找到一种解析多类型JSON字段的方法

import json

def parse_json(json_str):
    data = json.loads(json_str)
    for key, value in data.items():
        if isinstance(value, str):
            # 字符串类型的字段
            print(f"{key}: {value}")
        elif isinstance(value, int) or isinstance(value, float):
            # 数字类型的字段
            print(f"{key}: {value}")
        elif isinstance(value, bool):
            # 布尔类型的字段
            print(f"{key}: {value}")
        elif isinstance(value, list):
            # 数组类型的字段
            print(f"{key}:")
            for item in value:
                print(f"  - {item}")
        elif isinstance(value, dict):
            # 对象类型的字段
            print(f"{key}:")
            for sub_key, sub_value in value.items():
                print(f"  {sub_key}: {sub_value}")
        else:
            # 其他类型的字段
            print(f"{key}: {value}")

# 示例JSON字符串
json_str = '''
{
  "name": "John",
  "age": 30,
  "is_student": false,
  "hobbies": ["reading", "coding", "swimming"],
  "address": {
    "city": "New York",
    "country": "USA"
  }
}
'''

parse_json(json_str)