python如何输出list

list_a =[1,2,3,313,1]

for i in range(len(list_a)):

    print(list_a[i])

1

2

3

313

1

for i in list_a:

    print(i)

1

2

3

313

1

for i，j in enumerate(list_a)：

    print("i")

    print("j")

0

1

1

2

2

3

3

313

4

1