a = range(0 ,100 , 5)          #创建>=0,<100的连续数字,步长为5

for b in a:

 print(b)

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

90

95

Process finished with exit code 0

text = input("请输入：")

print("您输入的数是：",text)

a = len(text)

print("有",a,"位")

r = range(0,a)

for b in r:

    print(b,text[b])

# 也可以简写

###

text = input("请输入：")

for b in range(0,len(text)):
  print(b,text[b])
###

请输入：jaslkfaj

您输入的数是： jaslkfaj

有 8 位

0 j

1 a

2 s

3 l

4 k

5 f

6 a

7 j

Process finished with exit code 0