#dictionary 字典类型 {}
my_phone = {"iphone" : 1000, "Sumsang" : 900}
#取出键中的值 用[]
iphone_price = my_phone["iphone"]
print(iphone_price)
#更改键值
my_phone["iphone"] = 4000
print(my_phone["iphone"])
print("Iphone price :" + str(my_phone["iphone"]))
my_dic = {1 : "wrf1", 2 : "wrf2", 3 : "wrf3"}
str1 = my_dic[1]
my_phone.clear()
print(my_phone)