LED流水灯【单向】

#include 
     
      sbit LED1 = P1^1;sbit LED7 = P1^7;void delay(unsigned int s);// code: 定义在ROM，常量放在ROM// 否则定义在RAM，尽量节省RAM。/*unsigned char code table[] = {    0xfe, 0xfd, 0xfb, 0xf7,    0xef, 0xdf, 0xbf, 0x7f};*/main(){    unsigned char i=0; // 0~65535    unsigned char j;    LED7 = 0; // 点亮P1.7    P1 = 0xFE;    while(1) {        /*         * While语句占了2个赋值语句的时间         * 通过多执行2次，形成2个相等方波         */        //LED1 = 0; // P1.1点亮        //delay(1);                                                         //LED1 = 1; // P1.1熄灭        //delay(1);        // 查表        /*        for(i=0;i<8;i++) {            P1 = table[i];            delay(1);        }        */        // 移位        j = P1;        j = j << 1;        if(j != 0xFE) j = j | 0x01;        P1 = j;        delay(1);    }    return 0;}void delay(unsigned int s){    unsigned int i, end;    end = s*30000;    for(i=0;i