diff --git a/SqlServerTest/Demos/Query.cs b/SqlServerTest/Demos/Query.cs
index d21283e62..ae28ed3e4 100644
--- a/SqlServerTest/Demos/Query.cs
+++ b/SqlServerTest/Demos/Query.cs
@@ -120,7 +120,7 @@ namespace OrmTest.Demo
             var db = GetInstance();
             var getAll = db.Queryable<Student>().ToList();
             var getId = db.Queryable<Student>().Select(it => it.Id).ToList();
-         //   var getIdIIF= db.Queryable<Student>().Select(it =>new { id = SqlFunc.IIF(it.Id == 0, 1, it.Id) }).ToList();
+            var getIdIIF= db.Queryable<Student>().Select(it =>new { id = SqlFunc.IIF(it.Id == 0, 1, it.Id),it.Name,it.SchoolId }).ToList();
             var getAllNoLock = db.Queryable<Student>().With(SqlWith.NoLock).ToList();
             var getByPrimaryKey = db.Queryable<Student>().InSingle(2);
             var getSingleOrDefault = db.Queryable<Student>().Single();
diff --git a/SqlServerTest/Program.cs b/SqlServerTest/Program.cs
index caafd709e..114e595ba 100644
--- a/SqlServerTest/Program.cs
+++ b/SqlServerTest/Program.cs
@@ -18,18 +18,18 @@ namespace OrmTest
         static void Main(string[] args)
         {
             /***Unit Test***/
-            new Field(1).Init();
-            new Where(1).Init();
-            new Method(1).Init();
-            new JoinQuery(1).Init();
-            new SingleQuery(1).Init();
-            new SelectQuery(1).Init();
-            new AutoClose(1).Init();
-            new Insert(1).Init();
-            new Delete(1).Init();
-            new Update(1).Init();
-            new Mapping(1).Init();
-            new DataTest(1).Init();
+            //new Field(1).Init();
+            //new Where(1).Init();
+            //new Method(1).Init();
+            //new JoinQuery(1).Init();
+            //new SingleQuery(1).Init();
+            //new SelectQuery(1).Init();
+            //new AutoClose(1).Init();
+            //new Insert(1).Init();
+            //new Delete(1).Init();
+            //new Update(1).Init();
+            //new Mapping(1).Init();
+            //new DataTest(1).Init();
             /***Performance Test***/
             new SqlSugarPerformance(100).Select();
 
diff --git a/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve.cs b/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve.cs
index 400bb127e..69c47a37e 100644
--- a/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve.cs
+++ b/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve.cs
@@ -185,7 +185,7 @@ namespace SqlSugar
         protected MethodCallExpressionArgs GetMethodCallArgs(ExpressionParameter parameter, Expression item)
         {
             var newContext = this.Context.GetCopyContext();
-            newContext.Resolve(item, this.Context.ResolveType);
+            newContext.Resolve(item, this.Context.IsJoin?ResolveExpressType.WhereMultiple:ResolveExpressType.WhereSingle);
             this.Context.Index = newContext.Index;
             this.Context.ParameterIndex = newContext.ParameterIndex;
             if (newContext.Parameters.IsValuable())