python编写的用于测试网站访问速率的代码片段详解编程语言

python编写的用于测试网站访问速率的代码片段，可以输出打开某url的时间，访问100次的平均时间，最大时间和最小时间等等

def Process(url,n): 
    minSpan = 10.0 
    maxSpan = 0.0 
    sumSpan= 0.0 
    over1s = 0 
    for i in range(n): 
        startTime = datetime.datetime.now() 
        try: 
            res = urllib2.urlopen(url,timeout=10) 
        except: 
            pass 
        endTime = datetime.datetime.now() 
        span = (endTime-startTime).total_seconds() 
        sumSpan = sumSpan + span 
        if span < minSpan: 
            minSpan = span 
        if span > maxSpan: 
            maxSpan = span 
        #超过一秒的 
        if span>1: 
            over1s=over1s + 1 
        print(u'%s Spent :%s seconds'%(url,span)) 
    print(u'requested:%s times,Total Spent:%s seconds,avg:%s seconds, max:%s seconds,min:%s seconds,over 1 secnod:%s times'%(n,sumSpan,sumSpan/n,maxSpan,minSpan,over1s)) 
    print('/n') 
  
  
if __name__=='__main__': 
    Process('http://www.baidu.com',100)