Merge branch 'huobi_swap' of http://git.skyfffire.com/skyfffire/as-rust into huobi_swap

standard/src/htx_swap.rs

@@ -232,7 +232,7 @@ impl Platform for HtxSwap {
 
         let tick_size = Decimal::from_f64(market_info["price_tick"].as_f64().unwrap()).unwrap();
         let price_precision = Decimal::from_u32(tick_size.scale()).unwrap();
-        let amount_size = Decimal::ONE;
+        let amount_size = Decimal::from_f64(market_info["contract_size"].as_f64().unwrap()).unwrap();
         let amount_precision = Decimal::ZERO;
         let min_qty = Decimal::NEGATIVE_ONE;
         let max_qty = Decimal::NEGATIVE_ONE;