python元组+字典

#案例
#访问元组
# aTuple=(23,35,56,34,11,21)
#下标为2
# print(aTuple[2])
#索引值不存在
# print(aTuple[20])

#查询个数
# aTuple=('b','c','d','e','f','g')
# print(aTuple.count('d'))
#查询索引
# print(aTuple.index('d',0,4))
#无对应元素
# print(aTuple.index('d',0,1))
#修改数据(不能修改)
# aTuple[1]=23

#列表转换元组
# aa=[23,34,45,56,67]
# tuple(aa)
# print(aa)
#元祖转换列表
# aTuple=('b','c','d','e','f','g')
# a=list(aTuple)
# print(a)
#for循环
# for i in aTuple:
#     print(i)
#while循环
# i=0
# while i < len(aTuple):
#     print(aTuple[i])
#     i=i+1

#根据键访问值
# info={"name":"jack","age":12,"sex":"男"}
# print(info["name"])
#我们不确定字典中是否存在某个键而又想获取其值时
# print(info.get("name"))

# name=[{"name":"jack","age":13},{"score":50}]
# print(name[0]["name"])

#修改元素
# info={"name":"jack","age":12,"sex":"男"}
# info["age"] = 14
# print(info)
#添加元素
# info["gender"]="属鸡"
# print(info)
#删除元素
# del info["name"]
# print(info)
#清空
# info.clear()
# print(info)
#取出字典中的key
# for i in info.keys():
#     print(i)
#取出字典中的key和value
# for i in info.keys():
#     print(i,info[i])