【Python】第二章2.11-2.14 / 2.20练习题

fruits = ('apple', 'pear', 'grapefruit', 'pineapple', 'avocado')
print(f'{fruits}\nfruits元组的个数有{len(fruits)}')
for i, fruit in enumerate(fruits):
    if fruit[0] == 'a':  # 检查是否以'a'开头
        print(f"fruits元组以a开头的元素有{fruit},他的序号是:{i}.")