{"id":1026234,"date":"2024-12-31T10:40:53","date_gmt":"2024-12-31T02:40:53","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1026234.html"},"modified":"2024-12-31T10:40:56","modified_gmt":"2024-12-31T02:40:56","slug":"python%e5%a6%82%e4%bd%95%e5%b0%86%e6%95%b0%e5%ad%97%e6%94%be%e5%85%a5%e5%88%97%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1026234.html","title":{"rendered":"python\u5982\u4f55\u5c06\u6570\u5b57\u653e\u5165\u5217\u8868"},"content":{"rendered":"

\"python\u5982\u4f55\u5c06\u6570\u5b57\u653e\u5165\u5217\u8868\"<\/p>\n

\u5728Python\u4e2d\uff0c\u5c06\u6570\u5b57\u653e\u5165\u5217\u8868\u7684\u65b9\u6cd5\u6709\uff1a\u4f7f\u7528append()\u65b9\u6cd5\u3001\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u3001\u4f7f\u7528\u52a0\u53f7\u8fd0\u7b97\u7b26\u3001\u4f7f\u7528extend()\u65b9\u6cd5\u3002<\/strong> \u5176\u4e2d\uff0c\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528append()<\/code>\u65b9\u6cd5\u3002append()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u5c06\u5355\u4e2a\u5143\u7d20\u6dfb\u52a0\u5230\u5217\u8868\u7684\u672b\u5c3e\uff0c\u7b80\u5355\u6613\u7528\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u4ecb\u7ecd\u6bcf\u79cd\u65b9\u6cd5\u7684\u5177\u4f53\u4f7f\u7528\u65b9\u5f0f\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528append()\u65b9\u6cd5<\/h3>\n<\/p>\n

append()<\/code>\u65b9\u6cd5\u662f\u6700\u5e38\u7528\u7684\u5c06\u6570\u5b57\u653e\u5165\u5217\u8868\u7684\u65b9\u6cd5\u3002\u5b83\u4f1a\u5c06\u4e00\u4e2a\u5143\u7d20\u6dfb\u52a0\u5230\u5217\u8868\u7684\u672b\u5c3e\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n

# \u521b\u5efa\u4e00\u4e2a\u7a7a\u5217\u8868<\/p>\n
numbers = []<\/p>\n
\u4f7f\u7528append()\u65b9\u6cd5\u5c06\u6570\u5b57\u6dfb\u52a0\u5230\u5217\u8868\u4e2d<\/strong><\/h2>\n
numbers.append(1)<\/p>\n
numbers.append(2)<\/p>\n
numbers.append(3)<\/p>\n
print(numbers)  # \u8f93\u51fa: [1, 2, 3]<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8be6\u89e3<\/strong>\uff1a<\/p>\n
append()<\/code>\u65b9\u6cd5\u662f\u5217\u8868\u5bf9\u8c61\u7684\u4e00\u4e2a\u5185\u7f6e\u65b9\u6cd5\uff0c\u5b83\u4f1a\u5c06\u4f20\u5165\u7684\u5143\u7d20\u6dfb\u52a0\u5230\u5217\u8868\u7684\u672b\u5c3e\u3002\u7531\u4e8e\u5176\u7b80\u5355\u6027\u548c\u9ad8\u6548\u6027\uff0c\u8fd9\u662f\u6700\u5e38\u89c1\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f<\/h3>\n<\/p>\n
\u5217\u8868\u63a8\u5bfc\u5f0f\u662f\u4e00\u79cd\u7b80\u6d01\u7684\u8bed\u6cd5\u7ed3\u6784\uff0c\u53ef\u4ee5\u5feb\u901f\u521b\u5efa\u5217\u8868\u3002\u901a\u8fc7\u5217\u8868\u63a8\u5bfc\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u7b26\u5408\u7279\u5b9a\u6761\u4ef6\u7684\u6570\u5b57\u653e\u5165\u5217\u8868\u4e2d\u3002<\/p>\n<\/p>\n
# \u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u5c06\u6570\u5b57\u653e\u5165\u5217\u8868<\/p>\n
numbers = [x for x in range(1, 4)]<\/p>\n
