{"id":945828,"date":"2024-12-26T23:29:39","date_gmt":"2024-12-26T15:29:39","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/945828.html"},"modified":"2024-12-26T23:29:41","modified_gmt":"2024-12-26T15:29:41","slug":"python%e5%a6%82%e4%bd%95%e6%9e%84%e9%80%a0%e6%a0%91","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/945828.html","title":{"rendered":"python\u5982\u4f55\u6784\u9020\u6811"},"content":{"rendered":"

\"python\u5982\u4f55\u6784\u9020\u6811\"<\/p>\n

\u5728Python\u4e2d\u6784\u9020\u6811\u7684\u5e38\u89c1\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528\u7c7b\u548c\u6307\u9488\u3001\u4f7f\u7528\u5b57\u5178\u3001\u4f7f\u7528\u5217\u8868\u3001\u4ee5\u53ca\u4f7f\u7528\u73b0\u6709\u7684\u6570\u636e\u7ed3\u6784\u5e93\u5982anytree<\/code>\u548cnetworkx<\/code>\u3002<\/strong>\u4f7f\u7528\u7c7b\u548c\u6307\u9488\u7684\u65b9\u5f0f\u6700\u4e3a\u7075\u6d3b\uff0c\u56e0\u4e3a\u5b83\u5141\u8bb8\u7528\u6237\u5b9a\u4e49\u6811\u8282\u70b9\u7684\u5c5e\u6027\u548c\u884c\u4e3a\u3002\u5b57\u5178\u548c\u5217\u8868\u53ef\u4ee5\u7528\u4e8e\u7b80\u5355\u7684\u6811\u7ed3\u6784\uff0c\u4f46\u4e0d\u592a\u9002\u5408\u590d\u6742\u7684\u6811\u5f62\u6570\u636e\u3002\u4f7f\u7528\u4e13\u95e8\u7684\u5e93\u80fd\u7b80\u5316\u6811\u7684\u6784\u5efa\u548c\u64cd\u4f5c\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u8bb2\u89e3\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u4e00\u4e9b\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528\u7c7b\u548c\u6307\u9488\u6784\u9020\u6811<\/p>\n<\/p>\n

\u4f7f\u7528\u7c7b\u548c\u6307\u9488\u662f\u521b\u5efa\u6811\u7ed3\u6784\u7684\u7ecf\u5178\u65b9\u6cd5\u3002\u901a\u8fc7\u5b9a\u4e49\u4e00\u4e2a\u8282\u70b9\u7c7b\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4efb\u610f\u590d\u6742\u7684\u6811\u7ed3\u6784\u3002<\/p>\n<\/p>\n

    \n
  1. \u5b9a\u4e49\u8282\u70b9\u7c7b<\/strong><\/li>\n<\/ol>\n

    \u521b\u5efa\u4e00\u4e2a\u8282\u70b9\u7c7b\uff0c\u8fd9\u4e2a\u7c7b\u5305\u542b\u8282\u70b9\u7684\u503c\u548c\u6307\u5411\u5b50\u8282\u70b9\u7684\u6307\u9488\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u6811\u8282\u70b9\u81f3\u5c11\u9700\u8981\u4e00\u4e2a\u503c\u5c5e\u6027\u548c\u4e00\u4e2a\u5b50\u8282\u70b9\u5217\u8868\u3002<\/p>\n<\/p>\n

    class TreeNode:<\/p>\n
        def __init__(self, value):<\/p>\n
            self.value = value<\/p>\n
            self.children = []<\/p>\n
        def add_child(self, child_node):<\/p>\n
            self.children.append(child_node)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
      \n
    1. \u6784\u9020\u6811<\/strong><\/li>\n<\/ol>\n
      \u901a\u8fc7\u521b\u5efa\u8282\u70b9\u5b9e\u4f8b\u5e76\u4f7f\u7528add_child<\/code>\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6784\u5efa\u6811\u3002<\/p>\n<\/p>\n
      root = TreeNode('Root')<\/p>\n
      child1 = TreeNode('Child1')<\/p>\n
      child2 = TreeNode('Child2')<\/p>\n
      root.add_child(child1)<\/p>\n
      root.add_child(child2)<\/p>\n
      child1.add_child(TreeNode('Child1.1'))<\/p>\n
      child2.add_child(TreeNode('Child2.1'))<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u5728\u4e8e\u7075\u6d3b\u6027\uff0c\u53ef\u4ee5\u968f\u610f\u5b9a\u4e49\u8282\u70b9\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u9002\u5408\u590d\u6742\u7684\u6570\u636e\u7ed3\u6784\u3002<\/p>\n<\/p>\n
