{"id":1148080,"date":"2025-01-13T16:32:50","date_gmt":"2025-01-13T08:32:50","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1148080.html"},"modified":"2025-01-13T16:32:53","modified_gmt":"2025-01-13T08:32:53","slug":"python%e5%ad%97%e5%85%b8%e5%a6%82%e4%bd%95%e6%b7%bb%e5%8a%a0%e5%88%97%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1148080.html","title":{"rendered":"python\u5b57\u5178\u5982\u4f55\u6dfb\u52a0\u5217\u8868"},"content":{"rendered":"

\"python\u5b57\u5178\u5982\u4f55\u6dfb\u52a0\u5217\u8868\"<\/p>\n

\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u8d4b\u503c\u3001update()<\/code>\u65b9\u6cd5\u3001setdefault()<\/code>\u65b9\u6cd5\u7b49\u65b9\u5f0f\u5c06\u5217\u8868\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\u3002<\/strong>\u4f8b\u5982\uff0c\u53ef\u4ee5\u76f4\u63a5\u5c06\u5217\u8868\u8d4b\u503c\u7ed9\u5b57\u5178\u7684\u67d0\u4e2a\u952e\uff0c\u6216\u8005\u4f7f\u7528update()<\/code>\u65b9\u6cd5\u6279\u91cf\u6dfb\u52a0\u952e\u503c\u5bf9\u3002\u8be6\u7ec6\u63cf\u8ff0\u4e00\u4e0b\u8d4b\u503c\u7684\u65b9\u6cd5\uff0c\u901a\u8fc7\u76f4\u63a5\u8d4b\u503c\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u5c06\u4e00\u4e2a\u5217\u8868\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\u3002\u5177\u4f53\u64cd\u4f5c\u5982\u4e0b\uff1a<\/p>\n<\/p>\n

# \u901a\u8fc7\u76f4\u63a5\u8d4b\u503c\u5c06\u5217\u8868\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d<\/p>\n
my_dict = {}<\/p>\n
my_list = [1, 2, 3]<\/p>\n
my_dict['my_key'] = my_list<\/p>\n
print(my_dict)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u521b\u5efa\u4e86\u4e00\u4e2a\u7a7a\u5b57\u5178my_dict<\/code>\u548c\u4e00\u4e2a\u5305\u542b\u6574\u6570\u7684\u5217\u8868my_list<\/code>\u3002\u7136\u540e\uff0c\u901a\u8fc7\u5c06\u5217\u8868\u8d4b\u503c\u7ed9\u5b57\u5178\u7684\u952e'my_key'<\/code>\uff0c\u5c06\u5217\u8868\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\u3002\u6700\u7ec8\uff0c\u6253\u5370\u51fa\u7684\u5b57\u5178\u5305\u542b\u4e86\u5217\u8868\u3002<\/p>\n<\/p>\n
\u4ee5\u4e0b\u5185\u5bb9\u8be6\u7ec6\u4ecb\u7ecd\u51e0\u79cd\u65b9\u5f0f\u5c06\u5217\u8868\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\uff0c\u5e76\u4ecb\u7ecd\u76f8\u5173\u6ce8\u610f\u4e8b\u9879\u548c\u5b9e\u8df5\u7ecf\u9a8c\u3002<\/p>\n<\/p>\n
\u4e00\u3001\u8d4b\u503c\u65b9\u5f0f\u6dfb\u52a0\u5217\u8868<\/strong><\/h2>\n
\u901a\u8fc7\u8d4b\u503c\u64cd\u4f5c\u53ef\u4ee5\u5c06\u5217\u8868\u76f4\u63a5\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\uff0c\u8fd9\u662f\u6700\u5e38\u7528\u4e14\u76f4\u89c2\u7684\u65b9\u6cd5\u3002<\/strong><\/p>\n<\/p>\n
# \u793a\u4f8b\u4ee3\u7801<\/p>\n
my_dict = {}<\/p>\n
my_list = [1, 2, 3]<\/p>\n
my_dict['my_key'] = my_list<\/p>\n
print(my_dict)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u79cd\u65b9\u6cd5\u4e2d\uff0c\u6211\u4eec\u76f4\u63a5\u5c06\u5217\u8868\u8d4b\u503c\u7ed9\u5b57\u5178\u7684\u952e\u540d'my_key'<\/code>\uff0c\u4ece\u800c\u5c06\u5217\u8868\u6210\u529f\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\u3002\u8fd9\u79cd\u65b9\u6cd5\u64cd\u4f5c\u7b80\u5355\u3001\u6613\u4e8e\u7406\u89e3\u4e14\u9ad8\u6548\u3002<\/p>\n<\/p>\n
