无法将字典中的值存储在变量中

my_dict = {"key1": "value1", "key2": "value2"}
value = my_dict["key1"]
print(value)  # 输出：value1

my_dict = {"key1": "value1", "key2": "value2"}
value = my_dict.get("key1")
print(value)  # 输出：value1

my_dict = {"key1": "value1", "key2": "value2"}
keys = my_dict.keys()
values = my_dict.values()
items = my_dict.items()
print(keys)  # 输出：dict_keys(['key1', 'key2'])
print(values)  # 输出：dict_values(['value1', 'value2'])
print(items)  # 输出：dict_items([('key1', 'value1'), ('key2', 'value2')])