      \u4e8c\u3001\u4f7f\u7528\u5b57\u5178\u6784\u9020\u6811<\/p>\n<\/p>\n
      \u5b57\u5178\u662f\u4e00\u79cd\u7b80\u5355\u4f46\u6709\u6548\u7684\u65b9\u5f0f\u6765\u8868\u793a\u6811\u7ed3\u6784\uff0c\u5c24\u5176\u9002\u5408\u90a3\u4e9b\u4e0d\u9700\u8981\u590d\u6742\u64cd\u4f5c\u7684\u6811\u3002<\/p>\n<\/p>\n
        \n
      1. \u4f7f\u7528\u5d4c\u5957\u5b57\u5178<\/strong><\/li>\n<\/ol>\n
        \u6bcf\u4e2a\u8282\u70b9\u53ef\u4ee5\u88ab\u8868\u793a\u4e3a\u4e00\u4e2a\u952e\uff0c\u5b50\u8282\u70b9\u53ef\u4ee5\u4f5c\u4e3a\u5b57\u5178\u7684\u503c\u3002<\/p>\n<\/p>\n
        tree = {<\/p>\n
            'Root': {<\/p>\n
                'Child1': {<\/p>\n
                    'Child1.1': {}<\/p>\n
                },<\/p>\n
                'Child2': {<\/p>\n
                    'Child2.1': {}<\/p>\n
                }<\/p>\n
            }<\/p>\n
        }<\/p>\n
        <\/code><\/pre>\n<\/p>\n
          \n
        1. \u64cd\u4f5c\u5d4c\u5957\u5b57\u5178<\/strong><\/li>\n<\/ol>\n
          \u4e3a\u4e86\u64cd\u4f5c\u8fd9\u6837\u7684\u6811\u7ed3\u6784\uff0c\u9700\u8981\u9012\u5f52\u5730\u904d\u5386\u5b57\u5178\u3002<\/p>\n<\/p>\n
          def print_tree(d, level=0):<\/p>\n
              for key, value in d.items():<\/p>\n
                  print(' ' * level * 4 + str(key))<\/p>\n
                  if isinstance(value, dict):<\/p>\n
                      print_tree(value, level + 1)<\/p>\n
          print_tree(tree)<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u4f7f\u7528\u5b57\u5178\u53ef\u4ee5\u5feb\u901f\u6784\u5efa\u548c\u8bbf\u95ee\u6811\u7ed3\u6784\uff0c\u4f46\u7f3a\u4e4f\u7075\u6d3b\u6027\u548c\u590d\u6742\u6570\u636e\u652f\u6301\u3002<\/p>\n<\/p>\n
          \u4e09\u3001\u4f7f\u7528\u5217\u8868\u6784\u9020\u6811<\/p>\n<\/p>\n
          \u5217\u8868\u53ef\u4ee5\u7528\u4e8e\u6784\u5efa\u7b80\u5355\u7684\u6811\u5f62\u7ed3\u6784\uff0c\u901a\u5e38\u7528\u4e8e\u8868\u793a\u4e8c\u53c9\u6811\u3002<\/p>\n<\/p>\n
            \n
          1. \u4f7f\u7528\u5d4c\u5957\u5217\u8868<\/strong><\/li>\n<\/ol>\n
            \u5728\u4e8c\u53c9\u6811\u4e2d\uff0c\u5217\u8868\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u53ef\u4ee5\u662f\u8282\u70b9\u503c\uff0c\u7b2c\u4e8c\u4e2a\u5143\u7d20\u662f\u5de6\u5b50\u6811\uff0c\u7b2c\u4e09\u4e2a\u5143\u7d20\u662f\u53f3\u5b50\u6811\u3002<\/p>\n<\/p>\n
            tree = ['Root', <\/p>\n
                    ['Child1', <\/p>\n
                     ['Child1.1', [], []], <\/p>\n
                     []], <\/p>\n
                    ['Child2', <\/p>\n
                     [], <\/p>\n
                     ['Child2.1', [], []]]]<\/p>\n
            <\/code><\/pre>\n<\/p>\n
              \n
            1. \u904d\u5386\u6811<\/strong><\/li>\n<\/ol>\n
              \u9012\u5f52\u5730\u904d\u5386\u5d4c\u5957\u5217\u8868\u53ef\u4ee5\u8bbf\u95ee\u6811\u7684\u6bcf\u4e2a\u8282\u70b9\u3002<\/p>\n<\/p>\n
              def print_tree(tree, level=0):<\/p>\n
                  if tree:<\/p>\n
                      print(' ' * level * 4 + str(tree[0]))<\/p>\n
                      print_tree(tree[1], level + 1)<\/p>\n
                      print_tree(tree[2], level + 1)<\/p>\n
              print_tree(tree)<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u5217\u8868\u65b9\u6cd5\u9002\u5408\u7b80\u5355\u7684\u4e8c\u53c9\u6811\uff0c\u4f46\u4e0d\u9002\u5408\u591a\u53c9\u6811\u548c\u590d\u6742\u7684\u6811\u7ed3\u6784\u3002<\/p>\n<\/p>\n
