diff --git a/.gitignore b/.gitignore
new file mode 100644
index 000000000..b06e864a3
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,212 @@
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+
+# User-specific files
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+build/
+bld/
+[Bb]in/
+[Oo]bj/
+
+# Visual Studio 2015 cache/options directory
+.vs/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUNIT
+*.VisualState.xml
+TestResult.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# DNX
+project.lock.json
+artifacts/
+
+*_i.c
+*_p.c
+*_i.h
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opensdf
+*.sdf
+*.cachefile
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# JustCode is a .NET coding add-in
+.JustCode
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+## TODO: Comment the next line if you want to checkin your
+## web deploy settings but do note that will include unencrypted
+## passwords
+#*.pubxml
+
+*.publishproj
+
+# NuGet Packages
+*.nupkg
+# The packages folder can be ignored because of Package Restore
+**/packages/*
+# except build/, which is used as an MSBuild target.
+!**/packages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/packages/repositories.config
+
+# Windows Azure Build Output
+csx/
+*.build.csdef
+
+# Windows Store app package directory
+AppPackages/
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/
+
+# Others
+ClientBin/
+[Ss]tyle[Cc]op.*
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.pfx
+*.publishsettings
+node_modules/
+orleans.codegen.cs
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+
+# SQL Server files
+*.mdf
+*.ldf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# LightSwitch generated files
+GeneratedArtifacts/
+_Pvt_Extensions/
+ModelManifest.xml
diff --git a/.vs/SqlSugar/v14/.suo b/.vs/SqlSugar/v14/.suo
index 7fdc2b475..773e4eaf8 100644
Binary files a/.vs/SqlSugar/v14/.suo and b/.vs/SqlSugar/v14/.suo differ
diff --git a/OrmTest/bin/Debug/OrmTest.exe b/OrmTest/bin/Debug/OrmTest.exe
index c5d9dd40c..03231cd2d 100644
Binary files a/OrmTest/bin/Debug/OrmTest.exe and b/OrmTest/bin/Debug/OrmTest.exe differ
diff --git a/OrmTest/bin/Debug/OrmTest.pdb b/OrmTest/bin/Debug/OrmTest.pdb
index 420ab1fbb..6b8fb5949 100644
Binary files a/OrmTest/bin/Debug/OrmTest.pdb and b/OrmTest/bin/Debug/OrmTest.pdb differ
diff --git a/OrmTest/bin/Debug/SqlSugar.dll b/OrmTest/bin/Debug/SqlSugar.dll
index a34e7ab6b..ae41822ec 100644
Binary files a/OrmTest/bin/Debug/SqlSugar.dll and b/OrmTest/bin/Debug/SqlSugar.dll differ
diff --git a/OrmTest/bin/Debug/SqlSugar.pdb b/OrmTest/bin/Debug/SqlSugar.pdb
index e94d0c007..105ae1252 100644
Binary files a/OrmTest/bin/Debug/SqlSugar.pdb and b/OrmTest/bin/Debug/SqlSugar.pdb differ
diff --git a/OrmTest/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache b/OrmTest/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache
deleted file mode 100644
index 297595fc7..000000000
Binary files a/OrmTest/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache and /dev/null differ
diff --git a/OrmTest/obj/Debug/OrmTest.csproj.FileListAbsolute.txt b/OrmTest/obj/Debug/OrmTest.csproj.FileListAbsolute.txt
deleted file mode 100644
index 8f49d2495..000000000
--- a/OrmTest/obj/Debug/OrmTest.csproj.FileListAbsolute.txt
+++ /dev/null
@@ -1,9 +0,0 @@
-F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\OrmTest\bin\Debug\OrmTest.exe.config
-F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\OrmTest\bin\Debug\OrmTest.exe
-F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\OrmTest\bin\Debug\OrmTest.pdb
-F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\OrmTest\bin\Debug\SqlSugar.dll
-F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\OrmTest\bin\Debug\Newtonsoft.Json.dll
-F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\OrmTest\bin\Debug\SqlSugar.pdb
-F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\OrmTest\obj\Debug\OrmTest.csprojResolveAssemblyReference.cache
-F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\OrmTest\obj\Debug\OrmTest.exe
