python生成树
2022/6/7 1:21:53
本文主要是介绍python生成树,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
def convert2tree(data): result = [] obj = {} for x in data: obj[x.get("id", "")] = x for x in data: parent_id = x.get("parent_id") if parent_id: parent = obj.get(parent_id, {}) if parent: if not parent.get("children"): parent["children"] = [] if not x.get("children"): x["children"] = [] parent["children"].append(x) else: if not x.get("children"): x["children"] = [] result.append(x) else: if not x.get("children"): x["children"] = [] result.append(x) return result resources = [{"id": 7, "name": "test1", "parent_id": 2}, {"id": 2, "name": "test2", "parent_id": None}, {"id": "9", "name": "test3", "parent_id": 2}, {"id": 12, "name": "test4", "parent_id": 7}, {"id": 8, "name": "test5", "parent_id": 2}] print(convert2tree(resources))
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