如何在索引 python 中獲取字典鍵

Question

我有一個格式像這樣的數據

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

如果我想得到'x'或'y'怎么辦？

我只是嘗試data_lists[{'x'}] ，但出現錯誤('list indices must be integers or slices, not set',)

也與data_lists[{[0]}] ，錯誤說("unhashable type: 'list'",)

感謝你們對我的幫助

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'])