-F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\OrmTest\obj\Debug\OrmTest.pdb
diff --git a/OrmTest/obj/Debug/OrmTest.csprojResolveAssemblyReference.cache b/OrmTest/obj/Debug/OrmTest.csprojResolveAssemblyReference.cache
deleted file mode 100644
index 89d6d076c..000000000
Binary files a/OrmTest/obj/Debug/OrmTest.csprojResolveAssemblyReference.cache and /dev/null differ
diff --git a/OrmTest/obj/Debug/OrmTest.exe b/OrmTest/obj/Debug/OrmTest.exe
deleted file mode 100644
index c5d9dd40c..000000000
Binary files a/OrmTest/obj/Debug/OrmTest.exe and /dev/null differ
diff --git a/OrmTest/obj/Debug/OrmTest.pdb b/OrmTest/obj/Debug/OrmTest.pdb
deleted file mode 100644
index 420ab1fbb..000000000
Binary files a/OrmTest/obj/Debug/OrmTest.pdb and /dev/null differ
diff --git a/OrmTest/obj/Debug/TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs b/OrmTest/obj/Debug/TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs
deleted file mode 100644
index e69de29bb..000000000
diff --git a/OrmTest/obj/Debug/TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs b/OrmTest/obj/Debug/TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs
deleted file mode 100644
index e69de29bb..000000000
diff --git a/OrmTest/obj/Debug/TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs b/OrmTest/obj/Debug/TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs
deleted file mode 100644
index e69de29bb..000000000
diff --git a/SqlSugar/ExpressionsToSql/Common/ExpressionParameter.cs b/SqlSugar/ExpressionsToSql/Common/ExpressionParameter.cs
index f73c58c5d..e8c077242 100644
--- a/SqlSugar/ExpressionsToSql/Common/ExpressionParameter.cs
+++ b/SqlSugar/ExpressionsToSql/Common/ExpressionParameter.cs
@@ -17,5 +17,13 @@ namespace SqlSugar
         public object CommonTempData { get; set; }
         public List<KeyValuePair<string, BinaryExpressionInfo>> BinaryTempData { get; set; }
         public ExpressionResultAppendType AppendType { get; set; }
+        public void IsAppendResult()
+        {
+            this.AppendType = ExpressionResultAppendType.AppendResult;
+        }
+        public void IsAppendTempDate()
+        {
+            this.AppendType = ExpressionResultAppendType.AppendTempDate;
+        }
     }
 }
diff --git a/SqlSugar/ExpressionsToSql/Common/ExpressionResult.cs b/SqlSugar/ExpressionsToSql/Common/ExpressionResult.cs
index 255ab7bcd..d475cb53d 100644
--- a/SqlSugar/ExpressionsToSql/Common/ExpressionResult.cs
+++ b/SqlSugar/ExpressionsToSql/Common/ExpressionResult.cs
@@ -7,7 +7,21 @@ namespace SqlSugar
 {
     public class ExpressionResult
     {
-        public ExpressionParameter CurrentParameter { get; set; }
+        public bool IsLockCurrentParameter { get; set; }
+        private ExpressionParameter _CurrentParameter;
+        public ExpressionParameter CurrentParameter
+        {
+            get
+            {
+                return this._CurrentParameter;
+            }
+            set
+            {
+                Check.Exception(value!=null&&IsLockCurrentParameter, "CurrentParameter is locked.");
+                this._CurrentParameter = value;
+                this.IsLockCurrentParameter = false;
+            }
+        }
         #region constructor
         private ExpressionResult()
         {
@@ -58,7 +72,8 @@ namespace SqlSugar
 
         public void Append(object parameter)
         {
-            if (this.CurrentParameter.IsValuable() && this.CurrentParameter.AppendType.IsIn(ExpressionResultAppendType.AppendTempDate)) {
+            if (this.CurrentParameter.IsValuable() && this.CurrentParameter.AppendType.IsIn(ExpressionResultAppendType.AppendTempDate))
+            {
                 this.CurrentParameter.CommonTempData = parameter;
                 return;
             }
@@ -86,7 +101,7 @@ namespace SqlSugar
         {
             if (this.CurrentParameter.IsValuable() && this.CurrentParameter.AppendType.IsIn(ExpressionResultAppendType.AppendTempDate))
             {
