u8868\u63a8\u5bfc\u5f0f\u7c7b\u4f3c\uff0c\u4f46\u751f\u6210\u5668\u8868\u8fbe\u5f0f\u4e0d\u4f1a\u4e00\u6b21\u6027\u751f\u6210\u6240\u6709\u5143\u7d20\uff0c\u800c\u662f\u6309\u9700\u751f\u6210\u5143\u7d20\uff0c\u5177\u6709\u66f4\u9ad8\u7684\u5185\u5b58\u6548\u7387\u3002<\/p>\n<\/p>\n
# \u4f7f\u7528\u751f\u6210\u5668\u8868\u8fbe\u5f0f\u548c join() \u65b9\u6cd5\u7ed3\u5408\u8fdb\u884c\u5b57\u7b26\u4e32\u8fde\u63a5<\/p>\n
result = ", ".join(str(i) for i in range(1, 6))<\/p>\n
print(result)  # \u8f93\u51fa: 1, 2, 3, 4, 5<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u751f\u6210\u5668\u8868\u8fbe\u5f0f\u5728\u5904\u7406\u5927\u6570\u636e\u96c6\u65f6\u5177\u6709\u660e\u663e\u7684\u4f18\u52bf\uff0c\u56e0\u4e3a\u5b83\u4e0d\u4f1a\u4e00\u6b21\u6027\u52a0\u8f7d\u6240\u6709\u6570\u636e\u5230\u5185\u5b58\u4e2d\uff0c\u800c\u662f\u6309\u9700\u751f\u6210\u6570\u636e\u3002<\/p>\n<\/p>\n
\u4e03\u3001\u4f7f\u7528reduce() \u51fd\u6570\u8fde\u63a5\u5b57\u7b26\u4e32<\/strong><\/h2>\n
reduce() \u51fd\u6570\u53ef\u4ee5\u5bf9\u4e00\u4e2a\u53ef\u8fed\u4ee3\u5bf9\u8c61\u4e2d\u7684\u5143\u7d20\u8fdb\u884c\u7d2f\u79ef\u64cd\u4f5c\uff0c\u4ece\u800c\u5b9e\u73b0\u5b57\u7b26\u4e32\u7684\u8fde\u63a5\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0creduce() \u51fd\u6570\u5728Python 3\u4e2d\u88ab\u79fb\u52a8\u5230functools\u6a21\u5757\u4e2d\u3002<\/p>\n<\/p>\n
from functools import reduce<\/p>\n
\u4f7f\u7528 reduce() \u51fd\u6570\u8fdb\u884c\u5b57\u7b26\u4e32\u8fde\u63a5<\/strong><\/h2>\n
words = ["Hello", "world", "welcome", "to", "Python"]<\/p>\n
result = reduce(lambda x, y: x + " " + y, words)<\/p>\n
print(result)  # \u8f93\u51fa: Hello world welcome to Python<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u867d\u7136reduce() \u51fd\u6570\u53ef\u4ee5\u5b9e\u73b0\u5b57\u7b26\u4e32\u8fde\u63a5\uff0c\u4f46\u5b83\u7684\u53ef\u8bfb\u6027\u548c\u7075\u6d3b\u6027\u4e0d\u5982join() \u65b9\u6cd5\u548c\u5176\u4ed6\u683c\u5f0f\u5316\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\u516b\u3001\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u8fde\u63a5\u5b57\u7b26\u4e32<\/strong><\/h2>\n
\u5728\u4e00\u4e9b\u7279\u6b8a\u573a\u666f\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u5904\u7406\u548c\u8fde\u63a5\u3002Python\u7684re\u6a21\u5757\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u64cd\u4f5c\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
import re<\/p>\n
\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u8fdb\u884c\u5b57\u7b26\u4e32\u8fde\u63a5<\/strong><\/h2>\n
words = ["Hello", "world", "welcome", "to", "Python"]<\/p>\n
pattern = re.compile(r"\\s+")<\/p>\n
result = pattern.sub(" ", " ".join(words))<\/p>\n
print(result)  # \u8f93\u51fa: Hello world welcome to Python<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u6b63\u5219\u8868\u8fbe\u5f0f\u9002\u7528\u4e8e\u9700\u8981\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u590d\u6742\u6a21\u5f0f\u5339\u914d\u548c\u66ff\u6362\u7684\u573a\u666f\uff0c\u4f46\u5728\u4e00\u822c\u7684\u5b57\u7b26\u4e32\u8fde\u63a5\u64cd\u4f5c\u4e2d\uff0c\u5176\u590d\u6742\u5ea6\u548c\u6027\u80fd\u53ef\u80fd\u4e0d\u5982\u5176\u4ed6\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\u4e5d\u3001\u4f7f\u7528\u5b57\u7b26\u4e32\u62fc\u63a5\u8fd0\u7b97\u7b26\u8fde\u63a5\u5b57\u7b26\u4e32<\/strong><\/h2>\n
