C51_LED点阵屏
void _74HC595_WriteByte(unsigned int Byte) { SER=Byte&0x80; SCK=1; SCK=0; SER=Byte&0x40; SCK=1; SCK=0; SER=Byte&0x20; SCK=1; SCK=0; SER=Byte&0x10; SCK=1; SCK=0; SER=Byte&0x08; SCK=1; SCK=0; SER=Byte&0x04; SCK=1; SCK=0; SER=Byte&0x02; SCK=1; SCK=0; SER=Byte&0x01; SCK=1; SCK=0; }