过滤2个字典json Python

dict1 = {'a': 1, 'b': 2}
dict2 = {'b': 3, 'c': 4}

dict1.update(dict2)
print(dict1)  # 输出: {'a': 1, 'b': 3, 'c': 4}

dict1 = {'a': 1, 'b': 2}
dict2 = {'b': 3, 'c': 4}

merged_dict = {**dict1, **dict2}
print(merged_dict)  # 输出: {'a': 1, 'b': 3, 'c': 4}

dict1 = {'a': 1, 'b': 2}
dict2 = {'b': 3, 'c': 4}

merged_dict = {k: v for d in [dict1, dict2] for k, v in d.items()}
print(merged_dict)  # 输出: {'a': 1, 'b': 3, 'c': 4}

from collections import ChainMap

dict1 = {'a': 1, 'b': 2}
dict2 = {'b': 3, 'c': 4}

merged_dict = ChainMap(dict1, dict2)
print(merged_dict)  # 输出: ChainMap({'a': 1, 'b': 2}, {'b': 3, 'c': 4})
print(dict(merged_dict))  # 转换为字典: {'a': 1, 'b': 2, 'c': 4}

# 示例：合并两个JSON对象（字典）
import json

json1 = '{"a": 1, "b": 2}'
json2 = '{"b": 3, "c": 4}'

dict1 = json.loads(json1)
dict2 = json.loads(json2)

# 合并字典
merged_dict = {**dict1, **dict2}

# 转换回JSON字符串
merged_json = json.dumps(merged_dict)
print(merged_json)  # 输出: {"a": 1, "b": 3, "c": 4}