{"id":968307,"date":"2024-12-27T05:05:48","date_gmt":"2024-12-26T21:05:48","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/968307.html"},"modified":"2024-12-27T05:05:50","modified_gmt":"2024-12-26T21:05:50","slug":"python%e4%b8%ad%e5%a6%82%e4%bd%95%e5%90%88%e5%b9%b6list","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/968307.html","title":{"rendered":"python\u4e2d\u5982\u4f55\u5408\u5e76list"},"content":{"rendered":"

\"python\u4e2d\u5982\u4f55\u5408\u5e76list\"<\/p>\n

\u5728Python\u4e2d\u5408\u5e76\u5217\u8868\u6709\u591a\u79cd\u65b9\u6cd5\uff0c\u5305\u62ec\u4f7f\u7528\u52a0\u53f7\u8fd0\u7b97\u7b26\u3001extend()\u65b9\u6cd5\u3001\u5217\u8868\u89e3\u6790\u548citertools\u6a21\u5757\u7b49\u3002\u52a0\u53f7\u8fd0\u7b97\u7b26\u3001extend()\u65b9\u6cd5\u3001\u5217\u8868\u89e3\u6790\u3001itertools.chAI<\/a>n()<\/strong>\u662f\u5408\u5e76\u5217\u8868\u7684\u5e38\u7528\u65b9\u6cd5\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u65b9\u6cd5\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528\u52a0\u53f7\u8fd0\u7b97\u7b26<\/h3>\n<\/p>\n

\u52a0\u53f7\u8fd0\u7b97\u7b26\u662f\u6700\u76f4\u89c2\u7684\u65b9\u6cd5\u4e4b\u4e00\uff0c\u5b83\u53ef\u4ee5\u5c06\u4e24\u4e2a\u6216\u591a\u4e2a\u5217\u8868\u8fde\u63a5\u5728\u4e00\u8d77\u3002<\/p>\n<\/p>\n

\u52a0\u53f7\u8fd0\u7b97\u7b26\u7684\u4f7f\u7528<\/h4>\n<\/p>\n

\u52a0\u53f7\u8fd0\u7b97\u7b26\u53ef\u4ee5\u7528\u4e8e\u5408\u5e76\u4e24\u4e2a\u6216\u591a\u4e2a\u5217\u8868\uff0c\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u5217\u8868\u3002<\/p>\n<\/p>\n

list1 = [1, 2, 3]<\/p>\n
list2 = [4, 5, 6]<\/p>\n
merged_list = list1 + list2<\/p>\n
print(merged_list)  # \u8f93\u51fa: [1, 2, 3, 4, 5, 6]<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u7b80\u5355\u76f4\u89c2\uff0c\u4f46\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4f7f\u7528\u52a0\u53f7\u8fd0\u7b97\u7b26\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5217\u8868\uff0c\u800c\u4e0d\u662f\u5728\u539f\u6709\u5217\u8868\u4e0a\u8fdb\u884c\u4fee\u6539\uff0c\u56e0\u6b64\u5728\u5408\u5e76\u5927\u5217\u8868\u65f6\u53ef\u80fd\u4f1a\u5f71\u54cd\u6027\u80fd\u3002<\/p>\n<\/p>\n
\u4f18\u7f3a\u70b9\u5206\u6790<\/h4>\n<\/p>\n
\u4f7f\u7528\u52a0\u53f7\u8fd0\u7b97\u7b26\u5408\u5e76\u5217\u8868\u7684\u4f18\u70b9\u5728\u4e8e\u5176\u7b80\u5355\u6027\u548c\u6613\u4e8e\u7406\u89e3\u3002\u7136\u800c\uff0c\u7531\u4e8e\u5b83\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5217\u8868\uff0c\u5f53\u5904\u7406\u5927\u578b\u5217\u8868\u65f6\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5185\u5b58\u4f7f\u7528\u589e\u591a\u3002\u53e6\u5916\uff0c\u6bcf\u6b21\u5408\u5e76\u90fd\u9700\u8981\u904d\u5386\u6574\u4e2a\u5217\u8868\uff0c\u53ef\u80fd\u4f1a\u5f71\u54cd\u6027\u80fd\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528extend()\u65b9\u6cd5<\/h3>\n<\/p>\n
