两种方法：
方法一：
from gevent import pywsgi
if __name__ == ‘__main__’:
server = pywsgi.WSGIServer((‘0.0.0.0’, 5000), app)
server.serve_forever()
方法二：
from wsgiref.simple_server import make_server
if __name__ == ‘__main__’:
server = make_server(”, 64570, app)
server.serve_forever()
