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資源簡(jiǎn)介 

對(duì)四則混合運(yùn)算做了些擴(kuò)展，增加了關(guān)鍵字，表達(dá)式最終還是返回一個(gè)運(yùn)算值。
支持操作數(shù)：int、double、bool、datetime、string
支持關(guān)鍵字：IF、AND、OR、NOT、TRUE、FALSE、ToString、ToDateTime、ToInt、ToDouble、Len、NowDate
詳細(xì)信息參見：
http://blog.csdn.net/welliu/archive/2011/04/25/6360777.aspx

資源截圖

代碼片段和文件信息 

using?System;
using?System.Collections.Generic;
using?System.Text;

namespace?expressionParser
{
????public?class?Define
????{
????????///?
????????///?操作符集
????????///?
????????public?static?Dictionary?Operators?=?new?Dictionary（）?{?
????????{EOperatorType.LeftParennew?Operator（0?99?EAssociativity.LeftToRight?EOperatorType.LeftParen?“（“）?}???????//?左括號(hào)???
????????{EOperatorType.RightParennew?Operator（0?99?EAssociativity.LeftToRight?EOperatorType.RightParen?“）“）?}????//?右括號(hào)???
????????{EOperatorType.Plusnew?Operator（2?44?EAssociativity.LeftToRight?EOperatorType.Plus?“+“）?}????????????????//?加???
????????{EOperatorType.Minusnew?Operator（2?44?EAssociativity.LeftToRight?EOperatorType.Minu

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件??????32768??2011-04-14?14:33??expressionParser\expressionParser\bin\Debug\expressionParser.dll

?????文件??????75264??2011-04-14?14:33??expressionParser\expressionParser\bin\Debug\expressionParser.pdb

?????文件???????9250??2011-04-14?14:28??expressionParser\expressionParser\Define.cs

?????文件???????3616??2011-04-14?13:34??expressionParser\expressionParser\Enum.cs

?????文件??????21153??2011-04-11?22:51??expressionParser\expressionParser\Evaluator.cs

?????文件???????4282??2011-04-14?14:33??expressionParser\expressionParser\expressionParser.cs

?????文件???????2463??2011-04-10?13:08??expressionParser\expressionParser\expressionParser.csproj

?????文件??????13719??2011-04-14?14:11??expressionParser\expressionParser\Grammar.cs

?????文件??????19375??2011-04-11?15:25??expressionParser\expressionParser\GrammarAnalyzer.cs

?????文件????????395??2011-04-10?21:45??expressionParser\expressionParser\obj\Debug\expressionParser.csproj.FileListAbsolute.txt

?????文件??????32768??2011-04-14?14:33??expressionParser\expressionParser\obj\Debug\expressionParser.dll

?????文件??????75264??2011-04-14?14:33??expressionParser\expressionParser\obj\Debug\expressionParser.pdb

?????文件???????8704??2011-04-14?13:32??expressionParser\expressionParser\obj\Debug\Refactor\expressionParser.dll

?????文件??????13840??2011-04-12?16:49??expressionParser\expressionParser\PhraseAnalyzer.cs

?????文件???????1374??2011-04-07?13:29??expressionParser\expressionParser\Properties\AssemblyInfo.cs

?????文件??????23279??2011-04-11?22:12??expressionParser\expressionParser\SyntaxAnalyzer.cs

?????文件???????5087??2011-04-13?13:32??expressionParser\expressionParser\ToolBox.cs

?????文件????????938??2011-04-07?13:29??expressionParser\expressionParser.sln

????..A..H.?????10240??2011-04-07?13:30??expressionParser\expressionParser.suo

?????文件??????32768??2011-04-14?14:33??expressionParserTest\expressionParserTest\bin\Debug\expressionParser.dll

?????文件??????75264??2011-04-14?14:33??expressionParserTest\expressionParserTest\bin\Debug\expressionParser.pdb

?????文件??????13824??2011-04-14?14:40??expressionParserTest\expressionParserTest\bin\Debug\expressionParserTest.exe

?????文件??????26112??2011-04-14?14:40??expressionParserTest\expressionParserTest\bin\Debug\expressionParserTest.pdb

?????文件??????14328??2011-04-14?14:40??expressionParserTest\expressionParserTest\bin\Debug\expressionParserTest.vshost.exe

?????文件????????490??2007-07-21?01:33??expressionParserTest\expressionParserTest\bin\Debug\expressionParserTest.vshost.exe.manifest

?????文件???????3628??2011-04-07?15:56??expressionParserTest\expressionParserTest\expressionParserTest.csproj

?????文件???????1904??2011-04-14?14:41??expressionParserTest\expressionParserTest\Form1.cs

?????文件???????9461??2011-04-14?14:41??expressionParserTest\expressionParserTest\Form1.Designer.cs

?????文件???????7186??2011-04-14?14:41??expressionParserTest\expressionParserTest\Form1.resx

?????文件????????953??2011-04-14?14:40??expressionParserTest\expressionParserTest\obj\Debug\expressionParserTest.csproj.FileListAbsolute.txt

............此處省略35個(gè)文件信息

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