Python中关于flask部署后并发测试的示例代码

import threading, time, requestsurl = ""total = 0suc = 0fail = 0exception = 0maxtime=0mintime=100gt3=0lt3=0class RequestThread(threading.Thread):def __init__(self, thread_name):          threading.Thread.__init__(self)          self.test_count = 0def run(self):        self.test_performace()def test_performace(self):  global totalglobal sucglobal failglobal exceptionglobal gt3global lt3try:                  st = time.time()                  conn = requests.get(url)                res = conn.status_codeif res== 200:                    total+=1suc+=1else:                    total+=1fail+=1time_span = time.time()-st  print ('%s:%f'%(self.name,time_span)  )                self.maxtime(time_span)                  self.mintime(time_span)  if time_span&gt;3:                    gt3+=1else:                    lt3+=1except Exception as e:  print (e  )                total+=1exception+=1def maxtime(self,ts):  global maxtimeprint (ts)if ts&gt;maxtime:                maxtime=tsdef mintime(self,ts):  global mintimeif ts<mintime: start_time thread_count while>20:print ("总数:%d,成功数:%d,失败:%d,异常:%d"%(total,suc,fail,exception)  )print (url)        t+=1time.sleep(1)print ('===========task end===========')print ("总数:%d,成功:%d,失败:%d,异常:%d"%(total,suc,fail,exception))print ('响应最大时间:',maxtime)print ('响应最小时间',mintime)print ('大于3秒的响应:%d,占比:%0.2f'%(gt3,float(gt3)/total))print ('小于3秒:%d,占比:%0.2f'%(lt3,float(lt3)/total))</mintime:>