利用Python根据下面提示建一个字典结构，并访问遍历它。 pizza字典包括：大小是中等尺寸的的，口味是奶酪味的，类型是美式的，数量是2个，运输方式是送货上门，地址是济南大学你们宿舍.... 自己发挥并构造字典吧！ 要求： 练习访问字典pizza中的元素: （1）输出字典pizza （2）使用键输出值； （3）使用for语句遍历； （4）使用get方法访问 （5）访问并输出所有键值对、所有键、所有值 （6）添加价格为39进pizza

好的，我已经明白您的要求了。下面是Python代码实现：

# 利用Python创建一个字典结构
pizza = {
    "size": "medium",
    "flavor": "cheese",
    "type": "American",
    "quantity": 2,
    "delivery": "home delivery",
    "address": "the dormitory of Jinan University"
}

# 输出整个字典
print("The contents of the pizza dictionary are:")
print(pizza)

# 使用键输出值
print("The value of the 'size' key is:", pizza["size"])
print("The value of the 'flavor' key is:", pizza["flavor"])
print("The value of the 'type' key is:", pizza["type"])
print("The value of the 'quantity' key is:", pizza["quantity"])
print("The value of the 'delivery' key is:", pizza["delivery"])
print("The value of the 'address' key is:", pizza["address"])

# 使用for语句遍历
print("All key-value pairs in the pizza dictionary are:")
for key, value in pizza.items():
    print(key, ":", value)

# 使用get方法访问
print("The value of the 'flavor' key is:", pizza.get("flavor"))

# 访问并输出所有键值对、所有键、所有值
print("All key-value pairs in the pizza dictionary are:")
for item in pizza.items():
    print(item)

print("All keys in the pizza dictionary are:")
for key in pizza.keys():
    print(key)

print("All values in the pizza dictionary are:")
for value in pizza.values():
    print(value)

# 添加价格为39进pizza
pizza["price"] = 39
print("The contents of the updated pizza dictionary are:")
print(pizza)

运行结果如下：

The contents of the pizza dictionary are:
{'size': 'medium', 'flavor': 'cheese', 'type': 'American', 'quantity': 2, 'delivery': 'home delivery', 'address': 'the dormitory of Jinan University'}
The value of the 'size' key is: medium
The value of the 'flavor' key is: cheese
The value of the 'type' key is: American
The value of the 'quantity' key is: 2
The value of the 'delivery' key is: home delivery
The value of the 'address' key is: the dormitory of Jinan University
All key-value pairs in the pizza dictionary are:
size : medium
flavor : cheese
type : American
quantity : 2
delivery : home delivery
address : the dormitory of Jinan University
The value of the 'flavor' key is: cheese
All key-value pairs in the pizza dictionary are:
('size', 'medium')
('flavor', 'cheese')
('type', 'American')
('quantity', 2)
('delivery', 'home delivery')
('address', 'the dormitory of Jinan University')
All keys in the pizza dictionary are:
size
flavor
type
quantity
delivery
address
All values in the pizza dictionary are:
medium
cheese
American
2
home delivery
the dormitory of Jinan University
The contents of the updated pizza dictionary are:
{'size': 'medium', 'flavor': 'cheese', 'type': 'American', 'quantity': 2, 'delivery': 'home delivery', 'address': 'the dormitory of Jinan University', 'price': 39}

希望我的回答能够帮助到您。如果您还有其他问题或需求，欢迎随时提出。