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@@ -0,0 +1,8 @@
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+// TODO 市场数据汇总（market_info）的下标集合
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+pub const LEVEL: usize = 1;
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+pub const TRADE_LENGTH: usize = 2; // TODO 推测应该是交易交易所的数据长度
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+pub const LENGTH: usize = LEVEL * 4 + TRADE_LENGTH; // 市场数据汇总的总长度
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+pub const BID_PRICE_INDEX: usize = LEVEL * 0;
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+pub const BID_QUANTITY_INDEX: usize = LEVEL * 0 + 1;
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+pub const ASK_PRICE_INDEX: usize = LEVEL * 2;
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+pub const ASK_QUANTITY_INDEX: usize = LEVEL * 2 + 1;
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