import?java.io.IOException;
	import?java.security.Signature;
	import?java.util.ArrayList;
	import?java.util.List;
	import?java.util.Vector;
	
	import?javax.swing.text.styledEditorKit.ForegroundAction;
	
	
	public?class?FourAddressCode?{
	
		/**
		?*?@param?args
		?*/
		static?SYS?siyuanshi[]=new?SYS[40];
		Vector?result=new?Vector（）;
		Vector?shuruliubeifen=new?Vector（）;
		int?while_endsign=0;
		static?int?count=0;
		static?int?count_sign=0;
		int?if_oversign=0;???????
		int?else_beginsign=0;
		int?while_beginsign=10;?
		int?huibianjump[]=new?int[50];???
		int?sign=0;
		///***???????*****////
			public?void?siyuanshi（）?{
				
				Lex?lex?=?new?Lex（）;
				List?tokens?=?new?ArrayList（）;
				tokens?=?lex.getTokens（）;
				//System.out.println（tokens.size（））;
				for（int?k=0;k<40;k++）?{
					siyuanshi[k]=new?SYS（）;
					siyuanshi[k].p1=new?Node（）;
				}
				for（int?j=0;j				{
					String?s?=?tokens.get（j）.getWord（）;
					//System.out.println（“hello“+s）;
					shuruliubeifen.add（s）;
				}
				//System.out.println（“hello“+shuruliubeifen.size（））;
				for?（int?j=0;j			???????{
			????	??//?System.out.println（shuruliubeifen.get（j））;
			???????}
				//String?a=““;
				int?i=0;
				//System.out.println（“hello“+shuruliubeifen.size（））;
				while（i					String?linshi1=““;
					String?linshi=（String）shuruliubeifen.elementAt（i）;
					if（i<（shuruliubeifen.size（）-1））?{
						linshi1=（String）shuruliubeifen.elementAt（i+1）;
					}
					//if語句
					if（linshi.equals（“if“））?{
						if（（（String）shuruliubeifen.elementAt（i+3））.equals（“>“）
							||（（String）shuruliubeifen.elementAt（i+3））.equals（“<“）
							||（（String）shuruliubeifen.elementAt（i+3））.equals（“=“））?{
							
							siyuanshi[count].fuhao=（String）shuruliubeifen.elementAt（i+3）;
							siyuanshi[count].op1=（String）shuruliubeifen.elementAt（i+2）;
							siyuanshi[count].op2=（String）shuruliubeifen.elementAt（i+4）;
							
							huibianjump[sign]=count+2;
							sign++;
							siyuanshi[count].p1.Address_Num=count+2;
							count++;
			
							siyuanshi[count].fuhao=“j“;
							siyuanshi[count].op1=“_“;
						????siyuanshi[count].op2=“_“;
							else_beginsign=count;
							count++;
							i++;
						}???
					}
					//else?語句
					else?if（linshi.equals（“else“））?{
	
						siyuanshi[count].fuhao=“j“;
						siyuanshi[count].op1=“_“;
						siyuanshi[count].op2=“_“;
			
						if_oversign=count;
						count++;
						huibianjump[sign]=count;
						sign++;
						siyuanshi[else_beginsign].p1.Address_Num=count;
						i++;
					}
					//while語句
					else?if（linshi.equals（“while“））?{
	
						if（（（String）shuruliubeifen.elementAt（i+3））.equals（“>“）
							||（（String）shuruliubeifen.elementAt（i+3））.equals（“<“）
							||（（String）shuruliubeifen.elementAt（i+3））.equals（“=“））?{
	
							while_beginsign=count;
							siyuanshi[count].fuhao=（String）shuruliub

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2013-06-28?13:43??Lexical-all\
?????文件?????????301??2013-06-20?14:20??Lexical-all\.classpath
?????文件?????????383??2013-06-20?14:20??Lexical-all\.project
?????目錄???????????0??2013-06-28?13:43??Lexical-all\.settings\
?????文件?????????122??2013-06-20?14:21??Lexical-all\.settings\org.eclipse.core.resources.prefs
?????文件?????????598??2013-06-20?14:20??Lexical-all\.settings\org.eclipse.jdt.core.prefs
?????目錄???????????0??2013-06-28?13:43??Lexical-all\bin\
?????文件????????5248??2013-06-21?21:52??Lexical-all\bin\FourAddressCode.class
?????文件????????6592??2013-06-21?21:46??Lexical-all\bin\Lex.class
?????文件?????????301??2013-06-21?21:46??Lexical-all\bin\Node.class
?????文件?????????321??2013-06-21?21:46??Lexical-all\bin\SYS.class
?????文件????????1047??2013-06-21?21:46??Lexical-all\bin\Symbol.class
?????文件????????1225??2013-06-21?21:46??Lexical-all\bin\SymbolTable.class
?????文件????????1177??2013-06-21?21:46??Lexical-all\bin\SymbolType.class
?????文件????????1126??2013-06-21?21:46??Lexical-all\bin\Token.class
?????文件????????1208??2013-06-21?21:46??Lexical-all\bin\TokenType.class
?????文件????????7190??2013-06-21?21:46??Lexical-all\bin\TopDown.class
?????文件??????????80??2013-06-20?14:20??Lexical-all\input.txt
?????文件?????????202??2013-06-20?14:20??Lexical-all\input2.txt
?????目錄???????????0??2013-06-28?13:43??Lexical-all\src\
?????文件????????8240??2013-06-21?21:52??Lexical-all\src\FourAddressCode.java
?????文件????????7240??2013-06-20?14:30??Lexical-all\src\Lex.java
?????文件?????????104??2013-06-20?14:20??Lexical-all\src\Node.java
?????文件?????????117??2013-06-20?14:20??Lexical-all\src\SYS.java
?????文件?????????575??2013-06-20?14:20??Lexical-all\src\Symbol.java
?????文件?????????557??2013-06-20?14:20??Lexical-all\src\SymbolTable.java
?????文件?????????115??2013-06-20?14:20??Lexical-all\src\SymbolType.java
?????文件?????????526??2013-06-20?14:20??Lexical-all\src\Token.java
?????文件?????????107??2013-06-20?14:20??Lexical-all\src\TokenType.java
?????文件????????8289??2013-06-20?14:20??Lexical-all\src\TopDown.java
?????文件?????????231??2013-06-20?14:20??Lexical-all\test
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