tuple   # 元組   ()

tu = (1,)             # 括號裡如果只有一個型別就是此型別
print(type(tu))       #面試題

lst = [1]
print(type(lst))       #只要是用[]都是列表

tu = (1,2,3)
tu1 = (5,) + tu          # 合併
print(tu1)

tu = (1,2,3,4,5,4,3,4,)

print(tu.index(3))
print(tu.count(4))

lst = [1,2,3,5]
print(lst[0:3])


print(tu[:4])

for i in tu:
    print(i)
 


元組巢狀



tu[-2].append(7)
print(id(tu[-2]))

print(tu)

tu[3] = 'b'
print(tu)


字串和數字是不可變的資料型別

a = 'alex'
print(id(a))
a = 'b'
id()    # 檢視記憶體地址
print(id(a))