print(numbers)  # \u8f93\u51fa: [1, 2, 3]<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8be6\u89e3<\/strong>\uff1a<\/p>\n
\u5217\u8868\u63a8\u5bfc\u5f0f\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u6d01\u7684\u65b9\u5f0f\u6765\u751f\u6210\u5217\u8868\u3002\u5b83\u7531\u4e00\u4e2a\u8868\u8fbe\u5f0f\u548c\u4e00\u4e2afor\u5faa\u73af\u7ec4\u6210\uff0c\u53ef\u4ee5\u9009\u62e9\u6027\u5730\u6dfb\u52a0\u6761\u4ef6\u8bed\u53e5\u3002\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528range()<\/code>\u51fd\u6570\u751f\u6210\u4e00\u4e2a\u8303\u56f4\u5185\u7684\u6570\u5b57\uff0c\u5e76\u5c06\u5176\u653e\u5165\u5217\u8868\u4e2d\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528\u52a0\u53f7\u8fd0\u7b97\u7b26<\/h3>\n<\/p>\n
\u52a0\u53f7\u8fd0\u7b97\u7b26\u53ef\u4ee5\u7528\u4e8e\u5c06\u4e24\u4e2a\u5217\u8868\u8fde\u63a5\u5728\u4e00\u8d77\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5c06\u6570\u5b57\u653e\u5165\u4e00\u4e2a\u5217\u8868\uff0c\u7136\u540e\u4f7f\u7528\u52a0\u53f7\u8fd0\u7b97\u7b26\u5c06\u5176\u6dfb\u52a0\u5230\u76ee\u6807\u5217\u8868\u4e2d\u3002<\/p>\n<\/p>\n
# \u521b\u5efa\u4e00\u4e2a\u7a7a\u5217\u8868<\/p>\n
numbers = []<\/p>\n
\u4f7f\u7528\u52a0\u53f7\u8fd0\u7b97\u7b26\u5c06\u6570\u5b57\u6dfb\u52a0\u5230\u5217\u8868\u4e2d<\/strong><\/h2>\n
numbers = numbers + [1]<\/p>\n
numbers = numbers + [2]<\/p>\n
numbers = numbers + [3]<\/p>\n
print(numbers)  # \u8f93\u51fa: [1, 2, 3]<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8be6\u89e3<\/strong>\uff1a<\/p>\n
\u52a0\u53f7\u8fd0\u7b97\u7b26\u7528\u4e8e\u8fde\u63a5\u4e24\u4e2a\u5217\u8868\u3002\u867d\u7136\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u5982append()<\/code>\u65b9\u6cd5\u9ad8\u6548\uff0c\u4f46\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u4e0d\u540c\u7684\u601d\u8def\uff0c\u7279\u522b\u662f\u5728\u9700\u8981\u4e00\u6b21\u6027\u8fde\u63a5\u591a\u4e2a\u5217\u8868\u65f6\u3002<\/p>\n<\/p>\n
\u56db\u3001\u4f7f\u7528extend()\u65b9\u6cd5<\/h3>\n<\/p>\n
extend()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u5c06\u4e00\u4e2a\u53ef\u8fed\u4ee3\u5bf9\u8c61\uff08\u5982\u5217\u8868\u3001\u5143\u7ec4\u7b49\uff09\u7684\u6240\u6709\u5143\u7d20\u6dfb\u52a0\u5230\u5217\u8868\u7684\u672b\u5c3e\u3002\u4e0eappend()<\/code>\u65b9\u6cd5\u4e0d\u540c\u7684\u662f\uff0cextend()<\/code>\u65b9\u6cd5\u4e00\u6b21\u6027\u6dfb\u52a0\u591a\u4e2a\u5143\u7d20\u3002<\/p>\n<\/p>\n
# \u521b\u5efa\u4e00\u4e2a\u7a7a\u5217\u8868<\/p>\n
numbers = []<\/p>\n
\u4f7f\u7528extend()\u65b9\u6cd5\u5c06\u591a\u4e2a\u6570\u5b57\u6dfb\u52a0\u5230\u5217\u8868\u4e2d<\/strong><\/h2>\n
numbers.extend([1, 2, 3])<\/p>\n
print(numbers)  # \u8f93\u51fa: [1, 2, 3]<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8be6\u89e3<\/strong>\uff1a<\/p>\n
