1、ORG0000HAJMPMAINORG000BHAJMPTT0ORG001BHAJMPTT1ORG 0030HMAIN:MOV 20H,#00H; 初始化程序MOV21H,#00HMOV22H,#00HMOV23H,#00HMOV24H,#00HMOV25H,#00HMOV26H,#10;MOV27H,#10;熄灭最高两位MOV30H,#00HMOV31H,#00HMOV32H,#00HMOV33H,#00HMOV34H,#00HMOV35H,#00HMOV36H,#10;MOV37H,#10;