From 9d1660270272180cd71147d6ddd53d1382643d2e Mon Sep 17 00:00:00 2001
From: wenxiangchao <wenxiangchao@ihengxin.com.cn>
Date: 星期一, 02 十一月 2026 18:00:14 +0800
Subject: [PATCH] merge: 并入远程 Initial commit 作为历史根节点

---
 HMI.Util/DbFileHelper.cs |   29 +++++++++++++++++++++++++++++
 1 files changed, 29 insertions(+), 0 deletions(-)

diff --git a/HMI.Util/DbFileHelper.cs b/HMI.Util/DbFileHelper.cs
new file mode 100644
index 0000000..01d1a02
--- /dev/null
+++ b/HMI.Util/DbFileHelper.cs
@@ -0,0 +1,29 @@
+锘縰sing System;
+using System.IO;
+using System.Linq;
+
+namespace HMI.Util
+{
+    public class DbFileHelper
+    {
+        public static string[] GetDbFiles(string folderPath, DateTime startTime, DateTime endTime)
+        {
+            if (!Directory.Exists(folderPath))
+            {
+                return new string[0];
+            }
+            // 鑾峰彇鎵�鏈�.db鏂囦欢骞剁瓫閫夊嚭7澶╁墠鏇存柊鐨勬枃浠�
+            var oldFiles = Directory.GetFiles(folderPath, "*.db");
+            oldFiles = oldFiles.Where(file =>
+            {
+                var lastWriteTime = File.GetLastWriteTime(file);
+                bool flag = true;
+                if (startTime != null) flag &= lastWriteTime >= startTime;
+                //if (endTime != null) flag &= lastWriteTime <= endTime;
+                return flag;
+            }).ToArray();
+
+            return oldFiles;
+        }
+    }
+}

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