Merge branch 'WJC'

wxr

2020-12-08 145b157ba183ebf877c93ed2dbb01ec737c993d3

 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);
            }
        }