词法分析器(c#实现)

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1、/**********************************************************************************************************************写在最前面*词法分析前先将源码预处理，去掉多余的空格和换行以及注释*单词与单词之间最好用空格隔开，否则将被识别为未知符号**********************************************************************************************

2、************************/usingSystem;usingSystem.Collections.Generic;usingSystem.ComponentModel;usingSystem.Data;usingSystem.Drawing;usingSystem.Collections;usingSystem.Text;usingSystem.Windows.Forms;usingSystem.IO;namespace词法分析{publicpartialclassForm1:Form{privatestaticst

3、ring[]保留字={"bool","break","case","char","do","double","else","false","float","for","if","int","long","main","new","null","private","protected","public","static","true","try","typeof","unit","void","while","return","short","sizeof","switch"};privatestaticstring[]运算符={"*","/

4、","%","+","-","<<",">>","<",">","<=",">=","==","!=","&","^","

5、","&&","

6、

7、","?:","+=","-=","*=","/=","%=","&=","

8、=","^=","<<=",">>=","="};privatestaticstring[]界符={",",";",".","'","(",")",":","[","]","{","}","/"};privatestaticstring[]标识符;privatestaticstring[]常数;privatestatics

9、tring[]未知符号;privateArrayListtemp=newArrayList();publicForm1(){InitializeComponent();}publicintSearch_Location(stringstr,string[]a)//查找字符编码{for(inti=0;i

10、(a==null)temp.Add(strr);else{for(inti=0;i

11、和//注释string[]str=textBox1.Lines;for(inti=0;i

12、r1.Replace("/r","");}if(str1.Contains("/n"))str1=str1.Replace("/n","");if(str1.Contains("