extend()<\/code>\u65b9\u6cd5\u7528\u4e8e\u5c06\u4e00\u4e2a\u53ef\u8fed\u4ee3\u5bf9\u8c61\u7684\u6240\u6709\u5143\u7d20\u6dfb\u52a0\u5230\u5217\u8868\u672b\u5c3e\u3002\u4e0eappend()<\/code>\u65b9\u6cd5\u76f8\u6bd4\uff0cextend()<\/code>\u65b9\u6cd5\u66f4\u9002\u5408\u4e00\u6b21\u6027\u6dfb\u52a0\u591a\u4e2a\u5143\u7d20\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u4f7f\u7528insert()\u65b9\u6cd5<\/h3>\n<\/p>\n
insert()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u5c06\u5143\u7d20\u63d2\u5165\u5230\u5217\u8868\u7684\u6307\u5b9a\u4f4d\u7f6e\u3002\u5c3d\u7ba1\u5b83\u4e0d\u5e38\u7528\u4e8e\u5c06\u6570\u5b57\u653e\u5165\u5217\u8868\u7684\u672b\u5c3e\uff0c\u4f46\u5728\u9700\u8981\u5c06\u6570\u5b57\u63d2\u5165\u7279\u5b9a\u4f4d\u7f6e\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n
# \u521b\u5efa\u4e00\u4e2a\u7a7a\u5217\u8868<\/p>\n
numbers = []<\/p>\n
\u4f7f\u7528insert()\u65b9\u6cd5\u5c06\u6570\u5b57\u63d2\u5165\u5230\u6307\u5b9a\u4f4d\u7f6e<\/strong><\/h2>\n
numbers.insert(0, 1)<\/p>\n
numbers.insert(1, 2)<\/p>\n
numbers.insert(2, 3)<\/p>\n
print(numbers)  # \u8f93\u51fa: [1, 2, 3]<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8be6\u89e3<\/strong>\uff1a<\/p>\n
insert()<\/code>\u65b9\u6cd5\u5141\u8bb8\u6211\u4eec\u5c06\u5143\u7d20\u63d2\u5165\u5230\u5217\u8868\u7684\u4efb\u4f55\u4f4d\u7f6e\u3002\u5b83\u9700\u8981\u4e24\u4e2a\u53c2\u6570\uff1a\u63d2\u5165\u4f4d\u7f6e\u7684\u7d22\u5f15\u548c\u8981\u63d2\u5165\u7684\u5143\u7d20\u3002\u8fd9\u5728\u9700\u8981\u5c06\u5143\u7d20\u63d2\u5165\u7279\u5b9a\u4f4d\u7f6e\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n
\u516d\u3001\u4f7f\u7528\u5217\u8868\u7684\u52a0\u6cd5\u8fd0\u7b97<\/h3>\n<\/p>\n
\u5217\u8868\u7684\u52a0\u6cd5\u8fd0\u7b97\u53ef\u4ee5\u5c06\u4e24\u4e2a\u5217\u8868\u5408\u5e76\u6210\u4e00\u4e2a\u65b0\u5217\u8868\u3002\u8fd9\u5728\u9700\u8981\u5c06\u591a\u4e2a\u6570\u5b57\u5217\u8868\u5408\u5e76\u65f6\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n<\/p>\n
# \u521b\u5efa\u4e24\u4e2a\u5217\u8868<\/p>\n
numbers1 = [1, 2]<\/p>\n
numbers2 = [3, 4]<\/p>\n
\u4f7f\u7528\u52a0\u6cd5\u8fd0\u7b97\u5c06\u4e24\u4e2a\u5217\u8868\u5408\u5e76<\/strong><\/h2>\n
numbers = numbers1 + numbers2<\/p>\n
print(numbers)  # \u8f93\u51fa: [1, 2, 3, 4]<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8be6\u89e3<\/strong>\uff1a<\/p>\n
\u5217\u8868\u7684\u52a0\u6cd5\u8fd0\u7b97\u5c06\u4e24\u4e2a\u5217\u8868\u8fde\u63a5\u5728\u4e00\u8d77\uff0c\u751f\u6210\u4e00\u4e2a\u65b0\u7684\u5217\u8868\u3002\u5b83\u4e0d\u6539\u53d8\u539f\u59cb\u5217\u8868\uff0c\u800c\u662f\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5217\u8868\u3002<\/p>\n<\/p>\n
\u4e03\u3001\u4f7f\u7528\u5faa\u73af\u5c06\u6570\u5b57\u653e\u5165\u5217\u8868<\/h3>\n<\/p>\n
\u901a\u8fc7\u5faa\u73af\u8bed\u53e5\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u4e00\u7cfb\u5217\u6570\u5b57\u653e\u5165\u5217\u8868\u4e2d\u3002\u8fd9\u5728\u9700\u8981\u5904\u7406\u5927\u91cf\u6570\u636e\u65f6\u975e\u5e38\u5b9e\u7528\u3002<\/p>\n<\/p>\n
# \u521b\u5efa\u4e00\u4e2a\u7a7a\u5217\u8868<\/p>\n
numbers = []<\/p>\n
