a

frontend/src/components/ConfigPanel.css

@@ -38,12 +38,53 @@
   margin-top: 1.5rem;
 }
 
+.preset-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 1rem;
+  flex-wrap: wrap;
+  gap: 1rem;
+}
+
 .preset-section h3 {
-  margin: 0 0 1rem 0;
+  margin: 0;
   color: #34495e;
   font-size: 1rem;
 }
 
+.current-preset-status {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+}
+
+.status-label {
+  font-size: 0.9rem;
+  color: #666;
+  font-weight: 500;
+}
+
+.status-badge {
+  padding: 0.4rem 0.8rem;
+  border-radius: 20px;
+  font-size: 0.85rem;
+  font-weight: 600;
+  transition: all 0.3s;
+}
+
+.status-badge.preset {
+  background: #4CAF50;
+  color: white;
+  box-shadow: 0 2px 4px rgba(76, 175, 80, 0.3);
+}
+
+.status-badge.custom {
+  background: #FF9800;
+  color: white;
+  box-shadow: 0 2px 4px rgba(255, 152, 0, 0.3);
+}
+
 .preset-buttons {
   display: flex;
   gap: 1rem;
@@ -69,6 +110,19 @@
   box-shadow: 0 4px 8px rgba(0,0,0,0.1);
 }
 
+.preset-btn.active {
+  border-color: #4CAF50;
+  background: #e8f5e9;
+  box-shadow: 0 2px 6px rgba(76, 175, 80, 0.2);
+}
+
+.preset-btn.active:hover:not(:disabled) {
+  border-color: #4CAF50;
+  background: #c8e6c9;
+  transform: translateY(-2px);
+  box-shadow: 0 4px 8px rgba(76, 175, 80, 0.3);
+}
+
 .preset-btn:disabled {
   opacity: 0.6;
   cursor: not-allowed;
@@ -78,6 +132,15 @@
   font-weight: bold;
   color: #2c3e50;
   margin-bottom: 0.25rem;
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+}
+
+.active-indicator {
+  color: #4CAF50;
+  font-size: 1.2rem;
+  font-weight: bold;
 }
 
 .preset-desc {

frontend/src/components/ConfigPanel.jsx

@@ -88,6 +88,45 @@ const ConfigPanel = () => {
     }
   }
 
+  // 检测当前配置匹配哪个预设方案
+  const detectCurrentPreset = () => {
+    if (!configs || Object.keys(configs).length === 0) return null
+    
+    for (const [presetKey, preset] of Object.entries(presets)) {
+      let match = true
+      for (const [key, expectedValue] of Object.entries(preset.configs)) {
+        const currentConfig = configs[key]
+        if (!currentConfig) {
+          match = false
+          break
+        }
+        
+        // 获取当前值（处理百分比转换）
+        let currentValue = currentConfig.value
+        if (key.includes('PERCENT')) {
+          currentValue = currentValue * 100
+        }
+        
+        // 比较值（允许小的浮点数误差）
+        if (typeof expectedValue === 'number' && typeof currentValue === 'number') {
+          if (Math.abs(currentValue - expectedValue) > 0.01) {
+            match = false
+            break
+          }
+        } else if (currentValue !== expectedValue) {
+          match = false
+          break
+        }
+      }
+      
+      if (match) {
+        return presetKey
+      }
+    }
+    
+    return null
+  }
+
   const applyPreset = async (presetKey) => {
     const preset = presets[presetKey]
     if (!preset) return
@@ -122,6 +161,8 @@ const ConfigPanel = () => {
     }
   }
 
+  const currentPreset = detectCurrentPreset()
+
   if (loading) return <div className="loading">加载中...</div>
 
   const configCategories = {
@@ -145,17 +186,28 @@ const ConfigPanel = () => {
         
         {/* 预设方案快速切换 */}
         <div className="preset-section">
+          <div className="preset-header">
             <h3>快速切换方案</h3>
+            <div className="current-preset-status">
+              <span className="status-label">当前方案：</span>
+              <span className={`status-badge ${currentPreset ? 'preset' : 'custom'}`}>
+                {currentPreset ? presets[currentPreset].name : '自定义'}
+              </span>
+            </div>
+          </div>
           <div className="preset-buttons">
             {Object.entries(presets).map(([key, preset]) => (
               <button
                 key={key}
-                className="preset-btn"
+                className={`preset-btn ${currentPreset === key ? 'active' : ''}`}
                 onClick={() => applyPreset(key)}
                 disabled={saving}
                 title={preset.desc}
               >
-                <div className="preset-name">{preset.name}</div>
+                <div className="preset-name">
+                  {preset.name}
+                  {currentPreset === key && <span className="active-indicator">✓</span>}
+                </div>
                 <div className="preset-desc">{preset.desc}</div>
               </button>
             ))}

trading_system/binance_client.py

@@ -38,6 +38,7 @@ class BinanceClient:
         self.socket_manager: Optional[BinanceSocketManager] = None
         self.unicorn_manager: Optional[UnicornWebSocketManager] = None
         self.use_unicorn = config.TRADING_CONFIG.get('USE_UNICORN_WEBSOCKET', True)
+        self._symbol_info_cache: Dict[str, Dict] = {}  # 缓存交易对信息
         
     async def connect(self, timeout: int = None, retries: int = None):
         """
@@ -294,6 +295,97 @@ class BinanceClient:
             logger.error(f"获取持仓信息失败: {e}")
             return []
     
