使用python从JSON文件中提取部分数据

Question

我一直在尝试使用python从JSON文件中提取某些数据。我想从我的json创建一个数组，其中包含一些条目，如下所示

[{"Device Name":"abc", "Device Caps":["a1", "b1", "c1"]},
{"Device Name":"def", "Device Caps":["a2", "b2", "c2"]},
{"Device Name":"ghi", "Device Caps":["a3", "b3", "c3"]},
{"Device Name":"jkl", "Device Caps":["a4", "b4", "c4"]}] 

我需要输出为     [ “A1”， “A2”， “A3”， “A4”]

Answer 1

如果这确实是您的输入文件，那么以下代码将生成您想要的输出：

import json

with open("input.json") as input_file:
    data = json.load(input_file)
data = [d["Device Caps"][0] for d in data]

print(data)