\u6ce8\u610f\u4e8b\u9879<\/h3>\n<\/p>\n
    \n
  1. \u952e\u540d\u552f\u4e00\u6027<\/strong>\uff1a\u5b57\u5178\u4e2d\u7684\u952e\u540d\u5fc5\u987b\u662f\u552f\u4e00\u7684\u3002\u5982\u679c\u8d4b\u503c\u64cd\u4f5c\u4e2d\u4f7f\u7528\u4e86\u5df2\u7ecf\u5b58\u5728\u7684\u952e\u540d\uff0c\u5219\u4f1a\u8986\u76d6\u539f\u6709\u7684\u503c\u3002<\/li>\n
  2. \u5217\u8868\u53ef\u53d8\u6027<\/strong>\uff1a\u5217\u8868\u662f\u53ef\u53d8\u7c7b\u578b\uff0c\u610f\u5473\u7740\u53ef\u4ee5\u5728\u6dfb\u52a0\u5230\u5b57\u5178\u540e\u5bf9\u5217\u8868\u8fdb\u884c\u4fee\u6539\u3002\u5982\u5728\u5b57\u5178\u4e2d\u4fee\u6539\u5217\u8868\u4e2d\u7684\u5143\u7d20\uff0c\u539f\u5217\u8868\u4e5f\u4f1a\u968f\u4e4b\u53d8\u5316\u3002<\/li>\n<\/ol>\n
    # \u793a\u4f8b\u4ee3\u7801<\/p>\n
    my_dict = {}<\/p>\n
    my_list = [1, 2, 3]<\/p>\n
    my_dict['my_key'] = my_list<\/p>\n
    my_dict['my_key'][0] = 100<\/p>\n
    print(my_dict)  # \u8f93\u51fa: {'my_key': [100, 2, 3]}<\/p>\n
    print(my_list)  # \u8f93\u51fa: [100, 2, 3]<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u4e8c\u3001\u4f7f\u7528update()<\/code>\u65b9\u6cd5<\/strong><\/h2>\n
    \u901a\u8fc7update()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u6279\u91cf\u6dfb\u52a0\u952e\u503c\u5bf9\uff0c\u5305\u62ec\u5217\u8868\u3002<\/strong><\/p>\n<\/p>\n
    update()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u5c06\u4e00\u4e2a\u5b57\u5178\u7684\u952e\u503c\u5bf9\u66f4\u65b0\u6216\u6dfb\u52a0\u5230\u53e6\u4e00\u4e2a\u5b57\u5178\u4e2d\u3002\u8fd9\u5bf9\u6211\u4eec\u6279\u91cf\u6dfb\u52a0\u5185\u5bb9\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n
    # \u793a\u4f8b\u4ee3\u7801<\/p>\n
    my_dict = {}<\/p>\n
    my_list = [1, 2, 3]<\/p>\n
    my_dict.update({'my_key': my_list})<\/p>\n
    print(my_dict)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528update()<\/code>\u65b9\u6cd5\u5c06\u5305\u542b\u5217\u8868\u7684\u952e\u503c\u5bf9\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\u3002<\/p>\n<\/p>\n
    \u6ce8\u610f\u4e8b\u9879<\/h3>\n<\/p>\n
      \n
    1. \u952e\u540d\u51b2\u7a81<\/strong>\uff1aupdate()<\/code>\u65b9\u6cd5\u4f1a\u8986\u76d6\u5177\u6709\u76f8\u540c\u952e\u540d\u7684\u539f\u6709\u503c\u3002<\/li>\n
    2. \u53c2\u6570\u7c7b\u578b<\/strong>\uff1aupdate()<\/code>\u65b9\u6cd5\u63a5\u53d7\u53e6\u4e00\u4e2a\u5b57\u5178\u4f5c\u4e3a\u53c2\u6570\uff0c\u4e5f\u53ef\u4ee5\u63a5\u53d7\u952e\u503c\u5bf9\u5f62\u5f0f\u7684\u53c2\u6570\u3002<\/li>\n<\/ol>\n
      # \u793a\u4f8b\u4ee3\u7801<\/p>\n
      my_dict = {'existing_key': 10}<\/p>\n
      my_list = [1, 2, 3]<\/p>\n
      my_dict.update({'my_key': my_list, 'existing_key': 100})<\/p>\n
      print(my_dict)  # \u8f93\u51fa: {'existing_key': 100, 'my_key': [1, 2, 3]}<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u4e09\u3001\u4f7f\u7528setdefault()<\/code>\u65b9\u6cd5<\/strong><\/h2>\n
