diff --git a/server.py b/server.py
index fd8dcf3..bce130d 100755
--- a/server.py
+++ b/server.py
@@ -15,8 +15,9 @@ p = {}
 # 地址 ==ccid
 pp = {}
 
+
 def add_timestamp():
-    print(datetime.datetime.now(),":")
+    print(datetime.datetime.now(), ":")
 
 
 def save_cache(dic):
@@ -95,6 +96,7 @@ def get_ccid(addr):
 +--------+--------------+----------+----------+--------------+------------------------+--------+
 """
 
+
 def tt_hh(addr, data):
     """处理心跳"""
 
@@ -102,8 +104,8 @@ def tt_hh(addr, data):
     ccid = data[7 + offs : 11 + offs]
     update_pairs(addr, ccid)
     # 组帧再返回
-    msg=data[:]
-    msg[12:-1]=val = '%04x'%int(time.time())
+    msg = data[:]
+    msg[12:-1] = val = "%04x" % int(time.time())
     # 计算校验和
     crc = 0
     for i in msg[:-1]:
@@ -116,9 +118,9 @@ def tt_hh(addr, data):
     # 从缓存中匹配到数据才重发
     # 仅有新终端上线时才重发
     if ccid in cache:
-        msgs = cache[ccid][:] # 浅拷贝
-        sccid=msgs[0][7 + offs : 11 + offs]
-        print("有",len(msgs),"包缓存数据待发。",sccid,"-->",ccid)
+        msgs = cache[ccid][:]  # 浅拷贝
+        sccid = msgs[0][7 + offs : 11 + offs]
+        print("有", len(msgs), "包缓存数据待发。", sccid, "-->", ccid)
         for i in range(len(msgs)):
             try:
                 add_timestamp()
@@ -126,24 +128,25 @@ def tt_hh(addr, data):
                 addr.send(msgs[i])
                 # 成功则清空已发送成功的缓存数据
                 cache[ccid].pop(0)
-                print("第",i+1,"包缓存数据发送完成。")
+                print("第", i + 1, "包缓存数据发送完成。")
             except:
                 # 异常时退出循环，不用再尝试发送后续msgs
-                print("第",i+1,"包发送失败，停止尝试")
+                print("第", i + 1, "包发送失败，停止尝试")
                 break
         if cache[ccid] == []:
-            print("缓存数据全部发送完成。",sccid,"-->",ccid)
+            print("缓存数据全部发送完成。", sccid, "-->", ccid)
             del cache[ccid]
         save_cache(cache)
 
-    
     return 0
 
+
 def check_valid(data):
     # 检查数据有效性
 
     return bytearray(data[:])
 
+
 def tt_trans(addr, data):
     """发送数据到指定ccid"""
 
@@ -171,7 +174,7 @@ def tt_trans(addr, data):
         cache[tccid].append(msg)
         save_cache(cache)
 
-        print("终端未在线或ccid",tccid,"错误。数据已缓存，待目标终端上线后重发。")
+        print("终端未在线或ccid", tccid, "错误。数据已缓存，待目标终端上线后重发。")
         return 0
     print("匹配在线终端为：", tccid, "<--->", taddr)
 
@@ -179,7 +182,7 @@ def tt_trans(addr, data):
     try:
         add_timestamp()
         taddr.send(msg)
-        print("数据发送成功。",sccid,"-->",tccid)
+        print("数据发送成功。", sccid, "-->", tccid)
     except Exception:
         # 发送失败
         taddr.close()
@@ -197,11 +200,11 @@ def tt_trans(addr, data):
 def data_split(data):
     # 按帧头分割长数据
 
-    h= b"$TTMS" #b'\x24\x54\x54\x4d\x53'
-    dlist= data.split(h)[1:]
+    h = b"$TTMS"  # b'\x24\x54\x54\x4d\x53'
+    dlist = data.split(h)[1:]
     for i in range(len(dlist)):
         dlist[i] = h + dlist[i]
-    print("解析为",len(dlist),"包数据。")
+    print("解析为", len(dlist), "包数据。")
     return dlist
 
 
@@ -215,7 +218,7 @@ def tt_decode(addr, data):
 
     # 依据帧头和最小长度初判数据有效性
     # 只要接收数据给的缓存足够大，即使是多条数据组成的长数据也默认帧格式是完整的，前几个字节必须是帧头
-    if data[:5] != b"$TTMS" or len(data) < 12 :
+    if data[:5] != b"$TTMS" or len(data) < 12:
         return -1
 
     dlist = data_split(data)
@@ -231,18 +234,16 @@ def tt_decode(addr, data):
                 flag = -1
                 break
             else:
-                flag=0
+                flag = 0
         else:
             break
     return flag
 
 
-
 class MyServer(socketserver.BaseRequestHandler):
-    
     def handle(self):  # 回调
         add_timestamp()
-        print("终端", self.client_address,"已上线，等待上报心跳注册ccid。")
+        print("终端", self.client_address, "已上线，等待上报心跳注册ccid。")
         conn = self.request
         # print(type(conn),conn.fd)
 
@@ -266,7 +267,7 @@ if __name__ == "__main__":
 
     server = socketserver.ThreadingTCPServer(("", 7222), MyServer)
     add_timestamp()
-    print("服务端初始化成功。",server.server_address)
+    print("服务端初始化成功。", server.server_address)
     server.serve_forever()
 
 
@@ -275,4 +276,4 @@ if __name__ == "__main__":
 单次数据不以帧头开始
 单次数据长度不足11
 未上报心跳（注册ccid）而直接发数据
-"""
\ No newline at end of file
+"""