import gevent
import requests
import time
 
 
def get_res(url):
  res = requests.get(url)
  print(res.content.decode('utf-8'))
 
 
if __name__ == '__main__':
  g_lista = []
  start_time=time.time()
  for i in range(500):
    g = gevent.spawn(get_res, 'http://www.baidu.com')
    g_lista.append(g)
    print(i, flush=True)
  print(len(g_lista))
  [a.join() for a in g_lista]
  end_time = time.time() - start_time
  print(end_time)