我有一棵树,例如看起来像这样
(0, 1)
(2, 3)
(4, 5)
(6, 7)
(6, 3)
(4, 1)
(6, 3)
当我用这种方法打印时:
def deep_print(self, d=0):
if self == None:
return
print(" "*d, self.value)
for child in self.children:
child.deep_print(d + 1)
现在我想要一个方法,它给我一个所有可能的叶子方法的列表。所以在这种情况下,输出应该是:
[[(0,1),(2,3),(4,5),(6,7)], [(0,1),(2,3),(4,5),(6,3)], [(0,1),(2,3),(4,1),(6,3)]]
编辑:
这是我的树的结构
class Tree:
def __init__(self, value, d = 0):
self.value = value
self.children = []
def add_child(self, child):
self.children.append(child)
def deep_print(self, d=0):
if self == None:
return
print(" "*d, self.value)
for child in self.children:
child.deep_print(d + 1)
最佳答案
遵循以下几行的递归方法应该可以工作:
def paths(self):
if not self.children:
return [[self.value]] # one path: only contains self.value
paths = []
for child in self.children:
for path in child.paths():
paths.append([self.value] + path)
return paths
关于Python:获取树中所有可能路径的列表?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/51466610/