使用 sort_keys 参数指定结果是否应该排序

import json
 
x = {
  "name": "Bill",
  "age": 63,
  "married": True,
  "divorced": False,
  "children": ("Jennifer","Rory","Phoebe"),
  "pets": None,
  "cars": [
    {"model": "Porsche", "mpg": 38.2},
    {"model": "BMW M5", "mpg": 26.9}
  ]
}
 
# sort the result alphabetically by keys:
print(json.dumps(x, indent=4, sort_keys=True))