这是使用PyQT5作为UI的首次提交,将后端和UI合并到1个工程中，统一使用了Python，没有使用JS和HTML

UI/reserved/check_db.py

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+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+import sqlite3
+import os
+
+# 连接数据库
+db_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'models', 'dtmgtDb.db')
+print(f"数据库路径: {db_path}")
+
+if os.path.exists(db_path):
+    conn = sqlite3.connect(db_path)
+    cursor = conn.cursor()
+    
+    # 查询前10条记录的direction_codes
+    cursor.execute('SELECT direction_codes FROM DUTList LIMIT 10')
+    rows = cursor.fetchall()
+    
+    print("前10条记录的direction_codes:")
+    for i, row in enumerate(rows):
+        print(f"{i+1}: {row[0]}")
+    
+    # 查询包含非空direction_codes的记录
+    cursor.execute('SELECT direction_codes FROM DUTList WHERE direction_codes IS NOT NULL AND direction_codes != "" LIMIT 10')
+    rows = cursor.fetchall()
+    
+    print("\n前10条非空direction_codes记录:")
+    for i, row in enumerate(rows):
+        print(f"{i+1}: {row[0]}")
+    
+    conn.close()
+else:
+    print("数据库文件不存在")