diff --git a/version0.2/nasal_functional.h b/version0.2/nasal_functional.h
deleted file mode 100644
index 4cdbe22..0000000
--- a/version0.2/nasal_functional.h
+++ /dev/null
@@ -1,101 +0,0 @@
-#ifndef __NASAL_FUNCTIONAL_H__
-#define __NASAL_FUNCTIONAL_H__
-
-#include "nasal_var.h"
-
-//for function
-#define FUNC_BEGIN       0
-#define FUNC_OPERATOR    1
-#define FUNC_IDENTIFIER  2
-#define FUNC_NUMBER      3
-#define FUNC_RESERVEWORD 4
-#define FUNC_STRING      5
-
-//for token and lexer
-#define OPERATOR    1 //界符 or 运算符 
-#define IDENTIFIER  2 //自定义标识符 
-#define NUMBER      3 //数字 
-#define RESERVEWORD 4 //关键字 
-#define STRING      5 //字符串类型 
-
-struct token_unit
-{
-	int type;
-	std::string content;
-	int line;
-	token_unit *next;
-};
-
-struct parameter
-{
-	std::string var_name;
-	var param_var;
-	parameter *next;
-};
-
-class func
-{
-	private:
-		token_unit *statement_head;
-		parameter *parameter_head;
-	public:
-		func();
-		func(const func&);
-		~func();
-		func& operator=(const func&);
-		void append_var(std::string&,var&);
-		void append_token(const int,const int,std::string &);
-		void print_info();
-};
-
-class token_list
-{
-	private:
-		token_unit *head;
-		int list_range;
-	public:
-		token_list();
-		~token_list();
-		token_unit* get_head();
-		int get_list_range();
-		void print_line_token(const int);
-		void delete_all();
-		void append(const int,const int,std::string&);
-		void print();
-};
-
-token_list nasal_lexer;
-
-struct parse_unit
-{
-	int type;
-	std::string content;
-	int line;
-};
-
-class parse
-{
-	private:
-		parse_unit *content_array;
-		parse_unit *statement;
-		int len;
-	public:
-		parse();
-		~parse();
-		void content_array_set_empty();
-		void statement_set_empty();
-		void brace_check();
-		bool def_function();
-		bool def_array();
-		bool def_hash();
-		bool def_scalar();
-		bool asi_function();
-		bool asi_array();
-		bool asi_hash();
-		bool asi_scalar();
-		void definition();
-		void assignment();
-		void total_run(token_list&);
-};
-
-#endif