LOOP11:                  ;按下"确认"键
     CLR F0
     SETB F1
     MOV COUNT,#0
     MOV P2,#0F0H
     SETB EX0
     RETI
SHIFT1:
      JB F0,LLL
      LJMP EXIT
LLL:  MOV A,COUNT
      CJNE A,#2,LLL1
      MOV 48H,59H
      LJMP EXIT
LLL1: CJNE A,#3,LLL2
      MOV 55H,59H
      LJMP EXIT
LLL2: CJNE A,#4,EXIT
      MOV 56H,59H
      SETB F1
      CLR  F0
EXIT: RET
;*************************显示子程序*************************
DISPLAY1:                        ;显示"自动温度控制系统" 循环效果
       mov column4,#48
       mov pagef4,#0             ;温
       mov code,#0
       lcall writeright2    
       LCALL DELAY1
       mov column4,#32
       mov pagef4,#0             ;温
       mov code,#0
       lcall writeright2
       mov column4,#48
       mov pagef4,#0             ;度
       mov code,#1
       lcall writeright2
       LCALL DELAY1
       mov column4,#16
       mov pagef4,#0             ;温
       mov code,#0
       lcall writeright2
       mov column4,#32
       mov pagef4,#0             ;度
       mov code,#1
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       lcall writeright2
LCALL DELAY1
       mov column4,#0
       mov pagef4,#0             ;温
       mov code,#0
       lcall writeright2
       mov column4,#16
       mov pagef4,#0             ;度
       mov code,#1
       lcall writeright2
       mov column4,#32
       mov pagef4,#0             ;自
       mov code,#2
       lcall writeright2
       mov column4,#48
       mov pagef4,#0             ;动
       mov code,#3
       lcall writeright2
LCALL DELAY1
       mov column3,#48
       mov pagef3,#0             ;温
       mov code,#0
       lcall writeleft2
       mov column4,#0
       mov pagef4,#0             ;度
       mov code,#1
       lcall writeright2
       mov column4,#16
       mov pagef4,#0             ;自
       mov code,#2
       lcall writeright2
       mov column4,#32
       mov pagef4,#0             ;动
       mov code,#3
       lcall writeright2
       mov column4,#48
       mov pagef4,#0             ;控
       mov code,#4
       lcall writeright2
       LCALL DELAY1
       mov column3,#32
       mov pagef3,#0             ;温
       mov code,#0
       lcall writeleft2
       mov column3,#48
       mov pagef3,#0             ;度
       mov code,#1
       lcall writeleft2
       mov column4,#0
       mov pagef4,#0             ;自
       mov code,#2
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