-                this.CurrentParameter.CommonTempData = new KeyValuePair<string,object[]>(parameter,orgs);
+                this.CurrentParameter.CommonTempData = new KeyValuePair<string, object[]>(parameter, orgs);
                 return;
             }
             switch (this._ResolveExpressType)
diff --git a/SqlSugar/ExpressionsToSql/ExpressionContext.cs b/SqlSugar/ExpressionsToSql/ExpressionContext.cs
index 97a2a1b17..4e3437e8b 100644
--- a/SqlSugar/ExpressionsToSql/ExpressionContext.cs
+++ b/SqlSugar/ExpressionsToSql/ExpressionContext.cs
@@ -68,7 +68,7 @@ namespace SqlSugar
         }
         #endregion
 
-        #region functions
+        #region public functions
         public virtual string GetaMppingColumnsName(string name)
         {
             return name;
@@ -78,6 +78,10 @@ namespace SqlSugar
             BaseResolve resolve = new BaseResolve(new ExpressionParameter() { Expression = this.Expression, Context = this });
             resolve.Start();
         }
+        public virtual string GetAsString(string fieldName, string fieldValue)
+        {
+            return string.Format(" {0} {1} {2} ", fieldValue, "AS", fieldName);
+        }
         #endregion
     }
 }
diff --git a/SqlSugar/ExpressionsToSql/ResolveItems/BinaryExpressionResolve.cs b/SqlSugar/ExpressionsToSql/ResolveItems/BinaryExpressionResolve.cs
index 00385e83a..e6ec7e379 100644
--- a/SqlSugar/ExpressionsToSql/ResolveItems/BinaryExpressionResolve.cs
+++ b/SqlSugar/ExpressionsToSql/ResolveItems/BinaryExpressionResolve.cs
@@ -12,8 +12,6 @@ namespace SqlSugar
             if (parameter.BaseParameter.CommonTempData != null && parameter.BaseParameter.CommonTempData.Equals("simple"))
             {
                 parameter.BaseParameter = parameter;
-                parameter.AppendType = ExpressionResultAppendType.AppendTempDate;
-                this.Context.Result.CurrentParameter = parameter;
                 new SimpleBinaryExpressionResolve(parameter);
                 this.Context.Result.CurrentParameter = null;
             }
diff --git a/SqlSugar/ExpressionsToSql/ResolveItems/NewExpressionResolve.cs b/SqlSugar/ExpressionsToSql/ResolveItems/NewExpressionResolve.cs
index 69a49946a..1756f10dd 100644
--- a/SqlSugar/ExpressionsToSql/ResolveItems/NewExpressionResolve.cs
+++ b/SqlSugar/ExpressionsToSql/ResolveItems/NewExpressionResolve.cs
@@ -40,26 +40,45 @@ namespace SqlSugar
                 int i = 0;
                 foreach (var item in expression.Arguments)
                 {
+                    string memberName = expression.Members[i].Name;
                     ++i;
                     if (item.NodeType == ExpressionType.Constant || (item is MemberExpression) && ((MemberExpression)item).Expression.NodeType == ExpressionType.Constant)
                     {
                         base.Expression = item;
                         base.Start();
                         string parameterName = this.Context.SqlParameterKeyWord + "constant" + i;
-                        parameter.Context.Result.Append(parameterName);
+                        parameter.Context.Result.Append(base.Context.GetAsString(memberName,parameterName));
                         this.Context.Parameters.Add(new SugarParameter(parameterName, parameter.CommonTempData));
                     }
                     else if (item is MemberExpression)
                     {
-                        base.Expression = item;
-                        base.Start();
+                        if (base.Context.Result.IsLockCurrentParameter == false)
+                        {
+                            base.Context.Result.CurrentParameter = parameter;
+                            base.Context.Result.IsLockCurrentParameter = true;
+                            parameter.IsAppendTempDate();
+                            base.Expression = item;
+                            base.Start();
+                            parameter.IsAppendResult();
+                            base.Context.Result.Append(base.Context.GetAsString(memberName,parameter.CommonTempData.ObjToString()));
