JSON Python 读取/写入 json 文件问题

Question

代码：

import json

numbers = [2, 3, 5, 7, 11, 13]
letters = ["a", "b", "c", "d"]
filename = 'numbers.json'

with open(filename, 'w') as f_obj:
    json.dump(numbers, f_obj)
    json.dump(letters, f_obj)


with open(filename) as f_obj:
    numbers = json.load(f_obj)
    letters = json.load(f_obj)

print(numbers)
print(letters)

我希望能够读取已添加到 json 文件的多个列表，并将它们设置为单独的列表，以便以后使用。

我不介意必须在 json 文件中的每个列表之间添加一个新行，然后以行格式读取它。

Answer 1

为什么不将它们存储在全局字典中？

import json

numbers = [2, 3, 5, 7, 11, 13]
letters = ["a", "b", "c", "d"]
filename = 'numbers.json'

val={'numbers': numbers, 'letters':letters}

with open(filename, 'w') as f_obj:
    json.dump(val, f_obj)


with open(filename) as f_obj:
    val = json.load(f_obj)
    numbers = val['numbers']
    letters = val['letters']

print(numbers)
print(letters)