diff --git a/TurtleOnTime.py b/TurtleOnTime.py
index 4f7e3d9..c7739e5 100644
--- a/TurtleOnTime.py
+++ b/TurtleOnTime.py
@@ -9,7 +9,18 @@ import sqlite3
 import stock_database
 import mysql_database
 from EmailTest import send_email
+from dataclasses import dataclass
 
+@dataclass
+class BuyState:
+    trigger_time: float
+    buy_price: float
+    add_price: float
+    stop_price: float
+    quantity: int
+    n: int
+    available_cash: float
+    
 def calc_sma_atr_pd(kdf,period):
     """计算TR与ATR
 
@@ -47,7 +58,7 @@ class TurtleTrading(object):
         self.Capital = Capital
         self.cash = cash
         self.TrigerTime = 0
-        self.BuyStates = [[0, None, None, 0, 0, self.cash]]
+        self.BuyStates = list[BuyState] = []
         
         self.tradeslog = []  # 交易记录
     
@@ -315,6 +326,15 @@ class TurtleTrading_OnTime(object):
         # mysql_database.insert_db(etf_data, "etf_price", True, "代码")
         return stock_data, etf_data
 
+    def Buy_stock(self, price_now):
+        # 发送邮件 代码self.turtle.TradeCode, 建议买入价格price_now，买入份额self.turtle.IntPositionSize
+        send_email()
+        
+        # 每隔1分钟检测回信，解析邮件。
+        
+        # 记录self.turtle.BuyStates
+        pass
+
     def Start_short_system(self):
         """启动short系统
         """