Python\u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e9b\u4e13\u95e8\u7684\u5b57\u7b26\u4e32\u62fc\u63a5\u8fd0\u7b97\u7b26\uff0c\u5982\u4e58\u6cd5\uff08*\uff09\u64cd\u4f5c\u7b26\uff0c\u53ef\u4ee5\u5c06\u4e00\u4e2a\u5b57\u7b26\u4e32\u91cd\u590d\u591a\u6b21\uff0c\u5e76\u5c06\u7ed3\u679c\u8fde\u63a5\u6210\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n
# \u4f7f\u7528\u4e58\u6cd5\uff08*\uff09\u64cd\u4f5c\u7b26\u8fdb\u884c\u5b57\u7b26\u4e32\u8fde\u63a5<\/p>\n
str1 = "Hello"<\/p>\n
result = (str1 + " ") * 3<\/p>\n
print(result)  # \u8f93\u51fa: Hello Hello Hello <\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e58\u6cd5\uff08*\uff09\u64cd\u4f5c\u7b26\u9002\u7528\u4e8e\u9700\u8981\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u91cd\u590d\u548c\u8fde\u63a5\u7684\u573a\u666f\uff0c\u4f46\u5728\u4e00\u822c\u7684\u5b57\u7b26\u4e32\u8fde\u63a5\u64cd\u4f5c\u4e2d\uff0c\u5176\u5e94\u7528\u8303\u56f4\u8f83\u4e3a\u6709\u9650\u3002<\/p>\n<\/p>\n
\u5341\u3001\u4f7f\u7528\u5b57\u7b26\u4e32\u7f13\u51b2\u533a\u8fde\u63a5\u5b57\u7b26\u4e32<\/strong><\/h2>\n
\u5728\u9700\u8981\u8fdb\u884c\u5927\u91cf\u5b57\u7b26\u4e32\u8fde\u63a5\u64cd\u4f5c\u65f6\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u5b57\u7b26\u4e32\u7f13\u51b2\u533a\uff08StringIO\uff09\u6765\u63d0\u9ad8\u6027\u80fd\u3002Python\u7684io\u6a21\u5757\u63d0\u4f9b\u4e86StringIO\u7c7b\u6765\u5b9e\u73b0\u8fd9\u4e00\u529f\u80fd\u3002<\/p>\n<\/p>\n
from io import StringIO<\/p>\n
\u4f7f\u7528\u5b57\u7b26\u4e32\u7f13\u51b2\u533a\u8fdb\u884c\u5b57\u7b26\u4e32\u8fde\u63a5<\/strong><\/h2>\n
buffer = StringIO()<\/p>\n
buffer.write("Hello")<\/p>\n
buffer.write(" ")<\/p>\n
buffer.write("world")<\/p>\n
result = buffer.getvalue()<\/p>\n
print(result)  # \u8f93\u51fa: Hello world<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5b57\u7b26\u4e32\u7f13\u51b2\u533a\u9002\u7528\u4e8e\u9700\u8981\u8fdb\u884c\u5927\u91cf\u5b57\u7b26\u4e32\u62fc\u63a5\u64cd\u4f5c\u7684\u573a\u666f\uff0c\u5176\u6027\u80fd\u901a\u5e38\u4f18\u4e8e\u9010\u4e00\u4f7f\u7528\u52a0\u53f7\uff08+\uff09\u64cd\u4f5c\u7b26\u8fdb\u884c\u8fde\u63a5\u3002<\/p>\n<\/p>\n
\u5341\u4e00\u3001\u4f7f\u7528\u5b57\u7b26\u4e32\u7d2f\u52a0\u5668\u8fde\u63a5\u5b57\u7b26\u4e32<\/strong><\/h2>\n
\u5b57\u7b26\u4e32\u7d2f\u52a0\u5668\u662f\u4e00\u79cd\u9ad8\u6548\u7684\u5b57\u7b26\u4e32\u8fde\u63a5\u65b9\u6cd5\uff0c\u9002\u7528\u4e8e\u9700\u8981\u8fdb\u884c\u5927\u91cf\u5b57\u7b26\u4e32\u62fc\u63a5\u64cd\u4f5c\u7684\u573a\u666f\u3002\u901a\u8fc7\u9884\u5148\u5206\u914d\u4e00\u4e2a\u8db3\u591f\u5927\u7684\u7f13\u51b2\u533a\uff0c\u53ef\u4ee5\u907f\u514d\u9891\u7e41\u7684\u5185\u5b58\u5206\u914d\u548c\u590d\u5236\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
