Update access

Src/Asp.Net/SqlSugar.Access/Access/SqlBuilder/AccessUpdateBuilder.cs

@@ -10,7 +10,18 @@ namespace SqlSugar.Access
     {
         protected override string TomultipleSqlString(List<IGrouping<int, DbColumnInfo>> groupList)
         {
-            throw new Exception("access no support batch update");
+            if (groupList.Count == 0) 
+            {
+                return null;
+            }
+            else if (groupList.GroupBy(it => it.Key).Count() > 1)
+            {
+                throw new Exception("access no support batch update");
+            }
+            else 
+            {
+                return ToSingleSqlString(groupList);
+            }
         }
          
     }

Src/Asp.Net/SqlSugar.Access/Properties/AssemblyInfo.cs

@@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
 //可以指定所有这些值，也可以使用“生成号”和“修订号”的默认值
 //通过使用 "*"，如下所示:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.1.0.0")]
-[assembly: AssemblyFileVersion("1.1.0.0")]
+[assembly: AssemblyVersion("1.2.0.0")]
+[assembly: AssemblyFileVersion("1.2.0.0")]