Merge branch 'WJC'

wxr

2020-12-07 64dbbfe1d6488635e160189a704afccffc7d34d0

 HDL_ON/DAL/FileUtils.cs

@@ -50,6 +50,7 @@
            foreach (var fileName in ReadRegionFiles(path))
            {
                File.Delete(Path.Combine(path, fileName));
                MainPage.Log("删除文件名为：" + fileName);
            }
        }