+                            base.Context.Result.CurrentParameter = null;
+                        }
                     }
                     else if (item is BinaryExpression)
                     {
-                        base.Expression = item;
-                        parameter.CommonTempData = "simple";
-                        base.Start();
-                        parameter.CommonTempData =null;
+                        if (base.Context.Result.IsLockCurrentParameter == false)
+                        {
+                            base.Context.Result.CurrentParameter = parameter;
+                            base.Context.Result.IsLockCurrentParameter = true;
+                            parameter.IsAppendTempDate();
+                            base.Expression = item;
+                            parameter.CommonTempData = "simple";
+                            base.Start();
+                            parameter.CommonTempData = null;
+                            parameter.IsAppendResult();
+                            base.Context.Result.Append(base.Context.GetAsString(memberName, parameter.CommonTempData.ObjToString()));
+                            base.Context.Result.CurrentParameter = null;
+                        }
                     }
                     else
                     {
diff --git a/SqlSugar/bin/Debug/Newtonsoft.Json.dll b/SqlSugar/bin/Debug/Newtonsoft.Json.dll
deleted file mode 100644
index 20dae627a..000000000
Binary files a/SqlSugar/bin/Debug/Newtonsoft.Json.dll and /dev/null differ
diff --git a/SqlSugar/bin/Debug/SqlSugar.dll b/SqlSugar/bin/Debug/SqlSugar.dll
deleted file mode 100644
index a34e7ab6b..000000000
Binary files a/SqlSugar/bin/Debug/SqlSugar.dll and /dev/null differ
diff --git a/SqlSugar/bin/Debug/SqlSugar.pdb b/SqlSugar/bin/Debug/SqlSugar.pdb
deleted file mode 100644
index e94d0c007..000000000
Binary files a/SqlSugar/bin/Debug/SqlSugar.pdb and /dev/null differ
diff --git a/SqlSugar/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache b/SqlSugar/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache
deleted file mode 100644
index e6aa33436..000000000
Binary files a/SqlSugar/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache and /dev/null differ
diff --git a/SqlSugar/obj/Debug/SqlSugar.csproj.FileListAbsolute.txt b/SqlSugar/obj/Debug/SqlSugar.csproj.FileListAbsolute.txt
deleted file mode 100644
index c7414cb31..000000000
--- a/SqlSugar/obj/Debug/SqlSugar.csproj.FileListAbsolute.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\SqlSugar\bin\Debug\SqlSugar.dll
-F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\SqlSugar\bin\Debug\SqlSugar.pdb
-F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\SqlSugar\bin\Debug\Newtonsoft.Json.dll
-F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\SqlSugar\obj\Debug\SqlSugar.dll
-F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\SqlSugar\obj\Debug\SqlSugar.pdb
diff --git a/SqlSugar/obj/Debug/SqlSugar.dll b/SqlSugar/obj/Debug/SqlSugar.dll
deleted file mode 100644
index a34e7ab6b..000000000
Binary files a/SqlSugar/obj/Debug/SqlSugar.dll and /dev/null differ
diff --git a/SqlSugar/obj/Debug/SqlSugar.pdb b/SqlSugar/obj/Debug/SqlSugar.pdb
deleted file mode 100644
index e94d0c007..000000000
Binary files a/SqlSugar/obj/Debug/SqlSugar.pdb and /dev/null differ
diff --git a/SqlSugar/obj/Debug/TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs b/SqlSugar/obj/Debug/TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs
deleted file mode 100644
index e69de29bb..000000000
diff --git a/SqlSugar/obj/Debug/TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs b/SqlSugar/obj/Debug/TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs
deleted file mode 100644
index e69de29bb..000000000
diff --git a/SqlSugar/obj/Debug/TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs b/SqlSugar/obj/Debug/TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs
deleted file mode 100644
index e69de29bb..000000000