51单片机,串口通信接收十六进制数据并在数码管上显示时,高位显示不出来...答:sbit DUAN=P2^6;//定义锁存使能端口 段锁存 sbit WEI=P2^7;// 位锁存 unsigned char code DuanMa[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};unsigned char code WeiMa[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};//分别对应相应的数码管点亮,即位码 unsigned...