########################################################################
# Tuple, elements cannot be modified, added or deleted
# tuple
# tu = (11,22,33,44)
# tu.count(22), get the number of times the specified element appears in the tuple
# tu.index (twenty two)
####################################### Dark Grey Magic######## #################
# 1. Writing format
# tu = (111,"alex",(11,22),[(33,44)],True,33, 44,)
# When writing a tuple, it is recommended to add it at the end,
# Elements cannot be modified, added or deleted
# 2. Index
# v = tu[0]
# print(v)
# 3. Slice
# v = tu[0:2]
# print(v)
# 4. Can be for looped, iterable object
# for item in tu:
# print(item)
# 5. 转换
# s = "asdfasdf0"
# li = ["asdf","asdfasdf"]
# tu = ("asdf","asdf")
# v = tuple(s)
# print(v)
# v = tuple(li)
# print(v)
# v = list (tu)
# print (v)
# v = "_".join(tu)
# print(v)
# li = ["asdf","asdfasdf"]
# li.extend((11,22,33,))
# print(li)
# 6. The first-level elements of the tuple cannot be modified/deleted/added
# tu = (111,"alex",(11,22),[(33,44)],True,33,44,)
# tuple, in order.
# v = tu[3][0][0]
# print(v)
# v=tu[3]
# print(v)
# tu[3][0] = 567
# print(tu)