急!!!求单只数码管循环显示0~9的代码解释,数码管是共阳极的。万分感谢...答:include<reg51.h>//单片机寄存器相关的文件 include<intrins.h>//具有空指令的文件 define uchar unsigned char//宏定义 以后用uchar替代unsigned char define uint unsigned int //宏定义作用同上 uchar code DSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff};//...
用定时器实现10s秒表的计时功能,精确到小数点后一位,即...答:/* 名称:10s 的秒表 说明:首次按键计时开始,再次按键暂停,第三次按键清零。/ include<reg51.h> define uchar unsigned char define uint unsigned int sbit K1=P3^7;uchar i,Second_Counts,Key_Flag_Idx;bit Key_State;uchar DSY_CODE[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,...