#!/usr/bin/env python
# coding=utf-8
import os
import sys
def set_list():
a = set()
a.add((0, 1))
a.add((1, 2))
a.add((0, 4))
a.add((2, 3))
a.add((1, 5))
a.add((3, 6))
a.add((4, 7))
a.add((5, 8))
a.add((7, 71))
a.add((71, 78))
print(a)
# -----------------------------方案1
b = dict()
for i, v in a:
childrenid=0
if i != 0:
parentid = get_first_parentid(a, i)
childrenid = v
if childrenid != 0:
if parentid in b:
b[parentid].append(childrenid)
else:
b.fromkeys('%s' % parentid, parentid)
b[parentid] = []
b[parentid].append(childrenid)
print(b)#{1: [2, 5, 3, 6, 8], 4: [7, 78, 71]}
def get_first_parentid(data, parentid):
for i, v in data:
if v == parentid:
if i == 0:
return v
else:
return get_first_parentid(data, i)
if __name__ == '__main__':
set_list()
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