如何在索引 python 中获取字典键

Question

我有一个格式像这样的数据

data_lists = [{'x': '1', 'y': '2', 'z': 3}]

如果我想得到'x'或'y'怎么办？

我只是尝试data_lists[{'x'}] ，但出现错误('list indices must be integers or slices, not set',)

也与data_lists[{[0]}] ，错误说("unhashable type: 'list'",)

感谢你们对我的帮助

Answer 1

data_lists = [{'x': '1', 'y': '2', 'z': 3}]
#first, iterate over the list items, which in this case there is only one
for i in data_lists:
    #then, select thee key you want
    print(i['y'])