package yu_okx // 产品类型 type InstType string const ( InstType_SPOT InstType = "SPOT" // 币币 InstType_MARGIN InstType = "MARGIN" // 币币杠杆 InstType_SWAP InstType = "SWAP" // 永续合约 InstType_FUTURES InstType = "FUTURES" // 交割合约 InstType_OPTION InstType = "OPTION" // 期权 InstType_ANY InstType = "ANY" // 全部 )