稍稍做了一些改動：

/******************溫度數碼顯示模組*********************/

DISP1:

MOV R1, #70H

MOV R0, #74H

MOV R5, #0FEH

PLAY:

MOV DPTR, #TAB

MOV P2, #0FFH ;原來是 P1

MOV A, @R1

MOVC A, @A+DPTR

MOV P1, A

MOV A, @R0

MOVC A, @A+DPTR

MOV P0, A

MOV P2, R5

MOV A, R5

JB ACC.1, LOOP1

CLR P1.7

CLR P0.7

LOOP1:

CALL DL1MS

INC R1

INC R0

JNB ACC.3, ENDOUT

RL A

MOV R5, A

MOV A, 73H

......