用我自己的数据逐个替换JSON对象中的所有键

import json

def replace_keys(json_obj, replacement_data):
    if isinstance(json_obj, dict):
        for key in list(json_obj.keys()):
            new_key = replacement_data.get(key, key)
            json_obj[new_key] = json_obj.pop(key)
            replace_keys(json_obj[new_key], replacement_data)
    elif isinstance(json_obj, list):
        for item in json_obj:
            replace_keys(item, replacement_data)

# 示例JSON对象
json_str = '''
{
  "name": "John",
  "age": 30,
  "city": "New York"
}
'''

# 将JSON字符串解析为Python对象
json_obj = json.loads(json_str)

# 替换键的数据
replacement_data = {
    "name": "MyName",
    "age": "MyAge",
    "city": "MyCity"
}

# 替换JSON对象中的键
replace_keys(json_obj, replacement_data)

# 将替换后的JSON对象转换为字符串
updated_json_str = json.dumps(json_obj)

print(updated_json_str)