ddddd.c

工控计数器ICCAVR的MAGE8程序LED数码显示+4键

set2:    switch (key)                 //set>>tr or set--<>ps123
		 {
		  case 0x00:
		    while (1)
		    {
		                                //set>>scl or set--<>er
	        display_tr(data);
	        display(data);
            {
set3:	      switch (key)              //set>>pont or set--<>scl 
			  {
		      case 0xe0:
		       while (1)
               {
               key = (PINB&0XF0);       //set>>xxx or set--<>pont
			   display_scl(data);
		       display(data);
			   delay_nus(500);
	           if(key != 0xf0)
			    {
set4:            switch (key)           //set--pont or set--<>scl 
			     {
			     case 0xe0:
			      while (1)
			      {
                  key = (PINB&0XF0);    //set>>xxx or set--<>pont
			      display_pont(data);
		          display(data);
			      delay_nus(500);
                  }
			     case 0xd0:
	             case 0xb0:
		         case 0x70:
	             goto set3;
			     }
		        }
		       } 	   
		      case 0xd0:
		      case 0xb0:
		      case 0x70:
	          goto set2;
		      }
	         }
            }	  
		    case 0xd0:
		    case 0xb0:
			case 0x70:
			goto set1;
			}
		   }     
			     
		  }