Synchronization code

Src/Asp.Net/SqlSugar/Enum/ProperyType.cs

@@ -15,6 +15,7 @@ namespace SqlSugar
         @double,
         @Guid,
         @byte,
+        @sbyte,
         @enum,
         @short,
         @long,

Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs

@@ -110,6 +110,10 @@ namespace SqlSugar
             {
                 this.DbType = System.Data.DbType.Byte;
             }
+            else if (type == UtilConstants.SByteType)
+            {
+                this.DbType = System.Data.DbType.SByte;
+            }
             else if (type == UtilConstants.FloatType)
             {
                 this.DbType = System.Data.DbType.Single;

Src/Asp.Net/SqlSugar/Utilities/UtilConstants.cs

@@ -24,6 +24,7 @@ namespace SqlSugar
         internal static Type BoolType = typeof(bool);
         internal static Type BoolTypeNull = typeof(bool?);
         internal static Type ByteType = typeof(Byte);
+        internal static Type SByteType = typeof(sbyte);
         internal static Type ObjType = typeof(object);
         internal static Type DobType = typeof(double);
         internal static Type FloatType = typeof(float);