Python-字典

#创建字典
info = {
    'stu1101': "TengLan Wu",
    'stu1102': "LongZe Luola",
    'stu1103': "XiaoZe Maliya",
}
# 2、查看字典

# print(info)
# print(info["stu1101"])

#2.1、字典中查找，先判断再查找
print("stu1101" in  info)
#返回值为true
print("stu1104"  in info)
#返回值为false

#2.2 直接查找
print(info.get("stu1101"))
#返回TengLan Wu
print(info.get("stu1104"))
#返回None
print(info.get("stu1104"),"返回自定义的内容，HELLO WORLD")
#返回None 返回自定义的内容，HELLO WORLD


#3、字典增加
info["stu1104"] = ["cwb",34,"Hyperviso"]
print(info)
#返回{'stu1101': 'TengLan Wu', 'stu1102': 'LongZe Luola', 'stu1103': 'XiaoZe Maliya', 'stu1104': ['cwb', 34, 'Hyperviso']}
print(info.get("stu1104"))
#返回['cwb', 34, 'Hyperviso']
info["00312885"] = {"name":"cwb","age":33,"hobbie":"Hyper"}
#print(info.get("00312885"))
#返回{'name': 'cwb', 'age': 33, 'hobbie': 'Hyper'}
print(info["00312885"] ["age"])