diff --git a/src/binance.py b/src/binance.py
index 8f688da..a215bf6 100644
--- a/src/binance.py
+++ b/src/binance.py
@@ -3,7 +3,6 @@ import ccxt
 import telebot
 import schedule
 import time
-import logging
 from datetime import datetime, timedelta
 import pytz
 
@@ -14,6 +13,9 @@ CHAT_ID = os.environ['CHAT_ID']
 bot = telebot.TeleBot(BOT_TOKEN)
 SYMBOLS = os.environ['SYMBOLS'].split(',')
 
+# 用于存储上一条消息的ID
+last_message_id = None
+
 def get_ticker_info(symbol):
     ticker = exchange.fetch_ticker(symbol)
     return {
@@ -27,6 +29,7 @@ def get_ticker_info(symbol):
         'bid': ticker['bid'],
         'ask': ticker['ask']
     }
+
 def format_change(change_percent):
     if change_percent > 0:
         return f"🔼 +{change_percent:.2f}%"
@@ -34,7 +37,9 @@ def format_change(change_percent):
         return f"🔽 {change_percent:.2f}%"
     else:
         return f"◀▶ {change_percent:.2f}%"
+
 def send_price_update():
+    global last_message_id
     now = datetime.now(singapore_tz)
     message = f"市场更新 - {now.strftime('%Y-%m-%d %H:%M:%S')} (SGT)\n\n"
     
@@ -50,38 +55,38 @@ def send_price_update():
         message += f"24h 成交额: ${info['quote_volume']:.2f}\n"
         message += f"买一/卖一: ${info['bid']:.7f} / ${info['ask']:.7f}\n\n"
     
-    bot.send_message(CHAT_ID, message, parse_mode='Markdown')
+    # 如果存在上一条消息，则删除它
+    if last_message_id:
+        try:
+            bot.delete_message(chat_id=CHAT_ID, message_id=last_message_id)
+        except Exception as e:
+            print(f"Failed to delete previous message: {e}")
+
+    # 发送新消息并保存其ID
+    sent_message = bot.send_message(CHAT_ID, message, parse_mode='Markdown')
+    last_message_id = sent_message.message_id
 
 def run():
-    logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(name)s - %(levelname)s - %(message)s')
-    logger = logging.getLogger('BinanceUpdater')
-    
+    # 立即执行一次价格更新
+    print("Sending initial price update...")
+    send_price_update()
+
+    # 设置定时任务，每小时整点执行
+    for hour in range(24):
+        schedule.every().day.at(f"{hour:02d}:00").do(send_price_update)
+
+    print("Scheduled tasks set. Waiting for next hour...")
+
+    # 等待下一个整点
+    now = datetime.now(singapore_tz)
+    next_hour = (now + timedelta(hours=1)).replace(minute=0, second=0, microsecond=0)
+    time.sleep((next_hour - now).total_seconds())
+
+    print("Starting main loop...")
+
     while True:
-        try:
-            # 立即执行一次价格更新
-            logger.info("Sending initial price update...")
-            send_price_update()
-
-            # 设置定时任务，每小时整点执行
-            for hour in range(24):
-                schedule.every().day.at(f"{hour:02d}:00").do(send_price_update)
-
-            logger.info("Scheduled tasks set. Waiting for next hour...")
-
-            # 等待下一个整点
-            now = datetime.now(singapore_tz)
-            next_hour = (now + timedelta(hours=1)).replace(minute=0, second=0, microsecond=0)
-            time.sleep((next_hour - now).total_seconds())
-
-            logger.info("Starting main loop...")
-
-            while True:
-                schedule.run_pending()
-                time.sleep(30)  # 每30秒检查一次，可以根据需要调整
-        except Exception as e:
-            logger.error(f"An error occurred in BinanceUpdater: {str(e)}")
-            logger.info("Attempting to restart BinanceUpdater in 60 seconds...")
-            time.sleep(60)  # 等待60秒后重试
+        schedule.run_pending()
+        time.sleep(30)  # 每30秒检查一次，可以根据需要调整
 
 if __name__ == '__main__':
     run()