      setdefault()<\/code>\u65b9\u6cd5\u5728\u5b57\u5178\u4e2d\u8bbe\u7f6e\u952e\u503c\u5bf9\uff0c\u5982\u679c\u952e\u4e0d\u5b58\u5728\uff0c\u5219\u6dfb\u52a0\u952e\u548c\u503c\uff0c\u5982\u679c\u952e\u5df2\u5b58\u5728\uff0c\u5219\u8fd4\u56de\u73b0\u6709\u503c\u3002<\/strong><\/p>\n<\/p>\n
      # \u793a\u4f8b\u4ee3\u7801<\/p>\n
      my_dict = {}<\/p>\n
      my_list = [1, 2, 3]<\/p>\n
      my_dict.setdefault('my_key', my_list)<\/p>\n
      print(my_dict)<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u5728\u8fd9\u79cd\u65b9\u6cd5\u4e2d\uff0csetdefault()<\/code>\u65b9\u6cd5\u5728\u5b57\u5178\u4e2d\u8bbe\u7f6e\u952e'my_key'<\/code>\u53ca\u5176\u5bf9\u5e94\u7684\u503c\u5217\u8868\u3002\u5982\u679c\u952e\u5df2\u5b58\u5728\uff0c\u5219\u8fd4\u56de\u73b0\u6709\u503c\uff0c\u800c\u4e0d\u8fdb\u884c\u66f4\u65b0\u3002<\/p>\n<\/p>\n
      \u6ce8\u610f\u4e8b\u9879<\/h3>\n<\/p>\n
        \n
      1. \u952e\u540d\u5b58\u5728\u6027<\/strong>\uff1a\u8be5\u65b9\u6cd5\u5728\u952e\u540d\u4e0d\u5b58\u5728\u65f6\u624d\u4f1a\u6dfb\u52a0\u952e\u503c\u5bf9\uff0c\u82e5\u952e\u540d\u5df2\u5b58\u5728\u5219\u4e0d\u4f1a\u8fdb\u884c\u4fee\u6539\u3002<\/li>\n
      2. \u65b9\u6cd5\u8fd4\u56de\u503c<\/strong>\uff1a\u8be5\u65b9\u6cd5\u8fd4\u56de\u73b0\u6709\u503c\u6216\u65b0\u6dfb\u52a0\u7684\u503c\u3002<\/li>\n<\/ol>\n
        # \u793a\u4f8b\u4ee3\u7801<\/p>\n
        my_dict = {'existing_key': 10}<\/p>\n
        my_list = [1, 2, 3]<\/p>\n
        result = my_dict.setdefault('existing_key', 100)<\/p>\n
        print(my_dict)  # \u8f93\u51fa: {'existing_key': 10}<\/p>\n
        print(result)  # \u8f93\u51fa: 10<\/p>\n
        <\/code><\/pre>\n<\/p>\n
        \u56db\u3001\u4f7f\u7528collections.defaultdict<\/code><\/strong><\/h2>\n
        defaultdict<\/code>\u662fcollections<\/code>\u6a21\u5757\u4e2d\u7684\u4e00\u79cd\u5b57\u5178\u7c7b\u578b\uff0c\u63d0\u4f9b\u4e86\u4e3a\u4e0d\u5b58\u5728\u7684\u952e\u81ea\u52a8\u751f\u6210\u9ed8\u8ba4\u503c\u7684\u529f\u80fd\u3002<\/strong><\/p>\n<\/p>\n
        from collections import defaultdict<\/p>\n
        \u793a\u4f8b\u4ee3\u7801<\/strong><\/h2>\n
        my_dict = defaultdict(list)<\/p>\n
        my_list = [1, 2, 3]<\/p>\n
        my_dict['my_key'].extend(my_list)<\/p>\n
        print(my_dict)<\/p>\n
        <\/code><\/pre>\n<\/p>\n
        \u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0cdefaultdict<\/code>\u7684\u9ed8\u8ba4\u503c\u4e3a\u5217\u8868\u7c7b\u578b\uff0c\u56e0\u6b64\u5728\u8bbf\u95ee\u672a\u5b58\u5728\u7684\u952e\u65f6\u4f1a\u81ea\u52a8\u521b\u5efa\u4e00\u4e2a\u7a7a\u5217\u8868\uff0c\u5e76\u53ef\u4ee5\u4f7f\u7528extend()<\/code>\u65b9\u6cd5\u5c06\u5217\u8868\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\u3002<\/p>\n<\/p>\n
        \u6ce8\u610f\u4e8b\u9879<\/h3>\n<\/p>\n
          \n
        1. \u81ea\u52a8\u521d\u59cb\u5316<\/strong>\uff1adefaultdict<\/code>\u4f1a\u81ea\u52a8\u4e3a\u4e0d\u5b58\u5728\u7684\u952e\u521d\u59cb\u5316\u9ed8\u8ba4\u503c\uff0c\u8fd9\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u975e\u5e38\u6709\u7528\u3002<\/li>\n
