void   menu_main_one_control()
{     
    switch(key)
    {
      case  nokey:   
                     clr_fullscreen();
                     menu_main_one();
                     break;
      case  upkey:   
                     if(arrow_state1==0)
                        break;
                     else
                        arrow_state1=0;
                        lcd_partclr(1,155,6);
                        lcdwrite_arrow(3,155,0);
                        break;
      case  downkey:
                     if(arrow_state1==0)
                        arrow_state1=1;
                        lcd_partclr(3,155,0);
                     if(arrow_state1==1)
                        arrow_state1=0;
                        key_number;
                     
	
    lcdwrite_chinese(2,4,13,&xi);
    lcdwrite_chinese(2,17,13,&shu);
    lcdwrite_chinese(2,30,13,&jiao);
    lcdwrite_chinese(2,43,13,&zhun);
    
    lcdwrite_chinese(0,4,13,&xinhao);
    lcdwrite_chinese(0,17,13,&hao); 
    lcdwrite_chinese(0,30,13,&ce);
    lcdwrite_chinese(0,43,13,&liang);    
    
    if(arrow_state1==0)
    lcdwrite(3,115,6);
    if(arrow_state1==1)
    lcdwrite(1,115,6);	
}