\u4f7f\u7528\u5faa\u73af\u5c06\u6570\u5b57\u653e\u5165\u5217\u8868\u4e2d<\/strong><\/h2>\n
for i in range(1, 4):<\/p>\n
    numbers.append(i)<\/p>\n
print(numbers)  # \u8f93\u51fa: [1, 2, 3]<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8be6\u89e3<\/strong>\uff1a<\/p>\n
\u5faa\u73af\u8bed\u53e5\u63d0\u4f9b\u4e86\u4e00\u79cd\u7075\u6d3b\u7684\u65b9\u6cd5\u6765\u5c06\u6570\u5b57\u653e\u5165\u5217\u8868\u4e2d\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528for<\/code>\u5faa\u73af\u6216while<\/code>\u5faa\u73af\uff0c\u6839\u636e\u5177\u4f53\u9700\u6c42\u8fdb\u884c\u9009\u62e9\u3002<\/p>\n<\/p>\n
\u516b\u3001\u4f7f\u7528numpy\u5e93\u5c06\u6570\u5b57\u653e\u5165\u6570\u7ec4<\/h3>\n<\/p>\n
\u5982\u679c\u6211\u4eec\u9700\u8981\u5904\u7406\u5927\u91cf\u6570\u5b57\u6570\u636e\uff0cnumpy<\/code>\u5e93\u63d0\u4f9b\u4e86\u4e00\u79cd\u9ad8\u6548\u7684\u65b9\u6cd5\u3002numpy<\/code>\u6570\u7ec4\u6bd4Python\u5217\u8868\u66f4\u9ad8\u6548\uff0c\u7279\u522b\u662f\u5728\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u65f6\u3002<\/p>\n<\/p>\n
import numpy as np<\/p>\n
\u4f7f\u7528numpy\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4<\/strong><\/h2>\n
numbers = np.array([1, 2, 3])<\/p>\n
print(numbers)  # \u8f93\u51fa: [1 2 3]<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8be6\u89e3<\/strong>\uff1a<\/p>\n
numpy<\/code>\u5e93\u662f\u7528\u4e8e\u79d1\u5b66\u8ba1\u7b97\u7684\u5f3a\u5927\u5de5\u5177\u3002\u5b83\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u521b\u5efa\u548c\u64cd\u4f5c\u6570\u7ec4\u3002\u867d\u7136numpy<\/code>\u6570\u7ec4\u4e0ePython\u5217\u8868\u4e0d\u5b8c\u5168\u76f8\u540c\uff0c\u4f46\u5728\u5904\u7406\u5927\u91cf\u6570\u636e\u65f6\uff0c\u5b83\u4eec\u7684\u9ad8\u6548\u6027\u548c\u529f\u80fd\u6027\u4f7f\u5176\u6210\u4e3a\u4e00\u4e2a\u6709\u4ef7\u503c\u7684\u9009\u62e9\u3002<\/p>\n<\/p>\n
\u4e5d\u3001\u4f7f\u7528collections.deque\u5c06\u6570\u5b57\u653e\u5165\u53cc\u7aef\u961f\u5217<\/h3>\n<\/p>\n
collections<\/code>\u6a21\u5757\u4e2d\u7684deque<\/code>\uff08\u53cc\u7aef\u961f\u5217\uff09\u662f\u4e00\u79cd\u9ad8\u6548\u7684\u53cc\u5411\u961f\u5217\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5b83\u5c06\u6570\u5b57\u653e\u5165\u961f\u5217\u4e2d\uff0c\u5e76\u5728\u9700\u8981\u65f6\u9ad8\u6548\u5730\u8fdb\u884c\u63d2\u5165\u548c\u5220\u9664\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
from collections import deque<\/p>\n
\u521b\u5efa\u4e00\u4e2a\u7a7a\u53cc\u7aef\u961f\u5217<\/strong><\/h2>\n
numbers = deque()<\/p>\n
\u4f7f\u7528append()\u65b9\u6cd5\u5c06\u6570\u5b57\u6dfb\u52a0\u5230\u53cc\u7aef\u961f\u5217\u4e2d<\/strong><\/h2>\n
numbers.append(1)<\/p>\n
numbers.append(2)<\/p>\n
numbers.append(3)<\/p>\n
print(numbers)  # \u8f93\u51fa: deque([1, 2, 3])<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8be6\u89e3<\/strong>\uff1a<\/p>\n