+    async def get_symbol_info(self, symbol: str) -> Optional[Dict]:
+        """
+        获取交易对的精度和限制信息
+        
+        Args:
+            symbol: 交易对
+            
+        Returns:
+            交易对信息字典，包含 quantityPrecision, minQty, stepSize 等
+        """
+        # 先检查缓存
+        if symbol in self._symbol_info_cache:
+            return self._symbol_info_cache[symbol]
+        
+        try:
+            exchange_info = await self.client.futures_exchange_info()
+            for s in exchange_info['symbols']:
+                if s['symbol'] == symbol:
+                    # 提取数量精度信息
+                    quantity_precision = s.get('quantityPrecision', 8)
+                    
+                    # 从filters中提取minQty和stepSize
+                    min_qty = None
+                    step_size = None
+                    for f in s.get('filters', []):
+                        if f['filterType'] == 'LOT_SIZE':
+                            min_qty = float(f.get('minQty', 0))
+                            step_size = float(f.get('stepSize', 0))
+                            break
+                    
+                    info = {
+                        'quantityPrecision': quantity_precision,
+                        'minQty': min_qty or 0,
+                        'stepSize': step_size or 0
+                    }
+                    
+                    # 缓存信息
+                    self._symbol_info_cache[symbol] = info
+                    logger.debug(f"获取 {symbol} 精度信息: {info}")
+                    return info
+            
+            logger.warning(f"未找到交易对 {symbol} 的信息")
+            return None
+        except Exception as e:
+            logger.error(f"获取 {symbol} 交易对信息失败: {e}")
+            return None
+    
+    def _adjust_quantity_precision(self, quantity: float, symbol_info: Dict) -> float:
+        """
+        调整数量精度，使其符合币安要求
+        
+        Args:
+            quantity: 原始数量
+            symbol_info: 交易对信息
+            
+        Returns:
+            调整后的数量
+        """
+        if not symbol_info:
+            # 如果没有交易对信息，使用默认精度（3位小数）
+            return round(quantity, 3)
+        
+        quantity_precision = symbol_info.get('quantityPrecision', 8)
+        step_size = symbol_info.get('stepSize', 0)
+        min_qty = symbol_info.get('minQty', 0)
+        
+        # 如果有stepSize，按照stepSize调整
+        if step_size > 0:
+            # 向下取整到stepSize的倍数（使用浮点数除法）
+            adjusted = float(int(quantity / step_size)) * step_size
+        else:
+            # 否则按照精度调整
+            adjusted = round(quantity, quantity_precision)
+        
+        # 确保不小于最小数量
+        if min_qty > 0 and adjusted < min_qty:
+            # 如果小于最小数量，尝试向上取整到最小数量
+            if step_size > 0:
+                adjusted = min_qty
+            else:
+                adjusted = round(min_qty, quantity_precision)
+            logger.warning(f"数量 {quantity} 小于最小数量 {min_qty}，调整为 {adjusted}")
+        
+        # 最终精度调整
+        adjusted = round(adjusted, quantity_precision)
+        
+        if adjusted != quantity:
+            logger.info(f"数量精度调整: {quantity} -> {adjusted} (精度: {quantity_precision}, stepSize: {step_size}, minQty: {min_qty})")
+        
+        return adjusted
+    
     async def place_order(
         self, 
         symbol: str, 
@@ -316,12 +408,22 @@ class BinanceClient:
             订单信息
         """
         try:
+            # 获取交易对精度信息并调整数量
+            symbol_info = await self.get_symbol_info(symbol)
+            adjusted_quantity = self._adjust_quantity_precision(quantity, symbol_info)
+            
+            if adjusted_quantity <= 0:
+                logger.error(f"调整后的数量无效: {adjusted_quantity} (原始: {quantity})")
+                return None
+            
+            logger.info(f"下单: {symbol} {side} {adjusted_quantity} (原始: {quantity}) @ {order_type}")
+            
             if order_type == 'MARKET':
                 order = await self.client.futures_create_order(
                     symbol=symbol,
                     side=side,
                     type='MARKET',
-                    quantity=quantity
+                    quantity=adjusted_quantity
                 )
             else:
                 if price is None:
@@ -331,13 +433,20 @@ class BinanceClient:
                     side=side,
                     type='LIMIT',
                     timeInForce='GTC',
-                    quantity=quantity,
+                    quantity=adjusted_quantity,
                     price=price
                 )
             
-            logger.info(f"下单成功: {symbol} {side} {quantity} @ {order_type}")
+            logger.info(f"下单成功: {symbol} {side} {adjusted_quantity} @ {order_type}")
             return order
         except BinanceAPIException as e:
+            error_code = e.code if hasattr(e, 'code') else None
+            if error_code == -1111:
+                logger.error(f"下单失败 {symbol} {side}: 精度错误 - {e}")
+                logger.error(f"  原始数量: {quantity}")
+                if symbol_info:
+                    logger.error(f"  交易对精度: {symbol_info}")
+            else:
                 logger.error(f"下单失败 {symbol} {side}: {e}")
             return None