更新 添加 vlookup lookup isnull isNullOrError

Author: toolgood

csharp/ToolGood.Algorithm2/ToolGood.Algorithm2.csproj

@@ -21,7 +21,7 @@
     <Product>ToolGood.Algorithm</Product>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
     <SignAssembly>true</SignAssembly>
-    <Version>2.0.1</Version>
+    <Version>2.0.2</Version>
     <AssemblyOriginatorKeyFile>ToolGood.Algorithm.snk</AssemblyOriginatorKeyFile>
     <DelaySign>false</DelaySign>
   </PropertyGroup>

csharp/ToolGood.Algorithm2/math/mathParser.cs

@@ -169,7 +169,6 @@ private ExprContext expr(int _p) {
 		ParserRuleContext _parentctx = Context;
 		int _parentState = State;
 		ExprContext _localctx = new ExprContext(Context, _parentState);
-		ExprContext _prevctx = _localctx;
 		int _startState = 2;
 		EnterRecursionRule(_localctx, 2, 1, _p);
 		int _la;
@@ -180,7 +179,6 @@ private ExprContext expr(int _p) {
 			{
 			_localctx = new Expr2_funContext(_localctx);
 			Context = _localctx;
-			_prevctx = _localctx;
 
 			expr2();
 			}
@@ -192,7 +190,6 @@ private ExprContext expr(int _p) {
 				if ( _alt==1 ) {
 					if ( ParseListeners!=null )
 						TriggerExitRuleEvent();
-					_prevctx = _localctx;
 					{
 
 					ErrorHandler.Sync(this);

csharp/ToolGood.Algorithm2/math/mathVisitor.cs

@@ -21,7 +21,6 @@
 
 using Antlr4.Runtime.Misc;
 using Antlr4.Runtime.Tree;
-using IToken = Antlr4.Runtime.IToken;
 
 /// <summary>
 /// This interface defines a complete generic visitor for a parse tree produced