单片机,求通过四个独立按键控制四位数码管静态,动态或加1减1-类显示...答:SCANLEDEQU 30HORG 0000HLJMP MAINORG 001BHLJMP T1ISR;扫描显示ORG 0030HMAIN:MOV SP,#5FHMOV TMOD,#10HMOV TH1,#0ECHMOV TL1,#078HMOV SCANLED,#0SETB ET1SETB TR1SETB EAMOV 30H,#0MOV 31H,#0MOV 32H,#0MOV 33H,#0LOOP: JB P1.0,LP1 JNB P1.0,$ INC 30H MO...