main.cpp

编译原理大新实验代码dfanfa转化实验要求等

#include "gra.h"
void main()
{
Gra a;
lab1:	char tt;
		
SetColor2();
	cout<<"                               欢迎使用文法演示程序!\n"
		<<"                                     选择菜单:\n"
		<<"                               ***********************\n"
		<<"                               *    1.输入文法       *\n";
	SetColor();
	cout<<"                               *    2.压缩文法       *\n";
	SetColor2();
	cout<<"                               *    3.输出文法       *\n";
	SetColor();
	cout<<"                               *    4.转换为FA       *\n";
	SetColor2();
	cout<<"                               *    5.输出多余文法   *\n";
	SetColor();
	cout<<"                               *    6.重新输入       *\n";
	SetColor2();
	cout<<"                               *    7.退出           *\n";
	SetColor();
	cout<<"                               ***********************\n"
		<<"请您选择:(1~7):";
	cin>>tt;
	
	SetColorde();
	cin.get();
	while (tt!='7')
	{switch (tt)
	{
	case'1':a.input();break;
	case'2':a.compress();break;
	case'3':a.output();break;
	case'4':a.tofa();break;
	case'5':a.outputs();break;
	case'6':{a.del();a.input();break;}
	default:cout<<"您的输入有误,重来!\n";goto lab1;break;
	}
	goto lab1;
	}

}