class JsonQuery(object): ???def __init__(self, data): ???????super(JsonQuery, self).__init__() ???????self.data = data ???def get(self, path, default=None): ???????if self.data is None or path == ‘‘: ???????????return self.data ???????query_keys = path.split("/") ???????key = query_keys[0] ???????left_path = ‘/‘.join(query_keys[1:]) ???????if isinstance(self.data, list): ???????????return [JsonQuery(v).get(path, default) if v else None for v in self.data] ???????else: ???????????return JsonQuery(dict.get(self.data, key, default)).get(left_path, default)运行效果：
d = {"main":[{"x":[{"x1":1,"x2":2},{"x1":11,"x2": 12}],"y":2},{"x":[{"x1":3,"x2":4}],"y":4}]}>>> info = JsonQuery(d)>>> info.get(‘main‘)[{‘y‘: 2, ‘x‘: [{‘x2‘: 2, ‘x1‘: 1}, {‘x2‘: 12, ‘x1‘: 11}]}, {‘y‘: 4, ‘x‘: [{‘x2‘: 4, ‘x1‘: 3}]}]>>> info.get(‘main/x‘)[[{‘x2‘: 2, ‘x1‘: 1}, {‘x2‘: 12, ‘x1‘: 11}], [{‘x2‘: 4, ‘x1‘: 3}]]>>> info.get(‘main/x/x1‘)[[1, 11], [3]]JsonQuery
原文地址：https://www.cnblogs.com/tuzkee/p/9564625.html