超神罗天征
# -*- coding:utf-8 -*-
__author__ = 'kiven'
'''实现python range函数'''
def my_range(start, stop=None, step=None):
result = []
s = 1 # 步长
if not step is None:
s = step
if not stop is None:
while True:
if start < stop:
result.append(start)
start += s
else:
break
else:
stop,start = start,0
while True:
if start < stop:
result.append(start)
start += s
else:
break
return result
print my_range(1,10,4)
print range(1,10,4)
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