extend()\u65b9\u6cd5\u662f\u53e6\u4e00\u79cd\u5408\u5e76\u5217\u8868\u7684\u5e38\u7528\u65b9\u6cd5\uff0c\u4e0e\u52a0\u53f7\u8fd0\u7b97\u7b26\u4e0d\u540c\uff0c\u5b83\u76f4\u63a5\u5728\u539f\u5217\u8868\u4e0a\u8fdb\u884c\u4fee\u6539\u3002<\/p>\n<\/p>\n
extend()\u65b9\u6cd5\u7684\u4f7f\u7528<\/h4>\n<\/p>\n
extend()\u65b9\u6cd5\u7528\u4e8e\u5c06\u4e00\u4e2a\u5217\u8868\u4e2d\u7684\u6240\u6709\u5143\u7d20\u6dfb\u52a0\u5230\u53e6\u4e00\u4e2a\u5217\u8868\u7684\u672b\u5c3e\u3002<\/p>\n<\/p>\n
list1 = [1, 2, 3]<\/p>\n
list2 = [4, 5, 6]<\/p>\n
list1.extend(list2)<\/p>\n
print(list1)  # \u8f93\u51fa: [1, 2, 3, 4, 5, 6]<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u4f1a\u521b\u5efa\u65b0\u7684\u5217\u8868\uff0c\u800c\u662f\u5728\u539f\u6709\u5217\u8868\u4e0a\u8fdb\u884c\u4fee\u6539\uff0c\u56e0\u6b64\u5728\u5904\u7406\u8f83\u5927\u7684\u5217\u8868\u65f6\u66f4\u4e3a\u9ad8\u6548\u3002<\/p>\n<\/p>\n
\u4f18\u7f3a\u70b9\u5206\u6790<\/h4>\n<\/p>\n
extend()\u65b9\u6cd5\u7684\u4f18\u70b9\u5728\u4e8e\u5176\u6548\u7387\uff0c\u56e0\u4e3a\u5b83\u662f\u5728\u539f\u5217\u8868\u4e0a\u8fdb\u884c\u4fee\u6539\uff0c\u800c\u4e0d\u662f\u521b\u5efa\u65b0\u7684\u5217\u8868\u3002\u7f3a\u70b9\u662f\u5b83\u4f1a\u6539\u53d8\u539f\u5217\u8868\u7684\u5185\u5bb9\uff0c\u56e0\u6b64\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u4fdd\u7559\u539f\u5217\u8868\u4e0d\u53d8\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528\u5217\u8868\u89e3\u6790<\/h3>\n<\/p>\n
\u5217\u8868\u89e3\u6790\u53ef\u4ee5\u7528\u4e8e\u66f4\u590d\u6742\u7684\u5217\u8868\u5408\u5e76\u64cd\u4f5c\uff0c\u7279\u522b\u662f\u5728\u9700\u8981\u5bf9\u5217\u8868\u5143\u7d20\u8fdb\u884c\u5904\u7406\u65f6\u3002<\/p>\n<\/p>\n
\u5217\u8868\u89e3\u6790\u7684\u4f7f\u7528<\/h4>\n<\/p>\n
\u5217\u8868\u89e3\u6790\u53ef\u4ee5\u7528\u4e8e\u521b\u5efa\u65b0\u7684\u5217\u8868\uff0c\u5305\u542b\u6765\u81ea\u591a\u4e2a\u5217\u8868\u7684\u5143\u7d20\u3002<\/p>\n<\/p>\n
list1 = [1, 2, 3]<\/p>\n
list2 = [4, 5, 6]<\/p>\n
merged_list = [x for x in list1] + [y for y in list2]<\/p>\n
print(merged_list)  # \u8f93\u51fa: [1, 2, 3, 4, 5, 6]<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5217\u8868\u89e3\u6790\u63d0\u4f9b\u4e86\u7075\u6d3b\u6027\uff0c\u53ef\u4ee5\u5728\u5408\u5e76\u8fc7\u7a0b\u4e2d\u5bf9\u5143\u7d20\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<\/p>\n
