1.LED小灯仿真实验.zip

/*#include <reg51.h> #include <intrins.h> void delay_10ms(unsigned int c) { unsigned char a,b; for(;c>0;c--) { for (b=38;b>0;b--) { for (a=130;a>0;a--); } } } void main() { P0=0xfe; while(1) { P0=_crol_(P0,1); //crol是何种循环移动 delay_10ms(100); } }*/ //右跑马灯 #include <reg51.h> #include <intrins.h> void delay_10ms(unsigned int c) { unsigned char a,b; for(;c>0;c--) { for (b=38;b>0;b--) { for (a=130;a>0;a--); } } } void main() { unsigned char i,j; P0=0xfe; while(1) { for(i=0;i<7;i++) { P0=_crol_(P0,1); delay_10ms(50); } // P0=0x7f; for(j=0;j<7;j++) { P0=_cror_(P0,1); delay_10ms(50); } } } //左右跑马灯