Python 如何读取字典的所有键-值对

#创建一个存储一个学生的信息，通过遍历可以取出所有信息
student={'name':'xiaoming','age':11,'school':'tsinghua'}
for key,value in student.items():
    print(key+':'+str(value))

#创建一个人和对应喜欢水果的字典
people={'lifei':'apple','fanming':'peach','gaolan':'banana','hanmeimie':'peach'}
for name in people.keys():
    print(name)

#创建一个人和对应喜欢水果的字典
people={'lifei':'apple','fanming':'peach','gaolan':'banana','hanmeimie':'peach'}
for name in sorted(people.keys()):
    print(name)

#创建一个人和对应喜欢水果的字典
people={'lifei':'apple','fanming':'peach','gaolan':'banana','hanmeimie':'peach'}
for fruit in people.values():
    print(fruit)

#创建一个人和对应喜欢水果的字典
people={'lifei':'apple','fanming':'peach','gaolan':'banana','hanmeimie':'peach'}
for fruit in set(people.values()):
    print(fruit)

#创建一个人和对应喜欢水果的字典
people_fruit={'lifei':'apple','fanming':'peach','gaolan':'banana','hanmeimei':'peach'}
people=['lilei','caiming','hanmeimei','gaolan']
for name in people:
    if name in people_fruit.keys():
        print('您还需要其他的水果吗？')
    elif name not in people_fruit.keys():
        print('你能告诉我您喜欢的一种水果吗？')

my_dict = dict(name="lowman", age=45, money=998, hourse=None)

my_dict = dict(name="lowman", age=45, money=998, hourse=None)
key_list = my_dict.keys()
print(list(key_list))

item = {"name": "lowman", "age": 27}
data = set(item)
print(data)

my_dict = dict(name="lowman", age=45, money=998, hourse=None)
value_list = my_dict.values() 
print(list(value_list))

for item in my_dict:
    print(item)

for key, value in my_dict.items():
　　　　print(key,value)
　　for item in my_dict.items()：
　　　　print(item) # 这样取值的话,返回的就是一个元组,里面包含两个元素,第一个是键,第二个为值　

my_dict = {"name":"lowman", "age":12}
del my_dict["name"]