        2. \u7c7b\u578b\u9650\u5236<\/strong>\uff1a\u9700\u8981\u6307\u5b9a\u9ed8\u8ba4\u503c\u7684\u7c7b\u578b\uff0c\u4f8b\u5982\u5728\u793a\u4f8b\u4e2d\u4f7f\u7528list<\/code>\u4f5c\u4e3a\u9ed8\u8ba4\u503c\u7c7b\u578b\u3002<\/li>\n<\/ol>\n
          from collections import defaultdict<\/p>\n
          \u793a\u4f8b\u4ee3\u7801<\/strong><\/h2>\n
          my_dict = defaultdict(list)<\/p>\n
          my_dict['new_key'].append(4)<\/p>\n
          print(my_dict)  # \u8f93\u51fa: defaultdict(<class 'list'>, {'new_key': [4]})<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u4e94\u3001\u4f7f\u7528dict.setdefault<\/code>\u65b9\u6cd5\u4e0elist.append<\/code>\u65b9\u6cd5\u7ec4\u5408<\/strong><\/h2>\n
          \u901a\u8fc7\u5c06dict.setdefault<\/code>\u65b9\u6cd5\u4e0elist.append<\/code>\u65b9\u6cd5\u7ec4\u5408\u4f7f\u7528\uff0c\u53ef\u4ee5\u5728\u4e0d\u5b58\u5728\u952e\u65f6\u6dfb\u52a0\u65b0\u5217\u8868\uff0c\u5e76\u5728\u5217\u8868\u4e2d\u6dfb\u52a0\u65b0\u5143\u7d20\u3002<\/strong><\/p>\n<\/p>\n
          # \u793a\u4f8b\u4ee3\u7801<\/p>\n
          my_dict = {}<\/p>\n
          my_list = [1, 2, 3]<\/p>\n
          my_dict.setdefault('my_key', []).extend(my_list)<\/p>\n
          print(my_dict)<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u5728\u8fd9\u79cd\u65b9\u6cd5\u4e2d\uff0c\u9996\u5148\u4f7f\u7528setdefault<\/code>\u65b9\u6cd5\u8bbe\u7f6e\u952e\u503c\u5bf9\uff0c\u5982\u679c\u952e\u4e0d\u5b58\u5728\u5219\u6dfb\u52a0\u4e00\u4e2a\u7a7a\u5217\u8868\u4f5c\u4e3a\u503c\u3002\u7136\u540e\uff0c\u4f7f\u7528extend<\/code>\u65b9\u6cd5\u5c06\u5217\u8868\u4e2d\u7684\u5143\u7d20\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\u7684\u503c\u5217\u8868\u4e2d\u3002<\/p>\n<\/p>\n
          \u6ce8\u610f\u4e8b\u9879<\/h3>\n<\/p>\n
            \n
          1. \u952e\u503c\u5bf9\u521d\u59cb\u5316<\/strong>\uff1a\u5728\u952e\u4e0d\u5b58\u5728\u65f6\uff0csetdefault<\/code>\u65b9\u6cd5\u4f1a\u521d\u59cb\u5316\u4e00\u4e2a\u7a7a\u5217\u8868\u4f5c\u4e3a\u503c\u3002<\/li>\n
          2. \u7ed3\u5408\u4f7f\u7528<\/strong>\uff1asetdefault<\/code>\u65b9\u6cd5\u548cappend<\/code>\u6216extend<\/code>\u65b9\u6cd5\u7ed3\u5408\u4f7f\u7528\uff0c\u80fd\u591f\u7075\u6d3b\u5730\u5904\u7406\u5b57\u5178\u4e2d\u7684\u5217\u8868\u64cd\u4f5c\u3002<\/li>\n<\/ol>\n
            # \u793a\u4f8b\u4ee3\u7801<\/p>\n
            my_dict = {}<\/p>\n
            my_list = [1, 2, 3]<\/p>\n
            for item in my_list:<\/p>\n
                my_dict.setdefault('my_key', []).append(item)<\/p>\n
            print(my_dict)  # \u8f93\u51fa: {'my_key': [1, 2, 3]}<\/p>\n
            <\/code><\/pre>\n<\/p>\n
            \u516d\u3001\u4f7f\u7528dict<\/code>\u521d\u59cb\u5316\u65f6\u6dfb\u52a0\u5217\u8868<\/strong><\/h2>\n
            \u53ef\u4ee5\u5728\u521b\u5efa\u5b57\u5178\u65f6\u76f4\u63a5\u4e3a\u5176\u6dfb\u52a0\u5305\u542b\u5217\u8868\u7684\u952e\u503c\u5bf9\u3002<\/strong><\/p>\n<\/p>\n
            # \u793a\u4f8b\u4ee3\u7801<\/p>\n
            my_list = [1, 2, 3]<\/p>\n
            my_dict = {'my_key': my_list}<\/p>\n
            print(my_dict)<\/p>\n
