python dict操作记录

操作

字典内元素的个数

len(dic)

判断字典中是否存在某个键

dic={"domain": "csdn.net", "expiry": 1561747176.199094, "httpOnly": false, "name": "dc_tos", "path": "/", "secure": false, "value": "pttcq0"}
if 'expiry' in dic:
	print("存在")

https://www.cnblogs.com/xmnote/p/9334880.html

删除键值对

my_dict = {"name":"123", "age":123}

del my_dict["name"]

https://www.cnblogs.com/lowmanisbusy/p/9142199.html