行情WEBSOCKET(V2)成交记录成交记录 请求语法: trade@{symbol}示例: trade@btc_usdt速率: 实时Response{ "topic": "trade", "event": "trade@btc_usdt", "data": { "s":"btc_index", //交易对 "p":"50000", //价格 "a":"0.1", //数量 "m": "BID", //成交方向 BID 买 ASK卖 "t":123124124 //时间戳 }}