            <\/code><\/pre>\n<\/p>\n
            \u5728\u8fd9\u79cd\u65b9\u6cd5\u4e2d\uff0c\u521b\u5efa\u5b57\u5178\u65f6\u76f4\u63a5\u5c06\u952e\u503c\u5bf9\u8bbe\u7f6e\u4e3a\u5305\u542b\u5217\u8868\u7684\u5f62\u5f0f\uff0c\u4ece\u800c\u5728\u5b57\u5178\u521d\u59cb\u5316\u65f6\u5373\u5305\u542b\u6240\u9700\u7684\u5217\u8868\u3002<\/p>\n<\/p>\n
            \u6ce8\u610f\u4e8b\u9879<\/h3>\n<\/p>\n
              \n
            1. \u5b57\u5178\u521d\u59cb\u5316<\/strong>\uff1a\u5728\u521b\u5efa\u5b57\u5178\u65f6\u76f4\u63a5\u6dfb\u52a0\u6240\u9700\u7684\u952e\u503c\u5bf9\uff0c\u7b80\u6d01\u660e\u4e86\u3002<\/li>\n
            2. \u4e00\u6b21\u6027\u521d\u59cb\u5316<\/strong>\uff1a\u9002\u7528\u4e8e\u5728\u5b57\u5178\u521d\u59cb\u5316\u65f6\u9700\u8981\u6dfb\u52a0\u591a\u4e2a\u952e\u503c\u5bf9\u7684\u60c5\u51b5\u3002<\/li>\n<\/ol>\n
              # \u793a\u4f8b\u4ee3\u7801<\/p>\n
              my_list1 = [1, 2, 3]<\/p>\n
              my_list2 = [4, 5, 6]<\/p>\n
              my_dict = {'key1': my_list1, 'key2': my_list2}<\/p>\n
              print(my_dict)  # \u8f93\u51fa: {'key1': [1, 2, 3], 'key2': [4, 5, 6]}<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u4e03\u3001\u4f7f\u7528dict.update<\/code>\u4e0edict<\/code>\u5408\u5e76<\/strong><\/h2>\n
              \u53ef\u4ee5\u901a\u8fc7dict.update<\/code>\u65b9\u6cd5\u5c06\u591a\u4e2a\u5b57\u5178\u5408\u5e76\uff0c\u5176\u4e2d\u4e00\u4e2a\u5b57\u5178\u5305\u542b\u5217\u8868\u3002<\/strong><\/p>\n<\/p>\n
              # \u793a\u4f8b\u4ee3\u7801<\/p>\n
              my_dict = {'existing_key': 10}<\/p>\n
              additional_dict = {'my_key': [1, 2, 3]}<\/p>\n
              my_dict.update(additional_dict)<\/p>\n
              print(my_dict)<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u5728\u8fd9\u79cd\u65b9\u6cd5\u4e2d\uff0c\u9996\u5148\u521b\u5efa\u5305\u542b\u5217\u8868\u7684\u5b57\u5178\uff0c\u7136\u540e\u4f7f\u7528update<\/code>\u65b9\u6cd5\u5c06\u5176\u5408\u5e76\u5230\u5df2\u6709\u5b57\u5178\u4e2d\u3002<\/p>\n<\/p>\n
              \u6ce8\u610f\u4e8b\u9879<\/h3>\n<\/p>\n
                \n
              1. \u5b57\u5178\u5408\u5e76<\/strong>\uff1a\u9002\u7528\u4e8e\u9700\u8981\u5408\u5e76\u591a\u4e2a\u5b57\u5178\u7684\u60c5\u51b5\u3002<\/li>\n
              2. \u952e\u540d\u51b2\u7a81<\/strong>\uff1a\u5728\u5408\u5e76\u8fc7\u7a0b\u4e2d\uff0c\u5177\u6709\u76f8\u540c\u952e\u540d\u7684\u503c\u4f1a\u88ab\u8986\u76d6\u3002<\/li>\n<\/ol>\n
                # \u793a\u4f8b\u4ee3\u7801<\/p>\n
                my_dict = {'existing_key': 10}<\/p>\n
                additional_dict1 = {'my_key': [1, 2, 3]}<\/p>\n
                additional_dict2 = {'new_key': [4, 5, 6]}<\/p>\n
                my_dict.update(additional_dict1)<\/p>\n
                my_dict.update(additional_dict2)<\/p>\n
                print(my_dict)  # \u8f93\u51fa: {'existing_key': 10, 'my_key': [1, 2, 3], 'new_key': [4, 5, 6]}<\/p>\n
                <\/code><\/pre>\n<\/p>\n
                \u516b\u3001\u4f7f\u7528\u5faa\u73af\u6dfb\u52a0\u591a\u4e2a\u5217\u8868<\/strong><\/h2>\n
