如何使用嵌套字典循环字典

def iterate_nested_dict(dictionary):
    for key, value in dictionary.items():
        if isinstance(value, dict):
            iterate_nested_dict(value)
        else:
            print(f"Key: {key}, Value: {value}")

# 示例字典
nested_dict = {
    "key1": "value1",
    "key2": {
        "nested_key1": "nested_value1",
        "nested_key2": {
            "nested_nested_key1": "nested_nested_value1",
            "nested_nested_key2": "nested_nested_value2"
        }
    },
    "key3": "value3"
}

# 调用函数进行循环遍历
iterate_nested_dict(nested_dict)