{"id":1118265,"date":"2025-01-08T18:33:51","date_gmt":"2025-01-08T10:33:51","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1118265.html"},"modified":"2025-01-08T18:33:53","modified_gmt":"2025-01-08T10:33:53","slug":"python%e5%a6%82%e4%bd%95%e5%9c%a8%e5%ad%97%e7%ac%a6%e4%b8%b2%e5%89%8d%e9%9d%a2%e5%8a%a0%e5%ad%97%e7%ac%a6","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1118265.html","title":{"rendered":"python\u5982\u4f55\u5728\u5b57\u7b26\u4e32\u524d\u9762\u52a0\u5b57\u7b26"},"content":{"rendered":"

\"python\u5982\u4f55\u5728\u5b57\u7b26\u4e32\u524d\u9762\u52a0\u5b57\u7b26\"<\/p>\n

\u5728 Python \u4e2d\uff0c\u8981\u5728\u5b57\u7b26\u4e32\u524d\u9762\u52a0\u5b57\u7b26\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u8fde\u63a5\uff08concatenation\uff09\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff08f-strings\uff09\u548c join \u65b9\u6cd5<\/strong>\u3002\u5176\u4e2d\uff0c\u5b57\u7b26\u4e32\u8fde\u63a5\u662f\u6700\u5e38\u7528\u4e14\u7b80\u5355\u7684\u4e00\u79cd\u65b9\u6cd5\u3002\u901a\u8fc7\u5728\u5b57\u7b26\u4e32\u524d\u9762\u6dfb\u52a0\u5b57\u7b26\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u6570\u636e\u7684\u683c\u5f0f\u5316\u3001\u6807\u8bc6\u7b26\u53f7\u3001\u4ee5\u53ca\u5176\u4ed6\u7528\u9014\u3002\u63a5\u4e0b\u6765\u6211\u5c06\u8be6\u7ec6\u63cf\u8ff0\u5176\u4e2d\u4e00\u79cd\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u591a\u79cd\u5b9e\u73b0\u65b9\u5f0f\u3002<\/p>\n<\/p>\n

\u5b57\u7b26\u4e32\u8fde\u63a5\uff08Concatenation\uff09<\/h3>\n<\/p>\n

\u5b57\u7b26\u4e32\u8fde\u63a5\u662f\u6700\u76f4\u63a5\u548c\u7b80\u5355\u7684\u65b9\u6cd5\u3002\u901a\u8fc7\u4f7f\u7528 +<\/code> \u8fd0\u7b97\u7b26\uff0c\u53ef\u4ee5\u5c06\u5b57\u7b26\u6dfb\u52a0\u5230\u5b57\u7b26\u4e32\u7684\u5f00\u5934\u3002<\/p>\n<\/p>\n

original_string = "world"<\/p>\n
new_string = "Hello " + original_string<\/p>\n
print(new_string)  # \u8f93\u51fa\uff1aHello world<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff08f-strings\uff09<\/h3>\n<\/p>\n
Python 3.6 \u53ca\u4ee5\u4e0a\u7248\u672c\u5f15\u5165\u4e86 f-strings\uff0c\u5b83\u662f\u4e00\u79cd\u975e\u5e38\u5f3a\u5927\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6cd5\u3002\u4f7f\u7528 f-strings\uff0c\u53ef\u4ee5\u5728\u5b57\u7b26\u4e32\u4e2d\u5d4c\u5165\u8868\u8fbe\u5f0f\u3002<\/p>\n<\/p>\n
original_string = "world"<\/p>\n
new_string = f"Hello {original_string}"<\/p>\n
print(new_string)  # \u8f93\u51fa\uff1aHello world<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528 join \u65b9\u6cd5<\/h3>\n<\/p>\n
join<\/code> \u65b9\u6cd5\u662f\u53e6\u4e00\u4e2a\u53ef\u4ee5\u7528\u6765\u5728\u5b57\u7b26\u4e32\u524d\u9762\u6dfb\u52a0\u5b57\u7b26\u7684\u65b9\u6cd5\u3002\u5b83\u901a\u8fc7\u5c06\u4e00\u4e2a\u5b57\u7b26\u6216\u5b57\u7b26\u4e32\u63d2\u5165\u5230\u5b57\u7b26\u4e32\u7684\u6bcf\u4e2a\u5143\u7d20\u4e4b\u95f4\uff0c\u751f\u6210\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n
original_string = "world"<\/p>\n
new_string = "".join(["Hello ", original_string])<\/p>\n
print(new_string)  # \u8f93\u51fa\uff1aHello world<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e00\u3001\u5b57\u7b26\u4e32\u8fde\u63a5\uff08Concatenation\uff09<\/h2>\n<\/p>\n
\u57fa\u672c\u4f7f\u7528<\/h3>\n<\/p>\n