\u4f18\u7f3a\u70b9\u5206\u6790<\/h4>\n<\/p>\n
\u5217\u8868\u89e3\u6790\u7684\u4f18\u70b9\u5728\u4e8e\u5176\u7075\u6d3b\u6027\uff0c\u53ef\u4ee5\u5728\u5408\u5e76\u8fc7\u7a0b\u4e2d\u5bf9\u5143\u7d20\u8fdb\u884c\u5904\u7406\u3002\u7136\u800c\uff0c\u4e0e\u52a0\u53f7\u8fd0\u7b97\u7b26\u7c7b\u4f3c\uff0c\u5b83\u4f1a\u521b\u5efa\u65b0\u7684\u5217\u8868\uff0c\u56e0\u6b64\u5728\u5904\u7406\u5927\u578b\u5217\u8868\u65f6\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5185\u5b58\u4f7f\u7528\u589e\u591a\u3002<\/p>\n<\/p>\n
\u56db\u3001\u4f7f\u7528itertools.chain()\u51fd\u6570<\/h3>\n<\/p>\n
itertools.chain()\u51fd\u6570\u63d0\u4f9b\u4e86\u4e00\u79cd\u9ad8\u6548\u7684\u65b9\u5f0f\u6765\u5408\u5e76\u591a\u4e2a\u53ef\u8fed\u4ee3\u5bf9\u8c61\uff0c\u5305\u62ec\u5217\u8868\u3002<\/p>\n<\/p>\n
itertools.chain()\u51fd\u6570\u7684\u4f7f\u7528<\/h4>\n<\/p>\n
itertools.chain()\u51fd\u6570\u53ef\u4ee5\u7528\u4e8e\u5c06\u591a\u4e2a\u53ef\u8fed\u4ee3\u5bf9\u8c61\u8fde\u63a5\u8d77\u6765\u3002<\/p>\n<\/p>\n
from itertools import chain<\/p>\n
list1 = [1, 2, 3]<\/p>\n
list2 = [4, 5, 6]<\/p>\n
merged_list = list(chain(list1, list2))<\/p>\n
print(merged_list)  # \u8f93\u51fa: [1, 2, 3, 4, 5, 6]<\/p>\n
<\/code><\/pre>\n<\/p>\n
itertools.chain()\u51fd\u6570\u4e0d\u4f1a\u521b\u5efa\u65b0\u7684\u5217\u8868\uff0c\u800c\u662f\u8fd4\u56de\u4e00\u4e2a\u8fed\u4ee3\u5668\uff0c\u56e0\u6b64\u5728\u5904\u7406\u5927\u578b\u5217\u8868\u65f6\u66f4\u4e3a\u9ad8\u6548\u3002<\/p>\n<\/p>\n
\u4f18\u7f3a\u70b9\u5206\u6790<\/h4>\n<\/p>\n
itertools.chain()\u51fd\u6570\u7684\u4f18\u70b9\u5728\u4e8e\u5176\u6548\u7387\uff0c\u56e0\u4e3a\u5b83\u8fd4\u56de\u4e00\u4e2a\u8fed\u4ee3\u5668\uff0c\u800c\u4e0d\u662f\u521b\u5efa\u65b0\u7684\u5217\u8868\u3002\u7f3a\u70b9\u662f\u5b83\u9700\u8981\u5bfc\u5165\u989d\u5916\u7684\u6a21\u5757\uff0c\u5e76\u4e14\u8fd4\u56de\u7684\u662f\u8fed\u4ee3\u5668\u800c\u975e\u5217\u8868\uff0c\u56e0\u6b64\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u9700\u8981\u5c06\u5176\u8f6c\u6362\u4e3a\u5217\u8868\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u603b\u7ed3\u4e0e\u6700\u4f73\u5b9e\u8df5<\/h3>\n<\/p>\n
\u5728Python\u4e2d\u5408\u5e76\u5217\u8868\u6709\u591a\u79cd\u65b9\u6cd5\uff0c\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u4f18\u7f3a\u70b9\u3002\u5728\u9009\u62e9\u5408\u5e76\u5217\u8868\u7684\u65b9\u6cd5\u65f6\uff0c\u5e94\u8be5\u6839\u636e\u5177\u4f53\u9700\u6c42\u8fdb\u884c\u9009\u62e9\u3002<\/p>\n<\/p>\n
