列表推导式

list = [i for i in range(10)]
print(list)

list1 = [(x,y) for x in range(2,5) for y in range(3,6)]
print(list1)

list2 = [ i for i in range(1,10) if i % 2] #偶数模余完是0 是false 所以不会返回偶数
print(list2)

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
[(2, 3), (2, 4), (2, 5), (3, 3), (3, 4), (3, 5), (4, 3), (4, 4), (4, 5)]
[1, 3, 5, 7, 9]