更新版本空值处理

UAS-MES/PublicMethod/LogicHandler.cs

@@ -1339,7 +1339,7 @@ namespace UAS_MES.PublicMethod
             string version = BaseUtil.GetCacheData("Version").ToString();
             DataHelper dh = new DataHelper();
             string LastVersion = dh.getFieldDataByCondition("configs", "code", "caller='CSUPDATE'").ToString();
-            if (version == LastVersion)
+            if (version == LastVersion || version == "" || LastVersion == "")
             {
                 return false;
             }