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symbol not set

Author: Half of an eight., Created: 2018-08-05 22:57:08, Updated:

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The Little DreamThis means that when the policy adds a futures exchange (OKEX digital currency futures, or CTP commodity futures) without setting the contract type, the error resulting from the transaction acquisition or order operation is directly reported. It is necessary to use it before calling a function or placing an order: exchange.SetContractType (string of contract code)