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列表格式如下:
data = [
(None,'A'),
('A','A1'),
('A','A1-1'),
('A1','A2'),
('A1-1','A2-3'),
('A2-3','A3-4'),
('A1','A2-2'),
('A2','A3'),
('A2-2','A3-3'),
('A3','A4'),
(None,'B'),
('B','B1'),
('B1','B2'),
('B1','B2-2'),
('B2','B3'),
(None,'C'),
('C','C1'),
]
轉換后的結果為:
data_dic = {
'A': {
'A1': {
'A2':{
'A3':{
'A4':{}
}
},
'A2-2':{
'A3-3':{}
}
}
},
'B':{
'B1':{
'B2':{
'B3':{}
},
'B2-2':{}
}
},
'C':{
'C1':{}
}
}
實現方式代碼如下:
#!/usr/bin/env python
# -*- coding:utf-8 -*-
tree_search(d_dic,parent,son):
k,v_dic d_dic.items():
k == parent: d_dic[k][son] = {}
(,son)
: ()
tree_search(d_dic[k],parent,son)
data_dic = {}
item data:
parent,son = item
parent : data_dic[son] = {}
: tree_search(data_dic,parent,son)
k,v data_dic.items():
(k,v)調試結果:
>>> for item in data: ... parent,son = item ... print parent,"---",son ... None --- A A --- A1 A --- A1-1 A1 --- A2 A1-1 --- A2-3 A2-3 --- A3-4 A1 --- A2-2 A2 --- A3 A2-2 --- A3-3 A3 --- A4 None --- B B --- B1 B1 --- B2 B1 --- B2-2 B2 --- B3 None --- C C --- C1 >>>
輸出結果如下:
('find parent of: ', 'A1')
('find parent of: ', 'A1-1')
going to further layer...
('find parent of: ', 'A2')
going to further layer...
going to further layer...
going to further layer...
('find parent of: ', 'A2-3')
going to further layer...
going to further layer...
going to further layer...
going to further layer...
('find parent of: ', 'A3-4')
going to further layer...
('find parent of: ', 'A2-2')
going to further layer...
going to further layer...
('find parent of: ', 'A3')
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
('find parent of: ', 'A3-3')
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
('find parent of: ', 'A4')
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
('find parent of: ', 'B1')
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
('find parent of: ', 'B2')
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
('find parent of: ', 'B2-2')
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
('find parent of: ', 'B3')
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
going to further layer...
('find parent of: ', 'C1')
('A', {'A1': {'A2': {'A3': {'A4': {}}}, 'A2-2': {'A3-3': {}}}, 'A1-1': {'A2-3': {'A3-4': {}}}})
('C', {'C1': {}})
('B', {'B1': {'B2-2': {}, 'B2': {'B3': {}}}})
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