              \u56db\u3001\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\u6784\u9020\u6811<\/p>\n<\/p>\n
              Python\u4e2d\u6709\u8bb8\u591a\u5e93\u53ef\u4ee5\u5e2e\u52a9\u6784\u5efa\u548c\u64cd\u4f5c\u6811\uff0c\u4f8b\u5982anytree<\/code>\u548cnetworkx<\/code>\u3002<\/p>\n<\/p>\n
                \n
              1. \u4f7f\u7528anytree<\/code>\u5e93<\/strong><\/li>\n<\/ol>\n
                anytree<\/code>\u5e93\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5355\u7684\u65b9\u6cd5\u6765\u521b\u5efa\u548c\u904d\u5386\u6811\u3002<\/p>\n<\/p>\n
                pip install anytree<\/p>\n
                <\/code><\/pre>\n<\/p>\n
                from anytree import Node, RenderTree<\/p>\n
                root = Node("Root")<\/p>\n
                child1 = Node("Child1", parent=root)<\/p>\n
                child2 = Node("Child2", parent=root)<\/p>\n
                child1_1 = Node("Child1.1", parent=child1)<\/p>\n
                child2_1 = Node("Child2.1", parent=child2)<\/p>\n
                for pre, fill, node in RenderTree(root):<\/p>\n
                    print("%s%s" % (pre, node.name))<\/p>\n
                <\/code><\/pre>\n<\/p>\n
                  \n
                1. \u4f7f\u7528networkx<\/code>\u5e93<\/strong><\/li>\n<\/ol>\n
                  networkx<\/code>\u5e93\u66f4\u9002\u5408\u7528\u4e8e\u56fe\u7684\u64cd\u4f5c\uff0c\u4f46\u4e5f\u53ef\u4ee5\u7528\u4e8e\u6811\u3002<\/p>\n<\/p>\n
                  pip install networkx<\/p>\n
                  <\/code><\/pre>\n<\/p>\n
                  import networkx as nx<\/p>\n
                  import matplotlib.pyplot as plt<\/p>\n
                  G = nx.DiGraph()<\/p>\n
                  G.add_edges_from([("Root", "Child1"), ("Root", "Child2"), ("Child1", "Child1.1"), ("Child2", "Child2.1")])<\/p>\n
                  nx.draw(G, with_labels=True, node_size=2000, node_color="lightblue", font_size=10, font_color="black")<\/p>\n
                  plt.show()<\/p>\n
                  <\/code><\/pre>\n<\/p>\n
                  \u4f7f\u7528\u5e93\u7684\u597d\u5904\u662f\u7b80\u5316\u4e86\u6811\u7684\u6784\u5efa\u548c\u64cd\u4f5c\uff0c\u7279\u522b\u662f\u5bf9\u4e8e\u9700\u8981\u590d\u6742\u64cd\u4f5c\u7684\u6811\u7ed3\u6784\u3002<\/p>\n<\/p>\n
                  \u4e94\u3001\u9009\u62e9\u5408\u9002\u7684\u6811\u6784\u9020\u65b9\u6cd5<\/p>\n<\/p>\n
                  \u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u6811\u6784\u9020\u65b9\u6cd5\u975e\u5e38\u91cd\u8981\uff1a<\/p>\n<\/p>\n
                    \n
                  • \u5982\u679c\u9700\u8981\u7075\u6d3b\u6027\u548c\u590d\u6742\u6570\u636e\u652f\u6301<\/strong>\uff0c\u4f7f\u7528\u7c7b\u548c\u6307\u9488\u3002<\/li>\n
                  • \u5982\u679c\u6811\u7ed3\u6784\u7b80\u5355\u4e14\u4e0d\u9700\u8981\u590d\u6742\u64cd\u4f5c<\/strong>\uff0c\u4f7f\u7528\u5b57\u5178\u6216\u5217\u8868\u3002<\/li>\n
                  • \u5982\u679c\u9879\u76ee\u4e2d\u9700\u8981\u5927\u91cf\u6811\u64cd\u4f5c\u6216\u590d\u6742\u7b97\u6cd5<\/strong>\uff0c\u4f7f\u7528\u4e13\u95e8\u7684\u5e93\u5982anytree<\/code>\u6216networkx<\/code>\u3002<\/li>\n<\/ul>\n
