diff --git a/README.md b/README.md
index 220486e..3bd99f1 100644
--- a/README.md
+++ b/README.md
@@ -169,6 +169,10 @@ redisconn = redis.Redis(host = '127.0.0.1', port = '6379', password = 'x', db =
 
 在没有使用线程之前，完整跑完五个种类共(30 x 10 x 5 = 1500)条数据，用时365s
 
+使用线程数为5的情况下，完整跑完五个种类共 1500条数据，用时130s
+
+使用线程数为16的情况下，完整跑完五个种类共 1500条数据，用时80s
+
 ## 参考链接
 
 1，[selenium+python自动化100-centos上搭建selenium启动chrome浏览器headless无界面模式](https://www.cnblogs.com/yoyoketang/p/11582012.html)
@@ -179,7 +183,7 @@ redisconn = redis.Redis(host = '127.0.0.1', port = '6379', password = 'x', db =
 
 4，[Python将list逐行读入到csv文件中](https://blog.csdn.net/weixin_41068770/article/details/103145660)
 
-5，[详解pandas的read_csv方法](https://www.cnblogs.com/traditional/p/12514914.html)
+5，
 
 6，[python 3 实现定义跨模块的全局变量和使用](https://codeantenna.com/a/9YbdOKrrSJ)
 
@@ -189,4 +193,6 @@ redisconn = redis.Redis(host = '127.0.0.1', port = '6379', password = 'x', db =
 
 9，[python + redis 实现 分布式队列任务](https://cloud.tencent.com/developer/article/1697383)
 
-10，
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+10，[深入理解Python线程中join()函数](https://www.linuxidc.com/Linux/2019-03/157795.htm)
+
+11，
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diff --git a/middlewares.py b/middlewares.py
index 9884486..7e7687b 100644
--- a/middlewares.py
+++ b/middlewares.py
@@ -65,20 +65,21 @@ class milkSpider(threading.Thread):
     def __init__(self, name, url):
         threading.Thread.__init__(self)
         self.name = name
-        self.url = url1
+        self.url = url
         self.category = getCategory(url)
-        self.response = downloader.getsource(self.url)
         # self.response = ""
     
     def run(self):
+        self.response = downloader.getsource(self.url)
         threadLock.acquire()
-        print("write2csv for '{}' will be started in 3 seconds....".format(self.url))
-        time.sleep(3)
+        # print("write2csv for '{}' will be started in 3 seconds....".format(self.url))
+        print("write2csv for '{}' was started.".format(self.url))
+        # time.sleep(3)
         write2csv(self.category, self.response)
         print("{} is done.".format(self.name))
         threadLock.release()
 
-def mainThread(threadlines = 5, flag = flag):    # 线程数默认为3
+def mainThread(threadlines = 16, flag = flag):    # 线程数默认为3
     try:
         threads = []
         for index in range(1, threadlines + 1):
@@ -106,7 +107,9 @@ def mainThread(threadlines = 5, flag = flag):    # 线程数默认为3
 
 if __name__ == '__main__':
     if precheck():
+        start_time = time.time()
         mainThread()
+        print("Totally spend " + str(time.time() - start_time) + "secends")
     print("done.")
 
 
@@ -134,3 +137,8 @@ def localtest(category): # 本地加载的源码测试
         time.sleep(10)
         print("page " + str(page) + " sleep over at " + time.ctime())
         page += 1
+
+def clearRedis():   # 用于清空Redis队列
+    while not isNullRedis():
+        redisconn.lpop(REDIS_LISTNAME)
+    print("Redis queue has cleared.")
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