deque<\/code>\u63d0\u4f9b\u4e86\u7c7b\u4f3c\u4e8e\u5217\u8868\u7684\u529f\u80fd\uff0c\u4f46\u5728\u9700\u8981\u9891\u7e41\u63d2\u5165\u548c\u5220\u9664\u64cd\u4f5c\u65f6\uff0c\u5176\u6027\u80fd\u66f4\u9ad8\u3002\u5b83\u652f\u6301\u5728\u4e24\u7aef\u8fdb\u884c\u9ad8\u6548\u7684\u63d2\u5165\u548c\u5220\u9664\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
\u5341\u3001\u4f7f\u7528itertools.chAI<\/a>n\u5c06\u591a\u4e2a\u5217\u8868\u5408\u5e76\u6210\u4e00\u4e2a<\/h3>\n<\/p>\n
itertools<\/code>\u6a21\u5757\u4e2d\u7684chain<\/code>\u51fd\u6570\u53ef\u4ee5\u5c06\u591a\u4e2a\u53ef\u8fed\u4ee3\u5bf9\u8c61\u94fe\u63a5\u5728\u4e00\u8d77\uff0c\u751f\u6210\u4e00\u4e2a\u65b0\u7684\u53ef\u8fed\u4ee3\u5bf9\u8c61\u3002\u8fd9\u5728\u9700\u8981\u5408\u5e76\u591a\u4e2a\u5217\u8868\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n
from itertools import chain<\/p>\n
\u521b\u5efa\u591a\u4e2a\u5217\u8868<\/strong><\/h2>\n
numbers1 = [1, 2]<\/p>\n
numbers2 = [3, 4]<\/p>\n
\u4f7f\u7528itertools.chain\u5c06\u591a\u4e2a\u5217\u8868\u5408\u5e76\u6210\u4e00\u4e2a<\/strong><\/h2>\n
numbers = list(chain(numbers1, numbers2))<\/p>\n
print(numbers)  # \u8f93\u51fa: [1, 2, 3, 4]<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8be6\u89e3<\/strong>\uff1a<\/p>\n
itertools.chain<\/code>\u51fd\u6570\u63d0\u4f9b\u4e86\u4e00\u79cd\u9ad8\u6548\u7684\u65b9\u6cd5\u6765\u5c06\u591a\u4e2a\u53ef\u8fed\u4ee3\u5bf9\u8c61\u94fe\u63a5\u5728\u4e00\u8d77\u3002\u4e0e\u52a0\u6cd5\u8fd0\u7b97\u4e0d\u540c\uff0cchain<\/code>\u51fd\u6570\u4e0d\u4f1a\u521b\u5efa\u65b0\u7684\u5217\u8868\uff0c\u800c\u662f\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u53ef\u8fed\u4ee3\u5bf9\u8c61\u3002<\/p>\n<\/p>\n
\u5341\u4e00\u3001\u4f7f\u7528\u5217\u8868\u7684\u4e58\u6cd5\u8fd0\u7b97<\/h3>\n<\/p>\n
\u5217\u8868\u7684\u4e58\u6cd5\u8fd0\u7b97\u53ef\u4ee5\u5c06\u4e00\u4e2a\u5217\u8868\u91cd\u590d\u591a\u4e2a\u526f\u672c\u3002\u8fd9\u5728\u9700\u8981\u751f\u6210\u91cd\u590d\u5143\u7d20\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n
# \u521b\u5efa\u4e00\u4e2a\u5305\u542b\u5355\u4e2a\u5143\u7d20\u7684\u5217\u8868<\/p>\n
numbers = [1]<\/p>\n
\u4f7f\u7528\u4e58\u6cd5\u8fd0\u7b97\u5c06\u5217\u8868\u91cd\u590d\u4e09\u6b21<\/strong><\/h2>\n
numbers = numbers * 3<\/p>\n
print(numbers)  # \u8f93\u51fa: [1, 1, 1]<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8be6\u89e3<\/strong>\uff1a<\/p>\n
\u5217\u8868\u7684\u4e58\u6cd5\u8fd0\u7b97\u5c06\u4e00\u4e2a\u5217\u8868\u91cd\u590d\u591a\u6b21\uff0c\u751f\u6210\u4e00\u4e2a\u5305\u542b\u591a\u4e2a\u526f\u672c\u7684\u65b0\u5217\u8868\u3002\u8fd9\u5728\u9700\u8981\u751f\u6210\u91cd\u590d\u5143\u7d20\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n
\u5341\u4e8c\u3001\u4f7f\u7528\u5217\u8868\u7684\u5207\u7247\u64cd\u4f5c<\/h3>\n<\/p>\n
\u5217\u8868\u7684\u5207\u7247\u64cd\u4f5c\u53ef\u4ee5\u5c06\u4e00\u4e2a\u5217\u8868\u7684\u5b50\u96c6\u653e\u5165\u53e6\u4e00\u4e2a\u5217\u8868\u4e2d\u3002\u8fd9\u5728\u9700\u8981\u622a\u53d6\u90e8\u5206\u5143\u7d20\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n
