fix index error

wechat-server/web.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 import os
+import time
 from functools import lru_cache
 from xml.etree.ElementTree import fromstring
 
@@ -37,6 +38,7 @@ wxcpt = WXBizMsgCrypt(WECHAT_TOKEN, WECHAT_AESKEY, WECHAT_CORPID)
 
 # 先用个简单的字典存一下，后面可以考虑用 redis
 last_reply_time = dict()
+server_start_time = int(time.time())
 
 
 def access_token():
@@ -100,7 +102,8 @@ def handle_message(message_token: str):
         print("message_block", message_block)
         if message_block.get("msgtype", None) == "text":
             content = message_block["text"]["content"]
-            if content["send_time"] > last_reply_time.get(external_userid, 0):
+            # 限制一下要大于服务启动的时间
+            if message_block["send_time"] > last_reply_time.get(external_userid, server_start_time):
                 text_message_blocks.append(message_block)
         if message_block.get("msgtype", None) == "image":
             content = message_block["image"]["media_id"]