25 - 将循环产生的列表变成产生器

# 如果列表是通过 for 循环产生的，只需要将方括号变成圆括号，就会将列表变成一个产生器


a = [i for i in range(10)]
print(a)
print(type(a))

b = (i for i in range(10))
print(b)
print(type(b))

for i in a:
    print(i)
    
for i in b:
    print(i)
    
    
x = (1, 2, 3, 4)
print(type(x))

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

<class 'list'>

<generator object <genexpr> at 0x000001EE46C247C8>

<class 'generator'>

0

1

2

3

4

5

6

7

8

9

0

1

2

3

4

5

6

7

8

9

<class 'tuple'>