fix(DLPilot): 单实例锁 + 串口占用提示 —— 修复'断不开'的实际根源

2026-09-18 01:13:05 +08:00
parent c8ea5be031
commit e87bf14aaa
3 changed files with 25 additions and 1 deletions
@@ -301,7 +301,11 @@ class DLPC485:
                        self.ser = None
                        with self._lock:
                            self._target = None
-                        self.on_status(f'连接失败: {e}')
+                        et = str(e)
+                        if 'PermissionError' in repr(e) or '拒绝访问' in et \
+                                or 'Access is denied' in et:
+                            et += '（串口被占用: 检查串口助手/另一个本工具实例）'
+                        self.on_status(f'连接失败: {et}')
            if self.ser is not None:
                try:
                    item = None