易于单片机初学者使用，更好地学习单片机 include //---------------------------------- void delay400ms(void) { unsigned char TempCycA = 5; unsigned int TempCycB; while(TempCycA--) { TempCycB=7269; while(TempCycB--); }; } //---------------------- main() { while(1) { P1=0xff; delay400ms(); delay40