//虚拟数码管显示
SBUF = 0x37;B_TX1_Busy = 1; while(B_TX1_Busy);
SBUF = 0x53;B_TX1_Busy = 1; while(B_TX1_Busy);
SBUF = 0x45;B_TX1_Busy = 1; while(B_TX1_Busy);
SBUF = 0x47;B_TX1_Busy = 1; while(B_TX1_Busy);
SBUF = 0x53;B_TX1_Busy = 1; while(B_TX1_Busy);
SBUF = 0x00;B_TX1_Busy = 1; while(B_TX1_Busy);
SBUF = 0x00;B_TX1_Busy = 1; while(B_TX1_Busy);
SBUF = 0x00;B_TX1_Busy = 1; while(B_TX1_Busy);
SBUF = 0x31;B_TX1_B