    \n
  1. \u52a0\u53f7\u8fd0\u7b97\u7b26<\/strong>\u9002\u7528\u4e8e\u5408\u5e76\u5c0f\u578b\u5217\u8868\uff0c\u7b80\u5355\u76f4\u89c2\uff0c\u4f46\u4e0d\u9002\u7528\u4e8e\u5927\u578b\u5217\u8868\u3002<\/li>\n
  2. extend()\u65b9\u6cd5<\/strong>\u9002\u7528\u4e8e\u9700\u8981\u5728\u539f\u5217\u8868\u4e0a\u8fdb\u884c\u4fee\u6539\u7684\u60c5\u51b5\uff0c\u6548\u7387\u8f83\u9ad8\u3002<\/li>\n
  3. \u5217\u8868\u89e3\u6790<\/strong>\u9002\u7528\u4e8e\u9700\u8981\u5bf9\u5143\u7d20\u8fdb\u884c\u5904\u7406\u7684\u60c5\u51b5\uff0c\u63d0\u4f9b\u4e86\u7075\u6d3b\u6027\u3002<\/li>\n
  4. itertools.chain()\u51fd\u6570<\/strong>\u9002\u7528\u4e8e\u5408\u5e76\u5927\u578b\u5217\u8868\uff0c\u6548\u7387\u8f83\u9ad8\uff0c\u4f46\u9700\u8981\u989d\u5916\u7684\u6a21\u5757\u5bfc\u5165\u3002<\/li>\n<\/ol>\n
    \u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u5e94\u6839\u636e\u5217\u8868\u7684\u5927\u5c0f\u548c\u5408\u5e76\u64cd\u4f5c\u7684\u5177\u4f53\u9700\u6c42\uff0c\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u3002\u5bf9\u4e8e\u5927\u578b\u5217\u8868\uff0c\u5efa\u8bae\u4f7f\u7528extend()\u65b9\u6cd5\u6216itertools.chain()\u51fd\u6570\uff0c\u4ee5\u63d0\u9ad8\u6027\u80fd\u548c\u6548\u7387\u3002\u5bf9\u4e8e\u9700\u8981\u5bf9\u5143\u7d20\u8fdb\u884c\u5904\u7406\u7684\u60c5\u51b5\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u5217\u8868\u89e3\u6790\u3002\u603b\u4e4b\uff0c\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u6027\u80fd\u3002<\/p>\n<\/p>\n
    \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
     \u5728Python\u4e2d\uff0c\u6709\u54ea\u4e9b\u5e38\u89c1\u7684\u65b9\u6cd5\u53ef\u4ee5\u5408\u5e76\u4e24\u4e2a\u6216\u591a\u4e2a\u5217\u8868\uff1f<\/strong>
    \u5728Python\u4e2d\uff0c\u5408\u5e76\u5217\u8868\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u5b9e\u73b0\u3002\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528+<\/code>\u8fd0\u7b97\u7b26\u3001extend()<\/code>\u65b9\u6cd5\u548citertools.chain()<\/code>\u51fd\u6570\u3002\u4f7f\u7528+<\/code>\u8fd0\u7b97\u7b26\uff0c\u53ef\u4ee5\u76f4\u63a5\u5c06\u4e24\u4e2a\u5217\u8868\u8fde\u63a5\uff1bextend()<\/code>\u65b9\u6cd5\u5219\u662f\u5c06\u4e00\u4e2a\u5217\u8868\u7684\u5143\u7d20\u6dfb\u52a0\u5230\u53e6\u4e00\u4e2a\u5217\u8868\u4e2d\uff1b\u800citertools.chain()<\/code>\u53ef\u4ee5\u9ad8\u6548\u5730\u5c06\u591a\u4e2a\u53ef\u8fed\u4ee3\u5bf9\u8c61\u5408\u5e76\u3002\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u3002<\/p>\n
    \u5408\u5e76\u5217\u8868\u65f6\uff0c\u5982\u4f55\u907f\u514d\u91cd\u590d\u5143\u7d20\u7684\u51fa\u73b0\uff1f<\/strong>
