Results 2 issues of DavisYao

loading填充图也会出现loaded状态,无法区分是真实图load完成还是loading图load完成 ![image](https://user-images.githubusercontent.com/24189898/55048678-03225e80-5084-11e9-981e-d6c83c4c15f1.png)

Exception Exception Exception Exception Exception Exception Exception Exception Exception proxy_list = soup.find('table', {'id': 'ip_list'}) \ AttributeError: 'NoneType' object has no attribute 'find_all'