\u5b57\u7b26\u4e32\u8fde\u63a5\u662f\u6700\u57fa\u672c\u7684\u64cd\u4f5c\u4e4b\u4e00\u3002\u901a\u8fc7\u4f7f\u7528 +<\/code> \u8fd0\u7b97\u7b26\uff0c\u53ef\u4ee5\u8f7b\u677e\u5c06\u65b0\u7684\u5b57\u7b26\u6216\u5b57\u7b26\u4e32\u6dfb\u52a0\u5230\u73b0\u6709\u5b57\u7b26\u4e32\u7684\u5f00\u5934\u3002<\/p>\n<\/p>\n
original_string = "world"<\/p>\n
new_string = "Hello " + original_string<\/p>\n
print(new_string)  # \u8f93\u51fa\uff1aHello world<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u591a\u4e2a\u5b57\u7b26\u4e32\u8fde\u63a5<\/h3>\n<\/p>\n
\u5f53\u9700\u8981\u8fde\u63a5\u591a\u4e2a\u5b57\u7b26\u4e32\u65f6\uff0c\u4ecd\u7136\u53ef\u4ee5\u4f7f\u7528 +<\/code> \u8fd0\u7b97\u7b26\uff1a<\/p>\n<\/p>\n
original_string = "world"<\/p>\n
prefix = "Hello"<\/p>\n
suffix = "!"<\/p>\n
new_string = prefix + " " + original_string + suffix<\/p>\n
print(new_string)  # \u8f93\u51fa\uff1aHello world!<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u6027\u80fd\u6ce8\u610f\u4e8b\u9879<\/h3>\n<\/p>\n
\u867d\u7136 +<\/code> \u8fd0\u7b97\u7b26\u5728\u8fde\u63a5\u5c11\u91cf\u5b57\u7b26\u4e32\u65f6\u662f\u9ad8\u6548\u7684\uff0c\u4f46\u5728\u9700\u8981\u8fdb\u884c\u5927\u91cf\u8fde\u63a5\u64cd\u4f5c\u65f6\uff0c\u5efa\u8bae\u4f7f\u7528 join<\/code> \u65b9\u6cd5\uff0c\u56e0\u4e3a +<\/code> \u8fd0\u7b97\u7b26\u4f1a\u521b\u5efa\u8bb8\u591a\u4e34\u65f6\u5b57\u7b26\u4e32\uff0c\u4ece\u800c\u5f71\u54cd\u6027\u80fd\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff08f-strings\uff09<\/h2>\n<\/p>\n
\u57fa\u672c\u4f7f\u7528<\/h3>\n<\/p>\n
f-strings \u662f Python 3.6 \u5f15\u5165\u7684\u4e00\u79cd\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6cd5\uff0c\u901a\u8fc7\u5728\u5b57\u7b26\u4e32\u524d\u6dfb\u52a0 f<\/code>\uff0c\u5e76\u5728 {}<\/code> \u5185\u5d4c\u5165\u8868\u8fbe\u5f0f\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5b57\u7b26\u4e32\u7684\u52a8\u6001\u751f\u6210\u3002<\/p>\n<\/p>\n
original_string = "world"<\/p>\n
new_string = f"Hello {original_string}"<\/p>\n
print(new_string)  # \u8f93\u51fa\uff1aHello world<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8868\u8fbe\u5f0f\u5d4c\u5165<\/h3>\n<\/p>\n
f-strings \u7684\u5f3a\u5927\u4e4b\u5904\u5728\u4e8e\u53ef\u4ee5\u5d4c\u5165\u4efb\u610f\u8868\u8fbe\u5f0f\uff0c\u5305\u62ec\u51fd\u6570\u8c03\u7528\u3001\u6570\u5b66\u8fd0\u7b97\u7b49\u3002<\/p>\n<\/p>\n
name = "world"<\/p>\n
new_string = f"Hello {name.upper()}"<\/p>\n
print(new_string)  # \u8f93\u51fa\uff1aHello WORLD<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u591a\u884c\u5b57\u7b26\u4e32<\/h3>\n<\/p>\n
f-strings \u4e5f\u652f\u6301\u591a\u884c\u5b57\u7b26\u4e32\uff0c\u4f7f\u7528\u4e09\u91cd\u5f15\u53f7\u53ef\u4ee5\u5b9e\u73b0\uff1a<\/p>\n<\/p>\n
name = "world"<\/p>\n
new_string = f"""Hello,<\/p>\n
{name}!<\/p>\n
"""<\/p>\n
print(new_string)<\/p>\n
\u8f93\u51fa\uff1a<\/strong><\/h2>\n
Hello,<\/strong><\/h2>\n
world!<\/strong><\/h2>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528 join \u65b9\u6cd5<\/h2>\n<\/p>\n
\u57fa\u672c\u4f7f\u7528<\/h3>\n<\/p>\n
