如何移动子字典到另一个字典？

# 原字典
original_dict = {
    "key1": "value1",
    "key2": {
        "subkey1": "subvalue1",
        "subkey2": "subvalue2"
    },
    "key3": "value3"
}

# 目标字典
target_dict = {
    "target_key": "target_value"
}

# 移动子字典到目标字典
sub_dict = original_dict.pop("key2")  # 从原字典中移除子字典并保存到临时变量中
target_dict.update(sub_dict)  # 将子字典添加到目标字典中

# 检查目标字典
print(target_dict)

{
    "target_key": "target_value",
    "subkey1": "subvalue1",
    "subkey2": "subvalue2"
}