                \u53ef\u4ee5\u4f7f\u7528\u5faa\u73af\u5c06\u591a\u4e2a\u5217\u8868\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\uff0c\u6bcf\u4e2a\u5217\u8868\u5bf9\u5e94\u4e0d\u540c\u7684\u952e\u3002<\/strong><\/p>\n<\/p>\n
                # \u793a\u4f8b\u4ee3\u7801<\/p>\n
                my_dict = {}<\/p>\n
                keys = ['key1', 'key2', 'key3']<\/p>\n
                lists = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]<\/p>\n
                for key, lst in zip(keys, lists):<\/p>\n
                    my_dict[key] = lst<\/p>\n
                print(my_dict)<\/p>\n
                <\/code><\/pre>\n<\/p>\n
                \u5728\u8fd9\u79cd\u65b9\u6cd5\u4e2d\uff0c\u4f7f\u7528\u5faa\u73af\u904d\u5386\u952e\u548c\u5217\u8868\uff0c\u5c06\u6bcf\u4e2a\u5217\u8868\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\u5bf9\u5e94\u7684\u952e\u4e0b\u3002<\/p>\n<\/p>\n
                \u6ce8\u610f\u4e8b\u9879<\/h3>\n<\/p>\n
                  \n
                1. \u5faa\u73af\u904d\u5386<\/strong>\uff1a\u9002\u7528\u4e8e\u9700\u8981\u6279\u91cf\u6dfb\u52a0\u591a\u4e2a\u952e\u503c\u5bf9\u7684\u60c5\u51b5\u3002<\/li>\n
                2. \u952e\u5217\u8868\u548c\u503c\u5217\u8868<\/strong>\uff1a\u786e\u4fdd\u952e\u5217\u8868\u548c\u503c\u5217\u8868\u957f\u5ea6\u4e00\u81f4\u3002<\/li>\n<\/ol>\n
                  # \u793a\u4f8b\u4ee3\u7801<\/p>\n
                  my_dict = {}<\/p>\n
                  keys = ['key1', 'key2', 'key3']<\/p>\n
                  lists = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]<\/p>\n
                  for key, lst in zip(keys, lists):<\/p>\n
                      my_dict[key] = lst<\/p>\n
                  print(my_dict)  # \u8f93\u51fa: {'key1': [1, 2, 3], 'key2': [4, 5, 6], 'key3': [7, 8, 9]}<\/p>\n
                  <\/code><\/pre>\n<\/p>\n
                  \u4e5d\u3001\u4f7f\u7528\u5b57\u5178\u63a8\u5bfc\u5f0f<\/strong><\/h2>\n
                  \u53ef\u4ee5\u4f7f\u7528\u5b57\u5178\u63a8\u5bfc\u5f0f\u521b\u5efa\u5305\u542b\u5217\u8868\u7684\u5b57\u5178\u3002<\/strong><\/p>\n<\/p>\n
                  # \u793a\u4f8b\u4ee3\u7801<\/p>\n
                  keys = ['key1', 'key2', 'key3']<\/p>\n
                  lists = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]<\/p>\n
                  my_dict = {key: lst for key, lst in zip(keys, lists)}<\/p>\n
                  print(my_dict)<\/p>\n
                  <\/code><\/pre>\n<\/p>\n
                  \u5728\u8fd9\u79cd\u65b9\u6cd5\u4e2d\uff0c\u4f7f\u7528\u5b57\u5178\u63a8\u5bfc\u5f0f\u521b\u5efa\u5b57\u5178\uff0c\u5c06\u6bcf\u4e2a\u5217\u8868\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\u5bf9\u5e94\u7684\u952e\u4e0b\u3002<\/p>\n<\/p>\n
                  \u6ce8\u610f\u4e8b\u9879<\/h3>\n<\/p>\n
                    \n
                  1. \u5b57\u5178\u63a8\u5bfc\u5f0f<\/strong>\uff1a\u7b80\u6d01\u4e14\u9ad8\u6548\u5730\u521b\u5efa\u5305\u542b\u5217\u8868\u7684\u5b57\u5178\u3002<\/li>\n