    \u5982\u679c\u5e0c\u671b\u5728\u5408\u5e76\u5217\u8868\u65f6\u53bb\u9664\u91cd\u590d\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528set()<\/code>\u51fd\u6570\u5c06\u5217\u8868\u8f6c\u6362\u4e3a\u96c6\u5408\uff0c\u7136\u540e\u518d\u8f6c\u6362\u56de\u5217\u8868\u3002\u8fd9\u6837\u53ef\u4ee5\u786e\u4fdd\u5408\u5e76\u540e\u7684\u5217\u8868\u4e2d\u6bcf\u4e2a\u5143\u7d20\u90fd\u662f\u552f\u4e00\u7684\u3002\u4f8b\u5982\uff0clist(set(list1 + list2))<\/code>\u53ef\u4ee5\u5b9e\u73b0\u5408\u5e76\u5e76\u53bb\u91cd\u7684\u6548\u679c\u3002\u4e0d\u8fc7\u8bf7\u6ce8\u610f\uff0c\u4f7f\u7528\u96c6\u5408\u4f1a\u5bfc\u81f4\u5143\u7d20\u7684\u987a\u5e8f\u4e0d\u4fdd\u7559\u3002<\/p>\n
    \u5982\u4f55\u5728\u5408\u5e76\u5217\u8868\u65f6\u4fdd\u7559\u5143\u7d20\u7684\u539f\u59cb\u987a\u5e8f\uff1f<\/strong>
    \u8981\u5728\u5408\u5e76\u5217\u8868\u7684\u540c\u65f6\u4fdd\u7559\u5143\u7d20\u7684\u539f\u59cb\u987a\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528collections.OrderedDict<\/code>\u6216\u5217\u8868\u63a8\u5bfc\u5f0f\u7ed3\u5408set()<\/code>\u6765\u53bb\u91cd\u3002\u4f8b\u5982\uff0c\u4f7f\u7528OrderedDict.fromkeys(list1 + list2)<\/code>\u53ef\u4ee5\u5f97\u5230\u4e00\u4e2a\u53bb\u91cd\u4e14\u4fdd\u6301\u987a\u5e8f\u7684\u5217\u8868\u3002\u5982\u679c\u4f60\u4f7f\u7528\u7684\u662fPython 3.7\u53ca\u4ee5\u4e0a\u7248\u672c\uff0c\u666e\u901a\u7684\u5b57\u5178\u4e5f\u4f1a\u4fdd\u6301\u63d2\u5165\u987a\u5e8f\uff0c\u56e0\u6b64\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u5b57\u5178\u6765\u5b9e\u73b0\u53bb\u91cd\u800c\u4e0d\u6539\u53d8\u987a\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u5408\u5e76\u5217\u8868\u6709\u591a\u79cd\u65b9\u6cd5\uff0c\u5305\u62ec\u4f7f\u7528\u52a0\u53f7\u8fd0\u7b97\u7b26\u3001extend()\u65b9\u6cd5\u3001\u5217\u8868\u89e3\u6790\u548citertools\u6a21\u5757 […]","protected":false},"author":3,"featured_media":968313,"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\/968307"}],"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=968307"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/968307\/revisions"}],"predecessor-version":[{"id":968320,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/968307\/revisions\/968320"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/968313"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=968307"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=968307"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=968307"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}