有没有一种方法可以迭代字典并在while循环中使用它？

my_dict = {"key1": "value1", "key2": "value2", "key3": "value3"}

# 使用items()方法迭代字典的键值对
for key, value in my_dict.items():
    print(key, value)

# 在while循环中使用字典的items()方法迭代
iterator = iter(my_dict.items())
while True:
    try:
        key, value = next(iterator)
        print(key, value)
    except StopIteration:
        break