update example

src/example_trade.py

@@ -57,23 +57,25 @@ if __name__ == "__main__":
     positions = get_positions(STRATEGY)
     print("当前持仓:", positions)
     # 模拟输出:
+    #  {'data': [], 'success': True}
     
     
     # 示例：买入中国银行1000股，价格3.45
-    result = buy("601988.SH", 3.45, 1000, STRATEGY)
+    result = buy("601988.SH", 3.45, 3000, STRATEGY)
     print("买入结果:", result)
     # 模拟输出:
+    #{'data': {'message': '模拟买入 - 代码: 601988.SH, 价格: 3.45, 数量: 3000', 'order_id': 'simulation'}, 'success': True}
     
     
     # 示例：卖出中国银行1000股，价格3.48
     result = sell("601988.SH", 3.48, 1000, STRATEGY)
     print("卖出结果:", result)
     # 模拟输出:
-    
+    #  {'data': {'message': '模拟卖出 - 代码: 601988.SH, 价格: 3.48, 数量: 1000', 'order_id': 'simulation'}, 'success': True}
 
     # 示例：再次查询持仓变化
     positions = get_positions(STRATEGY)
     print("交易后持仓:", positions)
     # 模拟输出:
-    
+    # {'data': [{'601988.SH': {'closeable_amount': 2000, 'total_amount': 2000}}], 'success': True}