join<\/code> \u65b9\u6cd5\u901a\u8fc7\u5c06\u4e00\u4e2a\u5b57\u7b26\u6216\u5b57\u7b26\u4e32\u63d2\u5165\u5230\u5b57\u7b26\u4e32\u7684\u6bcf\u4e2a\u5143\u7d20\u4e4b\u95f4\uff0c\u751f\u6210\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u3002\u867d\u7136\u901a\u5e38\u7528\u6765\u8fde\u63a5\u5217\u8868\u4e2d\u7684\u5143\u7d20\uff0c\u4f46\u4e5f\u53ef\u4ee5\u7528\u6765\u5728\u5b57\u7b26\u4e32\u524d\u9762\u6dfb\u52a0\u5b57\u7b26\u3002<\/p>\n<\/p>\n
original_string = "world"<\/p>\n
new_string = "".join(["Hello ", original_string])<\/p>\n
print(new_string)  # \u8f93\u51fa\uff1aHello world<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fde\u63a5\u5217\u8868\u4e2d\u7684\u5b57\u7b26\u4e32<\/h3>\n<\/p>\n
\u5728\u9700\u8981\u5c06\u591a\u4e2a\u5b57\u7b26\u4e32\u7ec4\u6210\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u65f6\uff0cjoin<\/code> \u65b9\u6cd5\u975e\u5e38\u6709\u7528\uff1a<\/p>\n<\/p>\n
words = ["Hello", "world", "from", "Python"]<\/p>\n
new_string = " ".join(words)<\/p>\n
print(new_string)  # \u8f93\u51fa\uff1aHello world from Python<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u6027\u80fd\u4f18\u52bf<\/h3>\n<\/p>\n
\u4e0e +<\/code> \u8fd0\u7b97\u7b26\u76f8\u6bd4\uff0cjoin<\/code> \u65b9\u6cd5\u5728\u9700\u8981\u8fdb\u884c\u5927\u91cf\u5b57\u7b26\u4e32\u8fde\u63a5\u64cd\u4f5c\u65f6\u6027\u80fd\u66f4\u597d\uff0c\u56e0\u4e3a\u5b83\u907f\u514d\u4e86\u521b\u5efa\u5927\u91cf\u4e34\u65f6\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n
import time<\/p>\n
\u4f7f\u7528 + \u8fd0\u7b97\u7b26<\/strong><\/h2>\n
start_time = time.time()<\/p>\n
result = ""<\/p>\n
for i in range(10000):<\/p>\n
    result += "Hello "<\/p>\n
print(f"Using + took {time.time() - start_time} seconds")<\/p>\n
\u4f7f\u7528 join \u65b9\u6cd5<\/strong><\/h2>\n
start_time = time.time()<\/p>\n
result = "".join(["Hello " for _ in range(10000)])<\/p>\n
print(f"Using join took {time.time() - start_time} seconds")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u5176\u4ed6\u65b9\u6cd5<\/h2>\n<\/p>\n
\u4f7f\u7528 format \u65b9\u6cd5<\/h3>\n<\/p>\n
\u867d\u7136 f-strings \u662f\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u7684\u63a8\u8350\u65b9\u6cd5\uff0c\u4f46\u5728 Python 3.6 \u4e4b\u524d\u7684\u7248\u672c\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 format<\/code> \u65b9\u6cd5\u3002<\/p>\n<\/p>\n
original_string = "world"<\/p>\n
new_string = "Hello {}".format(original_string)<\/p>\n
print(new_string)  # \u8f93\u51fa\uff1aHello world<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528 % \u64cd\u4f5c\u7b26<\/h3>\n<\/p>\n
\u5728 Python 3.0 \u4e4b\u524d\uff0c%<\/code> \u64cd\u4f5c\u7b26\u662f\u6700\u5e38\u7528\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6cd5\u3002\u5c3d\u7ba1\u5b83\u73b0\u5728\u5df2\u7ecf\u4e0d\u63a8\u8350\u4f7f\u7528\uff0c\u4f46\u5728\u67d0\u4e9b\u8001\u4ee3\u7801\u4e2d\u4ecd\u7136\u80fd\u770b\u5230\u3002<\/p>\n<\/p>\n
original_string = "world"<\/p>\n
new_string = "Hello %s" % original_string<\/p>\n
print(new_string)  # \u8f93\u51fa\uff1aHello world<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f<\/h3>\n<\/p>\n
\u5728\u67d0\u4e9b\u590d\u6742\u7684\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u5b9e\u73b0\u5b57\u7b26\u4e32\u7684\u524d\u7f6e\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
import re<\/p>\n
original_string = "world"<\/p>\n
new_string = re.sub(r'^', 'Hello ', original_string)<\/p>\n
