看看立即join之后，是不是会更快了。

standard/src/gate_swap.rs

@@ -3,6 +3,8 @@ use std::io::{Error, ErrorKind};
 use std::str::FromStr;
 use tokio::sync::mpsc::Sender;
 use async_trait::async_trait;
+use futures::stream::FuturesUnordered;
+use futures::TryStreamExt;
 use rust_decimal::Decimal;
 use rust_decimal::prelude::{FromPrimitive, ToPrimitive};
 use serde_json::json;
@@ -510,15 +512,15 @@ impl Platform for GateSwap {
 
     // 指令下单
     async fn command_order(&mut self, order_command: &mut OrderCommand, trace_stack: &TraceStack) {
-        let ins = trace_stack.ins.clone();
-        TraceStack::show_delay(&ins);
+        let mut handles = vec![];
+
         // 撤销订单
         for item in order_command.cancel.keys() {
             let order_id = order_command.cancel[item].get(1).unwrap().clone();
             let custom_id = order_command.cancel[item].get(0).unwrap().clone();
 
             let mut self_clone = self.clone();
-            spawn(async move {
+            let handle = spawn(async move {
                 let result = self_clone.cancel_order(&order_id, &custom_id).await;
                 match result {
                     Ok(_) => {
@@ -540,7 +542,9 @@ impl Platform for GateSwap {
                     }
                 }
             });
+            handles.push(handle)
         }
+
         // 下单指令
         order_command.limits_open.extend(order_command.limits_close.clone());
         for item in order_command.limits_open.keys() {
@@ -553,7 +557,7 @@ impl Platform for GateSwap {
 
             //  order_name: [数量，方向，价格，c_id]
             let mut self_clone = self.clone();
-            spawn(async move {
+            let handle = spawn(async move {
                 ts.on_before_send();
                 let result = self_clone.take_order(&cid, &side, price, amount).await;
                 ts.on_after_send();
@@ -576,14 +580,16 @@ impl Platform for GateSwap {
                     }
                 }
             });
+            handles.push(handle)
         }
+
         // 检查订单指令
         for item in order_command.check.keys() {
             let order_id = order_command.check[item].get(1).unwrap().clone();
             let custom_id = order_command.check[item].get(0).unwrap().clone();
 
             let mut self_clone = self.clone();
-            spawn(async move {
+            let handle = spawn(async move {
                 let result = self_clone.get_order_detail(&order_id, &custom_id).await;
                 match result {
                     Ok(result) => {
@@ -594,7 +600,11 @@ impl Platform for GateSwap {
                     }
                 }
             });
+            handles.push(handle)
         }
+
+        let futures = FuturesUnordered::from_iter(handles);
+        let _: Result<Vec<_>, _> = futures.try_collect().await;
     }
 }