switch(select)  123a
	   {
	   case 0:exit(1);
	   case 3:ShowKeywords(table_key,select1);break;
		case 1:ShowID(table_ID,select1);break; 123R
		case 2:ShowConst(table_const,table_num,select1);break;
		case 4:ShowOperator(table_operator,select1);break;
		case 5:ShowDelimiter(table_delimiter,select1);break;
		case 6:ShowError(select1);break;
		default:exit(1);
		}
        if(select1!='Y')
		 break; 12345.5
	}