帮我看看这个能否实现上面的功能。谢谢!! ORG 0000H MOV TH0,#63H MOV TL0,#18H SETB TR0 SETB C S0: MOV P1.0,C ACALL DELAY1 CPL C SJMP S0DELAY1: MOV R1,#500 DJNZ R1,DELAY1 RET S1: JBC TF0,S2 SJMP S1 S2: MOV TH0,#63H MOV TL0,#18H DJNZ R2,S1 RET END