# \u521b\u5efa\u4e00\u4e2a\u5305\u542b\u591a\u4e2a\u5143\u7d20\u7684\u5217\u8868<\/p>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
\u4f7f\u7528\u5207\u7247\u64cd\u4f5c\u5c06\u90e8\u5206\u5143\u7d20\u653e\u5165\u53e6\u4e00\u4e2a\u5217\u8868<\/strong><\/h2>\n
subset = numbers[1:4]<\/p>\n
print(subset)  # \u8f93\u51fa: [2, 3, 4]<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8be6\u89e3<\/strong>\uff1a<\/p>\n
\u5217\u8868\u7684\u5207\u7247\u64cd\u4f5c\u63d0\u4f9b\u4e86\u4e00\u79cd\u7075\u6d3b\u7684\u65b9\u6cd5\u6765\u622a\u53d6\u90e8\u5206\u5143\u7d20\u3002\u901a\u8fc7\u6307\u5b9a\u8d77\u59cb\u548c\u7ed3\u675f\u7d22\u5f15\uff0c\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u5730\u751f\u6210\u4e00\u4e2a\u5305\u542b\u7279\u5b9a\u5143\u7d20\u7684\u65b0\u5217\u8868\u3002<\/p>\n<\/p>\n
\u5341\u4e09\u3001\u4f7f\u7528filter()\u51fd\u6570\u7b5b\u9009\u6570\u5b57<\/h3>\n<\/p>\n
filter()<\/code>\u51fd\u6570\u53ef\u4ee5\u6839\u636e\u6307\u5b9a\u6761\u4ef6\u7b5b\u9009\u6570\u5b57\u5e76\u5c06\u5176\u653e\u5165\u5217\u8868\u4e2d\u3002\u5b83\u8fd4\u56de\u4e00\u4e2a\u8fed\u4ee3\u5668\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528list()<\/code>\u51fd\u6570\u5c06\u5176\u8f6c\u6362\u4e3a\u5217\u8868\u3002<\/p>\n<\/p>\n
# \u521b\u5efa\u4e00\u4e2a\u5305\u542b\u591a\u4e2a\u5143\u7d20\u7684\u5217\u8868<\/p>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
\u4f7f\u7528filter()\u51fd\u6570\u7b5b\u9009\u5076\u6570<\/strong><\/h2>\n
evens = list(filter(lambda x: x % 2 == 0, numbers))<\/p>\n
print(evens)  # \u8f93\u51fa: [2, 4]<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8be6\u89e3<\/strong>\uff1a<\/p>\n
filter()<\/code>\u51fd\u6570\u63d0\u4f9b\u4e86\u4e00\u79cd\u7075\u6d3b\u7684\u65b9\u6cd5\u6765\u7b5b\u9009\u7b26\u5408\u7279\u5b9a\u6761\u4ef6\u7684\u5143\u7d20\u3002\u5b83\u8fd4\u56de\u4e00\u4e2a\u8fed\u4ee3\u5668\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528list()<\/code>\u51fd\u6570\u5c06\u5176\u8f6c\u6362\u4e3a\u5217\u8868\u3002<\/p>\n<\/p>\n
\u5341\u56db\u3001\u4f7f\u7528map()\u51fd\u6570\u5bf9\u6570\u5b57\u8fdb\u884c\u53d8\u6362<\/h3>\n<\/p>\n
map()<\/code>\u51fd\u6570\u53ef\u4ee5\u5bf9\u6570\u5b57\u8fdb\u884c\u53d8\u6362\uff0c\u5e76\u5c06\u7ed3\u679c\u653e\u5165\u5217\u8868\u4e2d\u3002\u5b83\u8fd4\u56de\u4e00\u4e2a\u8fed\u4ee3\u5668\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528list()<\/code>\u51fd\u6570\u5c06\u5176\u8f6c\u6362\u4e3a\u5217\u8868\u3002<\/p>\n<\/p>\n
# \u521b\u5efa\u4e00\u4e2a\u5305\u542b\u591a\u4e2a\u5143\u7d20\u7684\u5217\u8868<\/p>\n
numbers = [1, 2, 3]<\/p>\n
\u4f7f\u7528map()\u51fd\u6570\u5bf9\u6570\u5b57\u8fdb\u884c\u5e73\u65b9\u53d8\u6362<\/strong><\/h2>\n
squares = list(map(lambda x: x  2, numbers))<\/p>\n
print(squares)  # \u8f93\u51fa: [1, 4, 9]<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8be6\u89e3<\/strong>\uff1a<\/p>\n
