小脚本跑一下看看时间。
#!/usr/bin/env python
#-*- coding:utf-8 -*-
#filename index.py
‘‘‘
Just For judge
‘‘‘
import time
def compare():
starttime = time.clock()
arraylist = range(20000000)
for i in range(len(arraylist)):
endtime = time.clock()
print ‘Time used: ‘,(endtime-starttime)
def compa():
starttime = time.clock()
arraylist = xrange(20000000)
for i in arraylist:
endtime = time.clock()
print ‘Time used: ‘,(endtime-starttime)
compare()
compa()
原文:http://www.cnblogs.com/yangshine/p/4919155.html