Update Demo

Src/Asp.Net/MySqlTest/Demos/1_Query.cs

@@ -181,6 +181,10 @@ namespace OrmTest.Demo
             var getTodayList = db.Queryable<Student>().Where(it => SqlFunc.DateIsSame(it.CreateTime, DateTime.Now)).ToList();
 
             var unionAll = db.UnionAll<Student>(db.Queryable<Student>(),db.Queryable<Student>());
+
+            var getDay1List = db.Queryable<Student>().Where(it => it.CreateTime.Value.Hour == 1).ToList();
+            var getDateAdd = db.Queryable<Student>().Where(it => it.CreateTime.Value.AddDays(1) == DateTime.Now).ToList();
+            var getDateIsSame = db.Queryable<Student>().Where(it => SqlFunc.DateIsSame(DateTime.Now, DateTime.Now, DateType.Hour)).ToList();
         }
         public static void Page()
         {

Src/Asp.Net/MySqlTest/UnitTest/ExpressionTest/Method.cs

@@ -272,8 +272,8 @@ namespace OrmTest.UnitTest
             expContext.Resolve(exp, ResolveExpressType.WhereSingle);
             var value = expContext.Result.GetString();
             var pars = expContext.Parameters;
-            base.Check(value, pars, " ((@MethodConst1(@MethodConst0)) = @Const2 ) ", new List<SugarParameter>() {
-                new SugarParameter("@MethodConst0",x2),new SugarParameter("@MethodConst1",DateType.Year),new SugarParameter("@Const2",1)
+            base.Check(value, pars, " (Year(@MethodConst0) = @Const2 ) ", new List<SugarParameter>() {
+                new SugarParameter("@MethodConst0",x2),new SugarParameter("@Const2",1)
             }, "DateValue error");
         }
 
@@ -319,9 +319,8 @@ namespace OrmTest.UnitTest
             expContext.Resolve(exp, ResolveExpressType.WhereSingle);
             var value = expContext.Result.GetString();
             var pars = expContext.Parameters;
-            base.Check(value, pars, "((DATE_ADD(@MethodConst1 INTERVAL @MethodConst2 @MethodConst0)) = @Const3 )", new List<SugarParameter>() {
-                new SugarParameter("@MethodConst0",x2),new SugarParameter("@MethodConst1",11),new SugarParameter("@Const3",x2),
-                new SugarParameter("@MethodConst2",DateType.Millisecond)
+            base.Check(value, pars, "((DATE_ADD(@MethodConst0 , INTERVAL @MethodConst1 Millisecond)) = @Const3 )", new List<SugarParameter>() {
+                new SugarParameter("@MethodConst0",x2),new SugarParameter("@MethodConst1",11),new SugarParameter("@Const3",x2)
             }, "DateAddByType error");
         }
         private void DateAddDay()
@@ -345,9 +344,8 @@ namespace OrmTest.UnitTest
             expContext.Resolve(exp, ResolveExpressType.WhereSingle);
             var value = expContext.Result.GetString();
             var pars = expContext.Parameters;
-            base.Check(value, pars, " (TIMESTAMPDIFF(@MethodConst2,@MethodConst0,@MethodConst1)=0) ", new List<SugarParameter>() {
-                new SugarParameter("@MethodConst0",x2),new SugarParameter("@MethodConst1",x2),
-                new SugarParameter("@MethodConst2",DateType.Millisecond)
+            base.Check(value, pars, " (TIMESTAMPDIFF(Millisecond,@MethodConst0,@MethodConst1)=0) ", new List<SugarParameter>() {
+                new SugarParameter("@MethodConst0",x2),new SugarParameter("@MethodConst1",x2)
             }, "DateIsSameByType error");
         }
         private void DateIsSameByDay()

Src/Asp.Net/SqlSugar/Realization/MySql/SqlBuilder/MySqlExpressionContext.cs

@@ -54,6 +54,12 @@ namespace SqlSugar
     }
     public class MySqlMethod : DefaultDbMethod, IDbMethods
     {
+        public override string DateValue(MethodCallExpressionModel model)
+        {
+            var parameter = model.Args[0];
+            var parameter2 = model.Args[1];
+            return string.Format(" {0}({1}) ", parameter2.MemberValue, parameter.MemberName);
+        }
 
         public override string Contains(MethodCallExpressionModel model)
         {
@@ -96,7 +102,7 @@ namespace SqlSugar
             var parameter = model.Args[0];
             var parameter2 = model.Args[1];
             var parameter3 = model.Args[2];
-            return string.Format(" (DATE_ADD({1} INTERVAL {2} {0})) ", parameter.MemberName, parameter2.MemberName, parameter3.MemberValue);
+            return string.Format(" (DATE_ADD({1} , INTERVAL {2} {0})) ", parameter3.MemberValue, parameter.MemberName, parameter2.MemberName);
         }
 
         public override string DateAddDay(MethodCallExpressionModel model)