How to use the range() function in python

How to use the range() function in python

The range() function in python can create a list of integers, Generally used in for loops.

range() function syntax:

range(start,stop[,step])

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Parameter description:

star: Counting starts from star. The default is to start from 0.

stop: Counting ends at stop, but does not include stop.

step: Step Long, the default is 1.

Example:

>>>range(10)        # 从 0 开始到 10,没有10
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> range(1, 11)     # 从 1 开始到 11,没有11
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
>>> range(0, 30, 5)  # 步长为 5
[0, 5, 10, 15, 20, 25]
>>> range(0, 10, 3)  # 步长为 3
[0, 3, 6, 9]
>>> range(0, -10, -1) # 负数
[0, -1, -2, -3, -4, -5, -6, -7, -8, -9]
>>> range(0)
[]
>>> range(1, 0)
[]

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