map()<\/code>\u51fd\u6570\u63d0\u4f9b\u4e86\u4e00\u79cd\u7075\u6d3b\u7684\u65b9\u6cd5\u6765\u5bf9\u5143\u7d20\u8fdb\u884c\u53d8\u6362\u3002\u5b83\u8fd4\u56de\u4e00\u4e2a\u8fed\u4ee3\u5668\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528list()<\/code>\u51fd\u6570\u5c06\u5176\u8f6c\u6362\u4e3a\u5217\u8868\u3002<\/p>\n<\/p>\n
\u5341\u4e94\u3001\u4f7f\u7528reduce()\u51fd\u6570\u5bf9\u6570\u5b57\u8fdb\u884c\u7d2f\u79ef\u8ba1\u7b97<\/h3>\n<\/p>\n
reduce()<\/code>\u51fd\u6570\u53ef\u4ee5\u5bf9\u6570\u5b57\u8fdb\u884c\u7d2f\u79ef\u8ba1\u7b97\uff0c\u5e76\u5c06\u7ed3\u679c\u653e\u5165\u5217\u8868\u4e2d\u3002\u5b83\u8fd4\u56de\u4e00\u4e2a\u5355\u4e00\u7684\u7ed3\u679c\u3002<\/p>\n<\/p>\n
from functools import reduce<\/p>\n
\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u591a\u4e2a\u5143\u7d20\u7684\u5217\u8868<\/strong><\/h2>\n
numbers = [1, 2, 3]<\/p>\n
\u4f7f\u7528reduce()\u51fd\u6570\u5bf9\u6570\u5b57\u8fdb\u884c\u7d2f\u79ef\u4e58\u79ef\u8ba1\u7b97<\/strong><\/h2>\n
product = reduce(lambda x, y: x * y, numbers)<\/p>\n
print(product)  # \u8f93\u51fa: 6<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8be6\u89e3<\/strong>\uff1a<\/p>\n
reduce()<\/code>\u51fd\u6570\u63d0\u4f9b\u4e86\u4e00\u79cd\u7075\u6d3b\u7684\u65b9\u6cd5\u6765\u5bf9\u5143\u7d20\u8fdb\u884c\u7d2f\u79ef\u8ba1\u7b97\u3002\u5b83\u8fd4\u56de\u4e00\u4e2a\u5355\u4e00\u7684\u7ed3\u679c\uff0c\u9002\u7528\u4e8e\u9700\u8981\u5bf9\u5143\u7d20\u8fdb\u884c\u805a\u5408\u64cd\u4f5c\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n
\u7ed3\u8bba<\/h3>\n<\/p>\n
\u5728Python\u4e2d\uff0c\u6709\u591a\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5c06\u6570\u5b57\u653e\u5165\u5217\u8868\u4e2d\uff0c\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u9002\u7528\u7684\u573a\u666f\u548c\u4f18\u7f3a\u70b9\u3002\u4f7f\u7528append()\u65b9\u6cd5\u3001\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u3001\u4f7f\u7528\u52a0\u53f7\u8fd0\u7b97\u7b26\u3001\u4f7f\u7528extend()\u65b9\u6cd5<\/strong>\u662f\u6700\u5e38\u7528\u7684\u51e0\u79cd\u65b9\u6cd5\u3002\u6839\u636e\u5177\u4f53\u9700\u6c42\uff0c\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u6548\u7387\u548c\u53ef\u8bfb\u6027\u3002\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u5e2e\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u548c\u638c\u63e1\u5c06\u6570\u5b57\u653e\u5165\u5217\u8868\u7684\u5404\u79cd\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u6570\u5b57\u7684\u7a7a\u5217\u8868\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u7b80\u5355\u7684\u8d4b\u503c\u6765\u521b\u5efa\u4e00\u4e2a\u7a7a\u5217\u8868\uff0c\u4f8b\u5982\uff1amy_list = []<\/code>\u3002\u8fd9\u4e2a\u5217\u8868\u53ef\u4ee5\u5728\u540e\u7eed\u7684\u4ee3\u7801\u4e2d\u6dfb\u52a0\u6570\u5b57\u6216\u5176\u4ed6\u6570\u636e\u7c7b\u578b\u3002<\/p>\n
