我正在按照此处的说明进行操作:https://testnet.bitmex.com/app/wsAPI并且我已经确认以下Python实现有效(即我这边没有网络问题等)，因为:pythonwsdump.py\wss://testnet.bitmex.com/realtime>{"op":"subscribe","args":["orderBookL2_25:XBTUSD"]}结果{"success":true,"subscribe":"orderBookL2_25:XBTUSD","request":{"op":"subscribe","args":["orderBookL2_25:XB

我正在按照此处的说明进行操作:https://testnet.bitmex.com/app/wsAPI并且我已经确认以下Python实现有效(即我这边没有网络问题等)，因为:pythonwsdump.py\wss://testnet.bitmex.com/realtime>{"op":"subscribe","args":["orderBookL2_25:XBTUSD"]}结果{"success":true,"subscribe":"orderBookL2_25:XBTUSD","request":{"op":"subscribe","args":["orderBookL2_25:XB