python 获取毫秒数,计算调用时长的方法

import datetime
import time
t1 = datetime.datetime.now().microsecond
t3 = time.mktime(datetime.datetime.now().timetuple()
//这里调用你的方法

t2 = datetime.datetime.now().microsecond
t4 = time.mktime(datetime.datetime.now().timetuple())
strTime = 'funtion time use:%dms' % ((t4 - t3) * 1000 + (t2 - t1) / 1000)