-

OrmTest/ExpressionTest/Single.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SqlSugar;
+using System.Linq.Expressions;
+using OrmTest.Models;
+namespace OrmTest.ExpressionTest
+{
+    public class Single : ExpTestBase
+    {
+        private Single() { }
+        public Single(int eachCount)
+        {
+            this.Count = eachCount;
+        }
+        internal void Init()
+        {
+            base.Begin();
+            for (int i = 0; i < base.Count; i++)
+            {
+                Q2();
+            }
+            base.End("Method Test");
+        }
+
+        public void Q2()
+        {
+            using (var db = GetInstance())
+            {
+                var list = db.Queryable<Student>().Where(st => st.Id > 0).ToList();
+            }
+        }
+
+
+        public SqlSugarClient GetInstance()
+        {
+            SqlSugarClient db = new SqlSugarClient(new SystemTablesConfig() { ConnectionString = Config.ConnectionString, DbType = DbType.SqlServer });
+            return db;
+        }
+    }
+}

OrmTest/OrmTest.csproj

@@ -49,6 +49,7 @@
     <Compile Include="ExpressionTest\Join.cs" />
     <Compile Include="ExpressionTest\Method.cs" />
     <Compile Include="ExpressionTest\Select.cs" />
+    <Compile Include="ExpressionTest\Single.cs" />
     <Compile Include="ExpressionTest\Where.cs" />
     <Compile Include="Models\School.cs" />
     <Compile Include="Models\Student.cs" />

OrmTest/Program.cs

@@ -23,6 +23,7 @@ namespace OrmTest
             new OrmTest.ExpressionTest.Where(eachCount).Init();
             new OrmTest.ExpressionTest.Method(eachCount).Init();
             new OrmTest.ExpressionTest.Join(eachCount).Init();
+            new OrmTest.ExpressionTest.Single(eachCount).Init();
         }
     }
 }