是不是可以设置多几个数据源切换？

[lixbeijing]

获取concept数据失败: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response')) (第1次尝试)
获取concept数据失败: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response')) (第2次尝试)
获取concept数据失败: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response')) (第3次尝试)
获取regional数据失败: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response')) (第1次尝试)
获取regional数据失败: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response')) (第2次尝试)
获取regional数据失败: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response')) (第3次尝试)
获取industry数据失败: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response')) (第1次尝试)
获取industry数据失败: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response')) (第2次尝试)
获取industry数据失败: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response')) (第3次尝试)
获取个股资金流向数据失败: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response')) (第1次尝试)
获取个股资金流向数据失败: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response')) (第2次尝试)
获取个股资金流向数据失败: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response')) (第3次尝试)
获取hot数据失败: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response')) (第1次尝试)
获取hot数据失败: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response')) (第2次尝试)
获取hot数据失败: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response')) (第3次尝试)