Python当只有两个键可用时如何从字典中获取键值对的范围

my_dict = {'key1': 'value1', 'key2': 'value2'}
for key, value in my_dict.items():
    # 处理键值对
    print(key, value)

my_dict = {'key1': 'value1', 'key2': 'value2'}
key_value_list = [(key, value) for key, value in my_dict.items()]
# 处理键值对列表
print(key_value_list)

my_dict = {'key1': 'value1', 'key2': 'value2'}
keys = list(my_dict.keys())
# 处理第一个键值对
key1 = keys[0]
value1 = my_dict[key1]
# 处理第二个键值对
key2 = keys[1]
value2 = my_dict[key2]