在Tornado的官方文档（https://www.tornadoweb.org/en/stable/guide/async.html）中有一个同步获取的示例，但是当我将其放入我的get的{{1}}方法中时，它将返回以下错误：
IndexHandler我的代码如下：
File "/home/stefan/.local/lib/python3.6/site-packages/tornado/web.py",line 1697,in _execute
result = method(*self.path_args,**self.path_kwargs)
File "ex1.py",line 19,in get
client = tornado.httpclient.HTTPClient()
File "/home/stefan/.local/lib/python3.6/site-packages/tornado/httpclient.py",line 107,in __init__
self._async_client = self._io_loop.run_sync(make_client)
File "/home/stefan/.local/lib/python3.6/site-packages/tornado/ioloop.py",line 526,in run_sync
self.start()
File "/home/stefan/.local/lib/python3.6/site-packages/tornado/platform/asyncio.py",line 148,in start
self.asyncio_loop.run_forever()
File "/usr/lib/python3.6/asyncio/base_events.py",line 428,in run_forever
'Cannot run the event loop while another loop is running')
RuntimeError: Cannot run the event loop while another loop is running
我相信我应该在import tornado.httpserver
import tornado.ioloop
import tornado.options
import tornado.web
import tornado.httpclient
from tornado.options import define,options
define("port",default=8000,help="run on the given port",type=int)
class IndexHandler(tornado.web.RequestHandler):
def get(self):
client = tornado.httpclient.HTTPClient()
response = client.fetch('https://www.google.com')
print(response.body)
if __name__ == "__main__":
tornado.options.parse_command_line()
app=tornado.web.Application(handlers=[(r"/",IndexHandler)],debug=True)
http_server = tornado.httpserver.HTTPServer(app)
http_server.listen(options.port)
tornado.ioloop.IOLoop.instance().start()
中进行更改，以使其正常工作。