void delay(unsigned int i); void send(unsigned char a); main() { unsigned char m,dled; while(1) { dled=0x7f; for(m=0;m<8;m++) { send(dled); ledp=0; delay(0x10); ledp=1; dled=_cror_(dled,1); } } } void delay(unsigned int i ) { unsigned int j,k; for(k=0;k
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定时，计数
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