                    \u603b\u7ed3\u6765\u8bf4\uff0cPython\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u6784\u9020\u6811\u7ed3\u6784\uff0c\u4ece\u57fa\u672c\u7684\u7c7b\u548c\u6307\u9488\uff0c\u5230\u5b57\u5178\u3001\u5217\u8868\uff0c\u751a\u81f3\u7b2c\u4e09\u65b9\u5e93\u3002\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u53d6\u51b3\u4e8e\u5177\u4f53\u5e94\u7528\u573a\u666f\u7684\u9700\u6c42\u3002\u65e0\u8bba\u662f\u7b80\u5355\u7684\u6811\u7ed3\u6784\u8fd8\u662f\u590d\u6742\u7684\u6811\u64cd\u4f5c\uff0cPython\u90fd\u80fd\u901a\u8fc7\u5176\u7075\u6d3b\u7684\u8bed\u6cd5\u548c\u4e30\u5bcc\u7684\u5e93\u652f\u6301\u6765\u6ee1\u8db3\u9700\u6c42\u3002<\/p>\n<\/p>\n
                    \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
                     \u5982\u4f55\u5728Python\u4e2d\u5b9e\u73b0\u6811\u7684\u6570\u636e\u7ed3\u6784\uff1f<\/strong>
                    \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u7c7b\u6765\u6784\u9020\u6811\u7684\u6570\u636e\u7ed3\u6784\u3002\u901a\u5e38\uff0c\u6811\u7531\u8282\u70b9\u7ec4\u6210\uff0c\u6bcf\u4e2a\u8282\u70b9\u5305\u542b\u6570\u636e\u548c\u6307\u5411\u5176\u5b50\u8282\u70b9\u7684\u6307\u9488\u3002\u60a8\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2a\u8282\u70b9\u7c7b\uff0c\u5305\u542b\u6570\u636e\u548c\u5b50\u8282\u70b9\u5217\u8868\uff0c\u7136\u540e\u521b\u5efa\u6811\u7ed3\u6784\u3002\u4f8b\u5982\uff1a<\/p>\n
                    class TreeNode:\n    def __init__(self, value):\n        self.value = value\n        self.children = []\n\n    def add_child(self, child_node):\n        self.children.append(child_node)\n<\/code><\/pre>\n
                    \u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u60a8\u53ef\u4ee5\u521b\u5efa\u6811\u7684\u8282\u70b9\u5e76\u5c06\u5b50\u8282\u70b9\u6dfb\u52a0\u5230\u7236\u8282\u70b9\u4e2d\u3002<\/p>\n
                    \u5728Python\u4e2d\u5982\u4f55\u904d\u5386\u6811\u7ed3\u6784\uff1f<\/strong>
                    \u6811\u7684\u904d\u5386\u53ef\u4ee5\u4f7f\u7528\u6df1\u5ea6\u4f18\u5148\u641c\u7d22\uff08DFS\uff09\u6216\u5e7f\u5ea6\u4f18\u5148\u641c\u7d22\uff08BFS\uff09\u3002\u6df1\u5ea6\u4f18\u5148\u641c\u7d22\u53ef\u4ee5\u901a\u8fc7\u9012\u5f52\u5b9e\u73b0\uff0c\u800c\u5e7f\u5ea6\u4f18\u5148\u641c\u7d22\u901a\u5e38\u4f7f\u7528\u961f\u5217\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684DFS\u904d\u5386\u793a\u4f8b\uff1a<\/p>\n
                    def dfs(node):\n    if node is not None:\n        print(node.value)\n        for child in node.children:\n            dfs(child)\n<\/code><\/pre>\n
                    \u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u60a8\u53ef\u4ee5\u8bbf\u95ee\u6811\u4e2d\u7684\u6bcf\u4e2a\u8282\u70b9\u5e76\u6267\u884c\u76f8\u5173\u64cd\u4f5c\u3002<\/p>\n
                    \u5982\u4f55\u5728\u6811\u4e2d\u67e5\u627e\u7279\u5b9a\u503c\uff1f<\/strong>
                    \u5728\u6811\u4e2d\u67e5\u627e\u7279\u5b9a\u503c\u901a\u5e38\u4e5f\u53ef\u4ee5\u4f7f\u7528DFS\u6216BFS\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528DFS\u67e5\u627e\u7279\u5b9a\u503c\u7684\u793a\u4f8b\uff1a<\/p>\n
                    def find_value(node, target):\n    if node is None:\n        return False\n    if node.value == target:\n        return True\n    for child in node.children:\n        if find_value(child, target):\n            return True\n    return False\n<\/code><\/pre>\n
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