[{"createTime":1735734952000,"id":1,"img":"hwy_ms_500_252.jpeg","link":"https://activity.huaweicloud.com/cps.html?fromacct=261f35b6-af54-4511-a2ca-910fa15905d1&utm_source=V1g3MDY4NTY=&utm_medium=cps&utm_campaign=201905","name":"华为云秒杀","status":9,"txt":"华为云38元秒杀","type":1,"updateTime":1735747411000,"userId":3},{"createTime":1736173885000,"id":2,"img":"txy_480_300.png","link":"https://cloud.tencent.com/act/cps/redirect?redirect=1077&cps_key=edb15096bfff75effaaa8c8bb66138bd&from=console","name":"腾讯云秒杀","status":9,"txt":"腾讯云限量秒杀","type":1,"updateTime":1736173885000,"userId":3},{"createTime":1736177492000,"id":3,"img":"aly_251_140.png","link":"https://www.aliyun.com/minisite/goods?userCode=pwp8kmv3","memo":"","name":"阿里云","status":9,"txt":"阿里云2折起","type":1,"updateTime":1736177492000,"userId":3},{"createTime":1735660800000,"id":4,"img":"vultr_560_300.png","link":"https://www.vultr.com/?ref=9603742-8H","name":"Vultr","status":9,"txt":"Vultr送$100","type":1,"updateTime":1735660800000,"userId":3},{"createTime":1735660800000,"id":5,"img":"jdy_663_320.jpg","link":"https://3.cn/2ay1-e5t","name":"京东云","status":9,"txt":"京东云特惠专区","type":1,"updateTime":1735660800000,"userId":3},{"createTime":1735660800000,"id":6,"img":"new_ads.png","link":"https://www.iodraw.com/ads","name":"发布广告","status":9,"txt":"发布广告","type":1,"updateTime":1735660800000,"userId":3},{"createTime":1735660800000,"id":7,"img":"yun_910_50.png","link":"https://activity.huaweicloud.com/discount_area_v5/index.html?fromacct=261f35b6-af54-4511-a2ca-910fa15905d1&utm_source=aXhpYW95YW5nOA===&utm_medium=cps&utm_campaign=201905","name":"底部","status":9,"txt":"高性能云服务器2折起","type":2,"updateTime":1735660800000,"userId":3}]
在字典里添加新建可能导致扩容，导致散列表中键的次序变化，不要在遍历字典的同时进行字典修改。
1.添加：
如果键已存在，则覆盖新的键值对，如果键不存在，则新增键值对
a={'name':'liming','age':18,'job':'teacher'}
a["sex"]='man'
a['age']=20==>
a={'name':'liming','age':20,'job':'teacher','sex':'man'}
2.使用update()将新字典中所有键值对全部添加到旧字典对象上，若key有重复，则直接覆盖。
a={'name':'liming','age':18,'job':'teacher'}
b={'name':'lisi','addess':'dddd','sex':'man'}b
a.update(b)
a={'name':'lisi','age':18,'job':'teacher','addess':'dddd','sex':'man'}
3.删除del()；或者clear()删除所有键值对；pop()删除指定键值对，并返回对应的值对象
a={'name':'liming','age':18,'job':'teacher'}
del(a['name'])
b=a.pop('age')==>b=18
a.clear()==>a=[]
4.popitem():随机删除和返回该键值对。字典是无序可变序列，因此没有第一个元素和最后一个元素的概念，popitem()弹出随机的项。
a.popitem()
('age',18)