# \u4f7f\u7528\u5b57\u7b26\u4e32\u7d2f\u52a0\u5668\u8fdb\u884c\u5b57\u7b26\u4e32\u8fde\u63a5<\/p>\n
strings = ["Hello", "world", "welcome", "to", "Python"]<\/p>\n
buffer = []<\/p>\n
for s in strings:<\/p>\n
    buffer.append(s)<\/p>\n
result = " ".join(buffer)<\/p>\n
print(result)  # \u8f93\u51fa: Hello world welcome to Python<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5b57\u7b26\u4e32\u7d2f\u52a0\u5668\u53ef\u4ee5\u907f\u514d\u9891\u7e41\u7684\u5185\u5b58\u5206\u914d\u548c\u590d\u5236\u64cd\u4f5c\uff0c\u4ece\u800c\u63d0\u9ad8\u5b57\u7b26\u4e32\u8fde\u63a5\u64cd\u4f5c\u7684\u6027\u80fd\u3002<\/p>\n<\/p>\n
\u5341\u4e8c\u3001\u603b\u7ed3<\/strong><\/h2>\n
Python\u63d0\u4f9b\u4e86\u591a\u79cd\u5b57\u7b26\u4e32\u8fde\u63a5\u65b9\u6cd5\uff0c\u5305\u62ec\u52a0\u53f7\uff08+\uff09\u64cd\u4f5c\u7b26\u3001join() \u65b9\u6cd5\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u65b9\u6cd5\uff08\u5982f-string\u3001format() \u65b9\u6cd5\uff09\u3001\u5b57\u7b26\u4e32\u6a21\u677f\u3001\u5217\u8868\u63a8\u5bfc\u5f0f\u548c\u751f\u6210\u5668\u8868\u8fbe\u5f0f\u7ed3\u5408join() \u65b9\u6cd5\u3001reduce() \u51fd\u6570\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u5b57\u7b26\u4e32\u62fc\u63a5\u8fd0\u7b97\u7b26\u3001\u5b57\u7b26\u4e32\u7f13\u51b2\u533a\u548c\u5b57\u7b26\u4e32\u7d2f\u52a0\u5668\u7b49\u3002\u4e0d\u540c\u7684\u65b9\u6cd5\u9002\u7528\u4e8e\u4e0d\u540c\u7684\u573a\u666f\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\u5728\u9009\u62e9\u5b57\u7b26\u4e32\u8fde\u63a5\u65b9\u6cd5\u65f6\uff0cjoin() \u65b9\u6cd5\u901a\u5e38\u662f\u9ad8\u6548\u4e14\u63a8\u8350\u7684\u9009\u62e9<\/strong>\uff0c\u7279\u522b\u662f\u5728\u9700\u8981\u8fde\u63a5\u5927\u91cf\u5b57\u7b26\u4e32\u65f6\u3002\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u65b9\u6cd5\uff08\u5982f-string\u3001format() \u65b9\u6cd5\uff09\u5177\u6709\u8f83\u9ad8\u7684\u53ef\u8bfb\u6027\u548c\u7075\u6d3b\u6027\uff0c\u9002\u7528\u4e8e\u751f\u6210\u52a8\u6001\u5b57\u7b26\u4e32\u7684\u573a\u666f\u3002\u5b57\u7b26\u4e32\u7f13\u51b2\u533a\u548c\u5b57\u7b26\u4e32\u7d2f\u52a0\u5668\u9002\u7528\u4e8e\u9700\u8981\u8fdb\u884c\u5927\u91cf\u5b57\u7b26\u4e32\u62fc\u63a5\u64cd\u4f5c\u7684\u573a\u666f\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n<\/p>\n
\u901a\u8fc7\u5408\u7406\u9009\u62e9\u548c\u4f7f\u7528\u8fd9\u4e9b\u5b57\u7b26\u4e32\u8fde\u63a5\u65b9\u6cd5\uff0c\u53ef\u4ee5\u63d0\u9ad8Python\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u6267\u884c\u6548\u7387\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u5927\u5bb6\u7406\u89e3\u548c\u638c\u63e1Python\u4e2d\u7684\u5b57\u7b26\u4e32\u8fde\u63a5\u65b9\u6cd5\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u8fde\u63a5\u591a\u4e2a\u5b57\u7b26\u4e32\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528+<\/code>\u8fd0\u7b97\u7b26\u5c06\u591a\u4e2a\u5b57\u7b26\u4e32\u8fde\u63a5\u5728\u4e00\u8d77\u3002\u4f8b\u5982\uff0cstr1 + str2<\/code>\u4f1a\u5c06str1<\/code>\u548cstr2<\/code>\u5408\u5e76\u4e3a\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u3002\u6b64\u5916\uff0c\u4f7f\u7528join()<\/code>\u65b9\u6cd5\u4e5f\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u65b9\u5f0f\uff0c\u53ef\u4ee5\u5c06\u5b57\u7b26\u4e32\u5217\u8868\u8fde\u63a5\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u8bed\u6cd5\u4e3a\uff1a''.join(list_of_strings)<\/code>\uff0c\u5176\u4e2dlist_of_strings<\/code>\u662f\u8981\u8fde\u63a5\u7684\u5b57\u7b26\u4e32\u5217\u8868\u3002<\/p>\n
Python\u4e2d\u662f\u5426\u6709\u5185\u5efa\u7684\u65b9\u6cd5\u53ef\u4ee5\u8fde\u63a5\u5b57\u7b26\u4e32\uff1f<\/strong>
\u786e\u5b9e\uff0cPython\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u8fde\u63a5\u5b57\u7b26\u4e32\u3002\u9664\u4e86\u4f7f\u7528+<\/code>\u8fd0\u7b97\u7b26\u548cjoin()<\/code>\u65b9\u6cd5\u5916\uff0c\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff08\u5982\u4f7f\u7528f-string<\/code>\u6216str.format()<\/code>\uff09\u4e5f\u53ef\u4ee5\u5b9e\u73b0\u5b57\u7b26\u4e32\u7684\u8fde\u63a5\u548c\u63d2\u5165\u3002\u4f8b\u5982\uff0c\u4f7f\u7528f'{str1} {str2}'<\/code>\u53ef\u4ee5\u5728\u5b57\u7b26\u4e32\u4e2d\u5d4c\u5165\u53d8\u91cf\uff0c\u5f62\u6210\u8fde\u63a5\u6548\u679c\u3002<\/p>\n
\u5982\u4f55\u5728Python\u4e2d\u8fde\u63a5\u5b57\u7b26\u4e32\u5e76\u6dfb\u52a0\u5206\u9694\u7b26\uff1f<\/strong>
\u8981\u5728\u8fde\u63a5\u5b57\u7b26\u4e32\u65f6\u6dfb\u52a0\u5206\u9694\u7b26\uff0c\u53ef\u4ee5\u4f7f\u7528join()<\/code>\u65b9\u6cd5\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u60f3\u7528\u9017\u53f7\u8fde\u63a5\u591a\u4e2a\u5b57\u7b26\u4e32\uff0c\u53ef\u4ee5\u8fd9\u6837\u505a\uff1a','.join(list_of_strings)<\/code>\u3002\u8fd9\u5c06\u628a\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5b57\u7b26\u4e32\u7528\u9017\u53f7\u9694\u5f00\uff0c\u751f\u6210\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u3002\u5982\u679c\u4f60\u5e0c\u671b\u4f7f\u7528\u5176\u4ed6\u5206\u9694\u7b26\uff0c\u53ea\u9700\u66ff\u6362','<\/code>\u4e3a\u4f60\u60f3\u8981\u7684\u4efb\u4f55\u5b57\u7b26\u6216\u5b57\u7b26\u4e32\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u8fdb\u884c\u5b57\u7b26\u8fde\u63a5\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec\u4f7f\u7528\u52a0\u53f7\uff08+\uff09\u64cd\u4f5c\u7b26\u3001join()\u65b9\u6cd5\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u65b9\u6cd5\uff08\u5982f-st […]","protected":false},"author":3,"featured_media":1183593,"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\/1183580"}],"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=1183580"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1183580\/revisions"}],"predecessor-version":[{"id":1183594,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1183580\/revisions\/1183594"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1183593"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1183580"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1183580"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1183580"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}