# 題:新建一個字典項,刪除以"豬"字元開頭的項.並輸出字典結果
a = tuple(input("輸入變數a"))
dic = {
       a: "孫悟空",
       "豬八戒": "豬1",
       "豬悟能": "豬2",
       "沙和尚": "仙",
       "蜘蛛精": "蜘蛛",
       "唐長老": "人",
       "豬大哥": "人",
       }
print(dic)
# print(type(dic))
# dic.pop('孫悟空')
# print(dic)  列表的每一個元素都是一個字串
# lst = list()  # 空列表
 

# lst.append("孫悟空")
# lst1 = ["孫悟空"]  # 空列表
# print(lst[0])
# print(lst1[0])
# print(type(lst[0]), type(lst1[0]))
# 檢視字典命名是否正確
# t = []
# for key1 in dic:
#     if dic[key1].startswith("豬"):
#         print(dic[key1])
#         t.append(key1)
# # RuntimeError: dictionary changed size during iteration
#
 
 # 錯誤,字典改變大小,在迭代區間
#
# print(t)  # 檢視列表裡面有些什麼
# # 迴圈臨時列表t,以t中的元素作為字典的key值進行刪除
# for t1 in t:
#     dic.pop(t1)
# print(dic)
# for key in dic:
#     #    dic[key]直接這樣寫,這是一個變數不行,變數===變數才行,如下
#     a = dic[key]
#     print(a)
# 拿到字典中的value值.
# s = {"1", "你好", "3"}
# s1 = set()
# print("s的資料型別", type(s))  # , "\n", "s1的資料型別", type(s1))
 

# # print(s)
# i = 0
# for s1 in dic:
#     i = i + 1
#     # dic[s1]
#     print(dic)
# print("s拿出來的的資料型別", i, "項", type(s1))