diff --git a/connect.py b/connect.py
index 54a4b03b4..f55c328cb 100644
--- a/connect.py
+++ b/connect.py
@@ -104,6 +104,41 @@ class Tty(object):
             cmd_str = patch_char.sub('', cmd_str.rstrip())
         return cmd_str
 
+    @staticmethod
+    def deal_backspace(match_str, result_command, pattern_str, backspace_num):
+        '''
+        处理删除确认键
+        '''
+        if backspace_num > 0:
+            if backspace_num > len(result_command):
+                result_command += pattern_str
+                result_command = result_command[0:-backspace_num]
+            else:
+                result_command = result_command[0:-backspace_num]
+                result_command += pattern_str
+        del_len = len(match_str)-3
+        if del_len > 0:
+            result_command = result_command[0:-del_len]
+        return result_command, len(match_str)
+    
+    @staticmethod
+    def deal_replace_char(match_str,result_command,backspace_num):
+        '''
+        处理替换命令
+        '''
+        str_lists = re.findall(r'(?<=\x1b\[1@)\w',match_str)
+        tmp_str =''.join(str_lists)
+        result_command_list = list(result_command)
+        if len(tmp_str) > 1:
+            result_command_list[-backspace_num:-(backspace_num-len(tmp_str))] = tmp_str
+        elif len(tmp_str) > 0:
+            if result_command_list[-backspace_num] == ' ':
+                result_command_list.insert(-backspace_num, tmp_str)
+            else:
+                result_command_list[-backspace_num] = tmp_str
+        result_command = ''.join(result_command_list)
+        return result_command, len(match_str)
+    
     def remove_control_char(self, result_command):    
         """
         处理日志特殊字符
@@ -130,10 +165,7 @@ class Tty(object):
         """
             处理命令中特殊字符
         """
-        str_r = re.sub('\x07', '', str_r)       # 删除响铃
-        patch_char = re.compile('\x08\x1b\[C')  # 删除方向左右一起的按键
-        while patch_char.search(str_r):
-            str_r = patch_char.sub('', str_r.rstrip())
+        str_r = self.remove_obstruct_char(str_r)
 
         result_command = ''             # 最后的结果
         backspace_num = 0               # 光标移动的个数
@@ -142,31 +174,21 @@ class Tty(object):
         while str_r:
             tmp = re.match(r'\s*\w+\s*', str_r)
             if tmp:
+                str_r = str_r[len(str(tmp.group(0))):]
                 if reach_backspace_flag:
                     pattern_str += str(tmp.group(0))
-                    str_r = str_r[len(str(tmp.group(0))):]
                     continue
                 else:
                     result_command += str(tmp.group(0))
-                    str_r = str_r[len(str(tmp.group(0))):]
                     continue
                 
             tmp = re.match(r'\x1b\[K[\x08]*', str_r)
             if tmp:
-                if backspace_num > 0:
-                    if backspace_num > len(result_command):
-                        result_command += pattern_str
-                        result_command = result_command[0:-backspace_num]
-                    else:
-                        result_command = result_command[0:-backspace_num]
-                        result_command += pattern_str
-                del_len = len(str(tmp.group(0)))-3
-                if del_len > 0:
-                    result_command = result_command[0:-del_len]
+                result_command, del_len = self.deal_backspace(str(tmp.group(0)), result_command, pattern_str, backspace_num)
                 reach_backspace_flag = False
                 backspace_num = 0
                 pattern_str = ''
-                str_r = str_r[len(str(tmp.group(0))):]
+                str_r = str_r[del_len:]
                 continue
             
             tmp = re.match(r'\x08+', str_r)
@@ -182,7 +204,14 @@ class Tty(object):
                     continue
                 else:
                     break
-            
+                
+            tmp = re.match(r'(\x1b\[1@\w)+', str_r)                           #处理替换的命令
+            if tmp:
+                result_command,del_len = self.deal_replace_char(str(tmp.group(0)), result_command, backspace_num)
+                str_r = str_r[del_len:]
+                backspace_num = 0
+                continue
+        
             if reach_backspace_flag:
                 pattern_str += str_r[0]
             else:
@@ -192,22 +221,8 @@ class Tty(object):
         if backspace_num > 0:
             result_command = result_command[0:-backspace_num] + pattern_str
 
-        control_char = re.compile(r"""
-                \x1b[ #%()*+\-.\/]. |
-                \r |                                               #匹配 回车符(CR)
-                (?:\x1b\[|\x9b) [ -?]* [@-~] |                     #匹配 控制顺序描述符(CSI)... Cmd
-                (?:\x1b\]|\x9d) .*? (?:\x1b\\|[\a\x9c]) | \x07 |   #匹配 操作系统指令(OSC)...终止符或振铃符(ST|BEL)
-                (?:\x1b[P^_]|[\x90\x9e\x9f]) .*? (?:\x1b\\|\x9c) | #匹配 设备控制串或私讯或应用程序命令(DCS|PM|APC)...终止符(ST)
-                \x1b.                                              #匹配 转义过后的字符
-                [\x80-\x9f] | (?:\x1b\]0.*) | \[.*@.*\][\$#] | (.*mysql>.*)      #匹配 所有控制字符
-                """, re.X)
-        result_command = control_char.sub('', result_command.strip())
-        if not self.vim_flag:
-            if result_command.startswith('vi') or result_command.startswith('fg'):
-                self.vim_flag = True
-            return result_command.decode('utf8', "ignore")
-        else:
-            return ''
+        result_command = self.remove_control_char(result_command)
+        return result_command
 
     def get_log(self):
         """