我目前有一个脚本，该脚本从文件中读取行，将其保存为一个值，然后使用该值发送一些请求。我尝试进行线程化，以使多个任务完成作业以更快地通过txt文件。问题是线程/任务完全相同。例如，任务1读取第1行，任务2读取第2行，任务3读取第3行，依此类推。我希望任务1读取第1行，任务2读取第2行（一旦任务1完成/退出），任务1将读取第3行，依此类推。

这是我到目前为止所拥有的...

class myThread (threading.Thread):
   def __init__(self,threadID,name,counter):
      threading.Thread.__init__(self)
      self.threadID = threadID
      self.name = name
      self.counter = counter
f = open("gmails.txt","r")
      for line in f:
          field = line.split(':')
          gmail = field[0]

          time = datetime.now()

   **DO SOMETHING

def print_time(threadName,delay,counter):
   while counter:
      if exitflag:

         threadName.exit()
      time.sleep(delay)
      print ("%s: %s" % (threadName,time.ctime(time.time())))
      counter -= 1

# Create new threads
thread1 = myThread(1,"Task-1",1)
thread2 = myThread(2,"Task-2",2)
thread3 = myThread(3,"Task-3",3)
# Start new Threads
thread1.start()
thread2.start()
thread3.start()
thread1.join()
thread2.join()
thread3.join()