print(new_string)  # \u8f93\u51fa\uff1aHello world<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528\u5207\u7247<\/h3>\n<\/p>\n
\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u5207\u7247\u64cd\u4f5c\u6765\u5b9e\u73b0\u5b57\u7b26\u4e32\u524d\u7f6e\u3002<\/p>\n<\/p>\n
original_string = "world"<\/p>\n
new_string = "Hello "[:6] + original_string<\/p>\n
print(new_string)  # \u8f93\u51fa\uff1aHello world<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528\u5217\u8868<\/h3>\n<\/p>\n
\u901a\u8fc7\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5217\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528\u5217\u8868\u64cd\u4f5c\u6765\u5b9e\u73b0\u5b57\u7b26\u4e32\u524d\u7f6e\u3002<\/p>\n<\/p>\n
original_string = list("world")<\/p>\n
original_string.insert(0, "Hello ")<\/p>\n
new_string = "".join(original_string)<\/p>\n
print(new_string)  # \u8f93\u51fa\uff1aHello world<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u81ea\u5b9a\u4e49\u51fd\u6570<\/h3>\n<\/p>\n
\u5982\u679c\u9700\u8981\u7ecf\u5e38\u5728\u5b57\u7b26\u4e32\u524d\u9762\u6dfb\u52a0\u5b57\u7b26\uff0c\u53ef\u4ee5\u7f16\u5199\u4e00\u4e2a\u81ea\u5b9a\u4e49\u51fd\u6570\u3002<\/p>\n<\/p>\n
def add_prefix(prefix, original_string):<\/p>\n
    return prefix + original_string<\/p>\n
original_string = "world"<\/p>\n
new_string = add_prefix("Hello ", original_string)<\/p>\n
print(new_string)  # \u8f93\u51fa\uff1aHello world<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528\u5b57\u8282\u64cd\u4f5c<\/h3>\n<\/p>\n
\u5728\u5904\u7406\u5b57\u8282\u4e32\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u7c7b\u4f3c\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
original_bytes = b"world"<\/p>\n
new_bytes = b"Hello " + original_bytes<\/p>\n
print(new_bytes)  # \u8f93\u51fa\uff1ab'Hello world'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528 deque<\/h3>\n<\/p>\n
\u5728\u9700\u8981\u9ad8\u6548\u5730\u5728\u5b57\u7b26\u4e32\u524d\u9762\u6dfb\u52a0\u5b57\u7b26\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528 collections.deque<\/code>\uff0c\u5b83\u63d0\u4f9b\u4e86\u9ad8\u6548\u7684\u63d2\u5165\u548c\u5220\u9664\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
from collections import deque<\/p>\n
original_string = deque("world")<\/p>\n
original_string.appendleft("Hello ")<\/p>\n
new_string = "".join(original_string)<\/p>\n
print(new_string)  # \u8f93\u51fa\uff1aHello world<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u603b\u4e4b\uff0c\u5728 Python \u4e2d\u6709\u591a\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5728\u5b57\u7b26\u4e32\u524d\u9762\u6dfb\u52a0\u5b57\u7b26\u3002\u6839\u636e\u5177\u4f53\u7684\u9700\u6c42\u548c\u4f7f\u7528\u573a\u666f\uff0c\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u53ef\u4ee5\u5e2e\u52a9\u4f60\u66f4\u9ad8\u6548\u5730\u5b9e\u73b0\u76ee\u6807\u3002\u65e0\u8bba\u662f\u7b80\u5355\u7684\u5b57\u7b26\u4e32\u8fde\u63a5\uff0c\u8fd8\u662f\u9ad8\u6548\u7684 join<\/code> \u65b9\u6cd5\uff0c\u6216\u8005\u662f\u5f3a\u5927\u7684 