nbsp; RET
;=========================================
;各次报警值按键处理子程序
;=========================================
PRO_SHOW: NOP
PR_1: CLR A ; 一次按键
MOV A,44H
CJNE A,#01H,PR_2
MOV R0,#55H
MOV A,@R0
SUBB A,#05H
JNC SS
MOV 51H,55H
MOV A,55H
MOV ADDR1,#0AH
LCALL SHUZIXIANSHI
SJMP END_P
PR_2: CLR A ; 二次按键
MOV A,44H
CJNE A,#02H,PR_3
CLR A
MOV A,55H
SWAP A
ADD A,56H
MOV 51H,A
MOV A,55H
&nbs
