description
xrange () function with the usage range is identical, the difference is not generated in an array, but a generator.
grammar
xrange syntax:
xrange(stop)
xrange(start, stop[, step])
Parameter Description:
start: 计数从 start 开始。默认是从 0 开始。例如 xrange(5) 等价于 xrange(0, 5)
stop: 计数到 stop 结束,但不包括 stop。例如:xrange(0, 5) 是 [0, 1, 2, 3, 4] 没有 5
step:步长,默认为1。例如:xrange(0, 5) 等价于 xrange(0, 5, 1)
return value
Return generator.
Examples
The following example shows xrange use:
>>>xrange(8)
xrange(8)
>>> list(xrange(8))
[0, 1, 2, 3, 4, 5, 6, 7]
>>> range (8) # range use
[0, 1, 2, 3, 4, 5, 6, 7]
>>> xrange(3, 5)
xrange(3, 5)
>>> list(xrange(3,5))
[3, 4]
>>> range (3,5) # use range
[3, 4]
>>> xrange(0,6,2)
xrange (0, 6, 2) # 2 steps of
>>> list(xrange(0,6,2))
[0, 2, 4]