What does python range mean?

Detailed usage of python range() function

Function prototype: range(start, end, scan):

Parameter meaning: start: counting starts from start. The default is to start from 0. For example, range (5) is equivalent to range (0, 5);

end: counting to the end of end, but not including end. For example: range (0, 5) is [0, 1, 2, 3 , 4] No 5

scan: The distance between each jump, the default is 1. For example: range(0, 5) is equivalent to range(0, 5, 1)

Python
>>> for i in range(1,5):   
print(i)
1
2
3
4
>>> for i in range(5):    
print(i)
0
1
2
3
4
>>> for i in range(0,5,2):    
print(i)
0
2
4
>>> for i in range(0,-5,-2):
print(i)
0
-2
-4

Python video tutorial》

The difference between python2 and python3:

Python3

print(range(1,5))
range(1, 5)
# 正确打印方法
list(range(1,5))
[1, 2, 3, 4]

Python2

>>> range(1,5)
[1, 2, 3, 4]

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