                  2. \u952e\u5217\u8868\u548c\u503c\u5217\u8868<\/strong>\uff1a\u786e\u4fdd\u952e\u5217\u8868\u548c\u503c\u5217\u8868\u957f\u5ea6\u4e00\u81f4\u3002<\/li>\n<\/ol>\n
                    # \u793a\u4f8b\u4ee3\u7801<\/p>\n
                    keys = ['key1', 'key2', 'key3']<\/p>\n
                    lists = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]<\/p>\n
                    my_dict = {key: lst for key, lst in zip(keys, lists)}<\/p>\n
                    print(my_dict)  # \u8f93\u51fa: {'key1': [1, 2, 3], 'key2': [4, 5, 6], 'key3': [7, 8, 9]}<\/p>\n
                    <\/code><\/pre>\n<\/p>\n
                    \u5341\u3001\u4f7f\u7528dict.fromkeys<\/code>\u65b9\u6cd5<\/strong><\/h2>\n
                    \u53ef\u4ee5\u4f7f\u7528dict.fromkeys<\/code>\u65b9\u6cd5\u521b\u5efa\u5b57\u5178\uff0c\u5e76\u5c06\u6240\u6709\u952e\u7684\u9ed8\u8ba4\u503c\u8bbe\u7f6e\u4e3a\u76f8\u540c\u7684\u5217\u8868\u3002<\/strong><\/p>\n<\/p>\n
                    # \u793a\u4f8b\u4ee3\u7801<\/p>\n
                    keys = ['key1', 'key2', 'key3']<\/p>\n
                    my_list = [1, 2, 3]<\/p>\n
                    my_dict = dict.fromkeys(keys, my_list)<\/p>\n
                    print(my_dict)<\/p>\n
                    <\/code><\/pre>\n<\/p>\n
                    \u5728\u8fd9\u79cd\u65b9\u6cd5\u4e2d\uff0c\u4f7f\u7528dict.fromkeys<\/code>\u65b9\u6cd5\u521b\u5efa\u5b57\u5178\uff0c\u5e76\u5c06\u6240\u6709\u952e\u7684\u9ed8\u8ba4\u503c\u8bbe\u7f6e\u4e3a\u76f8\u540c\u7684\u5217\u8868\u3002<\/p>\n<\/p>\n
                    \u6ce8\u610f\u4e8b\u9879<\/h3>\n<\/p>\n
                      \n
                    1. \u5171\u4eab\u5217\u8868<\/strong>\uff1a\u8fd9\u79cd\u65b9\u6cd5\u4f1a\u5c06\u6240\u6709\u952e\u7684\u503c\u8bbe\u7f6e\u4e3a\u540c\u4e00\u4e2a\u5217\u8868\u5bf9\u8c61\uff0c\u4fee\u6539\u5176\u4e2d\u4e00\u4e2a\u952e\u7684\u503c\u4f1a\u5f71\u54cd\u5176\u4ed6\u952e\u7684\u503c\u3002<\/li>\n
                    2. \u9002\u7528\u573a\u666f<\/strong>\uff1a\u9002\u7528\u4e8e\u9700\u8981\u6240\u6709\u952e\u5171\u4eab\u540c\u4e00\u4e2a\u5217\u8868\u5bf9\u8c61\u7684\u60c5\u51b5\u3002<\/li>\n<\/ol>\n
                      # \u793a\u4f8b\u4ee3\u7801<\/p>\n
                      keys = ['key1', 'key2', 'key3']<\/p>\n
                      my_list = [1, 2, 3]<\/p>\n
                      my_dict = dict.fromkeys(keys, my_list)<\/p>\n
                      my_dict['key1'][0] = 100<\/p>\n
                      print(my_dict)  # \u8f93\u51fa: {'key1': [100, 2, 3], 'key2': [100, 2, 3], 'key3': [100, 2, 3]}<\/p>\n
                      <\/code><\/pre>\n<\/p>\n
                      \u7efc\u4e0a\u6240\u8ff0\uff0cPython\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u5f0f\u5c06\u5217\u8868\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\u3002\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5904\u7406\u5b57\u5178\u548c\u5217\u8868\u7684\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
                      \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
