def get(self,key):
res = {}
res['code'] = 0
res['msg'] = "成功"
userFollow = UserFollow()
user_key = self.get_secure_cookie("user_key")
f_key = "%s%s" % (user_key,key)
userFollow.delete(f_key)
res_str = json.dumps(res)
self.write(res_str)
