元组的基本使用

t = (1, 2, 3)
print(t)

统计元组元素出现的次数

t = (11, 11, 22, 22, 33, 33, 33, 33, 33)
print(t, type(t))print(t.count(33))

元组的遍历

t = (1, 2, 3)for i in t:print(i)print("-" * 33)
for i in range(len(t)):print(t[i])print("-" * 33)
for i in range(len(t) - 1, -1, -1):print(t[i])

元组和列表的相互转换

arr = [1, 2, 3]
print(arr, type(arr))t = tuple(arr)
print(t, type(t))arr2 = list(t)
print(arr2, type(arr2))

元组生成式

t = tuple(i for i in range(20))
print(t)t = tuple(i**2 for i in range(20))
print(t)t = tuple(i**2 if i % 2 == 0 else i ** 3 for i in range(20))
print(t)t = tuple(i for i in range(20) if i % 2 == 0)
print(t)