diff --git a/version0.1/lab.cpp b/version0.1/lab.cpp
deleted file mode 100644
index 417489e..0000000
--- a/version0.1/lab.cpp
+++ /dev/null
@@ -1,39 +0,0 @@
-#include <iostream>
-#include <fstream>
-#include <cstring>
-#include <thread>
-#include <cstdlib>
-#include "nasal.h"
-
-using namespace nasal;
-
-int main()
-{
-	std::cout<<">> input \"help\" to find help."<<std::endl;
-	std::string Command;
-	while(1)
-	{
-		std::cout<<">> ";
-		std::cin>>Command;
-		if(Command=="help")
-		{
-			std::cout<<">> 1.input file name to run the nasal script."<<std::endl;
-			std::cout<<">> 2.command cls to clear the screen."<<std::endl;
-			std::cout<<">> 3.command exit to shut down the program."<<std::endl;
-		}
-		else if(Command=="cls")
-			system("cls");
-		else if(Command=="exit")
-		{
-			nasal_var_stack.delete_all();
-			nasal_func_stack.delete_all();
-			break;
-		}
-		else
-		{
-			RunProcess(Command);
-			nasal_lexer.run();
-		}
-	}
-	return 0;
-}