                       \u5982\u4f55\u5728Python\u5b57\u5178\u4e2d\u6dfb\u52a0\u4e00\u4e2a\u65b0\u7684\u5217\u8868\uff1f<\/strong>
                      \u5728Python\u5b57\u5178\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u6307\u5b9a\u4e00\u4e2a\u952e\u6765\u6dfb\u52a0\u4e00\u4e2a\u65b0\u7684\u5217\u8868\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u5b57\u5178\u5e76\u5411\u5176\u6dfb\u52a0\u4e00\u4e2a\u5217\u8868\uff1a  <\/p>\n
                      my_dict = {}\nmy_dict['my_list'] = [1, 2, 3]\n<\/code><\/pre>\n
                      \u8fd9\u6837\uff0c\u5b57\u5178my_dict<\/code>\u5c31\u5305\u542b\u4e00\u4e2a\u952e\u4e3a'my_list'<\/code>\u7684\u5217\u8868\u3002<\/p>\n
                      \u5728\u5df2\u6709\u7684\u5b57\u5178\u4e2d\u5982\u4f55\u5411\u5217\u8868\u6dfb\u52a0\u65b0\u5143\u7d20\uff1f<\/strong>
                      \u5982\u679c\u5b57\u5178\u4e2d\u5df2\u7ecf\u6709\u4e00\u4e2a\u5217\u8868\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528append()<\/code>\u65b9\u6cd5\u5c06\u65b0\u5143\u7d20\u6dfb\u52a0\u5230\u8be5\u5217\u8868\u4e2d\u3002\u5047\u8bbe\u5b57\u5178\u5df2\u5b58\u5728\u5982\u4e0b\uff1a  <\/p>\n
                      my_dict = {'my_list': [1, 2, 3]}\nmy_dict['my_list'].append(4)\n<\/code><\/pre>\n
                      \u6267\u884c\u540e\uff0cmy_dict<\/code>\u4e2d\u7684'my_list'<\/code>\u5c06\u53d8\u4e3a[1, 2, 3, 4]<\/code>\u3002<\/p>\n
                      \u53ef\u4ee5\u5728\u5b57\u5178\u7684\u5217\u8868\u4e2d\u5b58\u50a8\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\u5417\uff1f<\/strong>
                      \u662f\u7684\uff0cPython\u5b57\u5178\u7684\u5217\u8868\u53ef\u4ee5\u5305\u542b\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\u3002\u60a8\u53ef\u4ee5\u5728\u540c\u4e00\u4e2a\u5217\u8868\u4e2d\u5b58\u50a8\u6574\u6570\u3001\u5b57\u7b26\u4e32\u3001\u751a\u81f3\u5176\u4ed6\u5b57\u5178\u3002\u4f8b\u5982\uff1a  <\/p>\n
                      my_dict = {'mixed_list': [1, 'two', 3.0, {'key': 'value'}]}\n<\/code><\/pre>\n
                      \u8fd9\u79cd\u7075\u6d3b\u6027\u4f7f\u5f97Python\u5b57\u5178\u975e\u5e38\u9002\u5408\u5904\u7406\u590d\u6742\u7684\u6570\u636e\u7ed3\u6784\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u8d4b\u503c\u3001update()\u65b9\u6cd5\u3001setdefault()\u65b9\u6cd5\u7b49\u65b9\u5f0f\u5c06\u5217\u8868\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\u3002\u4f8b […]","protected":false},"author":3,"featured_media":1148087,"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\/1148080"}],"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=1148080"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1148080\/revisions"}],"predecessor-version":[{"id":1148090,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1148080\/revisions\/1148090"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1148087"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1148080"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1148080"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1148080"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}