\u4f7f\u7528Python\u5411\u5217\u8868\u6dfb\u52a0\u6570\u5b57\u7684\u5e38\u89c1\u65b9\u6cd5\u6709\u54ea\u4e9b\uff1f<\/strong>
\u5411\u5217\u8868\u6dfb\u52a0\u6570\u5b57\u6709\u591a\u79cd\u65b9\u6cd5\u3002\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528append()<\/code>\u51fd\u6570\uff0c\u4f8b\u5982\uff1amy_list.append(5)<\/code>\uff0c\u8fd9\u5c06\u628a\u6570\u5b575\u6dfb\u52a0\u5230\u5217\u8868\u7684\u672b\u5c3e\u3002\u60a8\u4e5f\u53ef\u4ee5\u4f7f\u7528extend()<\/code>\u65b9\u6cd5\u5c06\u591a\u4e2a\u6570\u5b57\u6dfb\u52a0\u5230\u5217\u8868\u4e2d\uff0c\u5982\uff1amy_list.extend([1, 2, 3])<\/code>\uff0c\u8fd9\u5c06\u628a1\u30012\u548c3\u6dfb\u52a0\u5230\u5217\u8868\u4e2d\u3002<\/p>\n
\u5982\u4f55\u5728Python\u4e2d\u5c06\u591a\u4e2a\u6570\u5b57\u4e00\u6b21\u6027\u6dfb\u52a0\u5230\u5217\u8868\u4e2d\uff1f<\/strong>
\u60a8\u53ef\u4ee5\u901a\u8fc7\u5217\u8868\u63a8\u5bfc\u5f0f\u6216\u4f7f\u7528+<\/code>\u8fd0\u7b97\u7b26\u5c06\u591a\u4e2a\u6570\u5b57\u5408\u5e76\u5230\u4e00\u4e2a\u5217\u8868\u4e2d\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u6570\u5b57\u7684\u5217\u8868\uff1amy_list = [x for x in range(10)]<\/code>\uff0c\u8fd9\u5c06\u751f\u6210\u4e00\u4e2a\u5305\u542b0\u52309\u7684\u6570\u5b57\u5217\u8868\u3002\u53e6\u4e00\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528my_list += [4, 5, 6]<\/code>\u6765\u5c064\u30015\u548c6\u6dfb\u52a0\u5230\u73b0\u6709\u5217\u8868\u4e2d\u3002<\/p>\n
\u5982\u4f55\u68c0\u67e5\u5217\u8868\u4e2d\u662f\u5426\u5305\u542b\u7279\u5b9a\u7684\u6570\u5b57\uff1f<\/strong>
\u8981\u68c0\u67e5\u4e00\u4e2a\u6570\u5b57\u662f\u5426\u5728\u5217\u8868\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528in<\/code>\u8fd0\u7b97\u7b26\u3002\u4f8b\u5982\uff0cif 5 in my_list:<\/code>\u5c06\u8fd4\u56deTrue\uff0c\u5982\u679c\u6570\u5b575\u5728my_list<\/code>\u4e2d\u3002\u8fd9\u6837\u53ef\u4ee5\u6709\u6548\u5730\u5224\u65ad\u5217\u8868\u4e2d\u662f\u5426\u5b58\u5728\u7279\u5b9a\u7684\u6570\u5b57\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u5c06\u6570\u5b57\u653e\u5165\u5217\u8868\u7684\u65b9\u6cd5\u6709\uff1a\u4f7f\u7528append()\u65b9\u6cd5\u3001\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u3001\u4f7f\u7528\u52a0\u53f7\u8fd0\u7b97\u7b26\u3001\u4f7f\u7528ext […]","protected":false},"author":3,"featured_media":1026244,"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\/1026234"}],"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=1026234"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1026234\/revisions"}],"predecessor-version":[{"id":1026245,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1026234\/revisions\/1026245"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1026244"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1026234"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1026234"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1026234"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}