Python:合并2个字典，如果key为空则添加0

def merge_dicts(dict1, dict2):
    result_dict = dict1.copy()
    for key, value in dict2.items():
        if key not in result_dict:
            if key == "":
                result_dict[key] = 0
            else:
                result_dict[key] = value
    return result_dict

dict1 = {"a": 1, "b": 2}
dict2 = {"b": 3, "c": 4, "": 5}

merged_dict = merge_dicts(dict1, dict2)
print(merged_dict)

{'a': 1, 'b': 2, 'c': 4, '': 5}