f-strings\uff0c\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u72ec\u7279\u7684\u4f18\u52bf\u3002\u5e0c\u671b\u901a\u8fc7\u672c\u6587\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u80fd\u591f\u5e2e\u52a9\u4f60\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u7075\u6d3b\u8fd0\u7528\u8fd9\u4e9b\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u4e3a\u5b57\u7b26\u4e32\u6dfb\u52a0\u524d\u7f00\u5b57\u7b26\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u7684\u62fc\u63a5\u64cd\u4f5c\u6765\u4e3a\u5b57\u7b26\u4e32\u6dfb\u52a0\u524d\u7f00\u5b57\u7b26\u3002\u4f8b\u5982\uff0c\u5047\u8bbe\u60a8\u6709\u4e00\u4e2a\u5b57\u7b26\u4e32original_string<\/code>\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u4e3a\u5176\u6dfb\u52a0\u524d\u7f00\uff1a  <\/p>\n
prefix = "\u524d\u7f00_"\nnew_string = prefix + original_string\n<\/code><\/pre>\n
\u8fd9\u6837\u5c31\u53ef\u4ee5\u5728original_string<\/code>\u524d\u9762\u6dfb\u52a0\u6240\u9700\u7684\u5b57\u7b26\u3002<\/p>\n
\u5728Python\u4e2d\u6709\u6ca1\u6709\u4e13\u95e8\u7684\u51fd\u6570\u7528\u4e8e\u5728\u5b57\u7b26\u4e32\u524d\u9762\u52a0\u5b57\u7b26\uff1f<\/strong>
Python\u7684\u5b57\u7b26\u4e32\u65b9\u6cd5\u4e2d\u5e76\u6ca1\u6709\u4e13\u95e8\u7528\u4e8e\u6dfb\u52a0\u524d\u7f00\u7684\u51fd\u6570\uff0c\u4f46\u53ef\u4ee5\u4f7f\u7528str.format()<\/code>\u6216f-string\u6765\u5b9e\u73b0\u3002\u4f8b\u5982\uff1a  <\/p>\n
# \u4f7f\u7528str.format()\nnew_string = "{}{}".format(prefix, original_string)\n\n# \u4f7f\u7528f-string\nnew_string = f"{prefix}{original_string}"\n<\/code><\/pre>\n
\u8fd9\u4e24\u79cd\u65b9\u6cd5\u540c\u6837\u53ef\u4ee5\u65b9\u4fbf\u5730\u4e3a\u5b57\u7b26\u4e32\u6dfb\u52a0\u524d\u7f00\u5b57\u7b26\u3002<\/p>\n
\u5728\u5b57\u7b26\u4e32\u524d\u6dfb\u52a0\u5b57\u7b26\u65f6\uff0c\u662f\u5426\u53ef\u4ee5\u4f7f\u7528\u6761\u4ef6\u5224\u65ad\uff1f<\/strong>
\u5f53\u7136\u53ef\u4ee5\u3002\u53ef\u4ee5\u6839\u636e\u6761\u4ef6\u6765\u51b3\u5b9a\u662f\u5426\u6dfb\u52a0\u524d\u7f00\u5b57\u7b26\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u68c0\u67e5\u5b57\u7b26\u4e32\u662f\u5426\u4e3a\u7a7a\uff0c\u5982\u679c\u4e3a\u7a7a\uff0c\u5219\u4e0d\u6dfb\u52a0\u524d\u7f00\uff1a  <\/p>\n
if original_string:\n    new_string = prefix + original_string\nelse:\n    new_string = original_string\n<\/code><\/pre>\n
\u8fd9\u6837\uff0c\u53ea\u6709\u5728\u5b57\u7b26\u4e32\u4e0d\u4e3a\u7a7a\u7684\u60c5\u51b5\u4e0b\u624d\u4f1a\u6dfb\u52a0\u524d\u7f00\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728 Python \u4e2d\uff0c\u8981\u5728\u5b57\u7b26\u4e32\u524d\u9762\u52a0\u5b57\u7b26\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u8fde\u63a5\uff08concatenation\uff09\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff08f […]","protected":false},"author":3,"featured_media":1118276,"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\/1118265"}],"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=1118265"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1118265\/revisions"}],"predecessor-version":[{"id":1118278,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1118265\/revisions\/1118278"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1118276"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1118265"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1118265"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1118265"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}