Linq 2 sql

Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs

@@ -1228,5 +1228,9 @@ namespace SqlSugar
 
             return queryCondition;
         }
+        public virtual string SelectFields(MethodCallExpressionModel model)
+        {
+            return string.Join(",", model.Args.Select(it => it.MemberName));
+        }
     }
 }

Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/DbMethods/IDbMethods.cs

@@ -128,5 +128,6 @@ namespace SqlSugar
         string NewUid(MethodCallExpressionModel mode);
         string FullTextContains(MethodCallExpressionModel mode);
         string PgsqlArrayContains(MethodCallExpressionModel model);
+        string SelectFields(MethodCallExpressionModel model);
     }
 }

Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/DbMethods/SqlFunc.cs

@@ -431,5 +431,25 @@ namespace SqlSugar
         {
             throw new NotSupportedException("Can only be used in expressions");
         }
+        public static void SelectFields(string fieldName1)
+        {
+            throw new NotSupportedException("Can only be used in expressions");
+        }
+        public static void SelectFields(string fieldName1,string fieldName2)
+        {
+            throw new NotSupportedException("Can only be used in expressions");
+        }
+        public static void SelectFields(string fieldName1, string fieldName2, string fieldName3)
+        {
+            throw new NotSupportedException("Can only be used in expressions");
+        }
+        public static void SelectFields(string fieldName1, string fieldName2, string fieldName3, string fieldName4)
+        {
+            throw new NotSupportedException("Can only be used in expressions");
+        }
+        public static void SelectFields(string fieldName1, string fieldName2, string fieldName3, string fieldName4, string fieldName5)
+        {
+            throw new NotSupportedException("Can only be used in expressions");
+        }
     }
 }

Src/Asp.NetCore2/SqlSugar/SqlSugarForCore.nuspec

@@ -2,7 +2,7 @@
 <package >
   <metadata>
     <id>SqlSugarCore</id>
-    <version>5.1.4.169</version>
+    <version>5.1.4.170-preview02</version>
     <authors>sunkaixuan</authors>
     <owners>果糖大数据科技</owners>
     <licenseUrl>http://www.apache.org/licenses/LICENSE-2.0.html</licenseUrl>