[51单片机C语言编程]代码如下： typedef union { unsigned int myvalue; struct{ unsigned myvalueL:8; unsigned myvalueH:8; }child; }_mytype; _mytype mytype; void main() { mytype.myvalue...+阅读
/*该程序流水灯有两种模式，顺序左移和顺序右移，独立开关控制*/
#include
#include
#define uchar unsigned char
#define uint unsigned int
uchar tmp,flag;
sbit key1=P3^4;
sbit key2=P3^5;
void delay(uint z);
void led();
void keyscan();
void main()
{
tmp=0xfe;
P1=tmp;
while(1)
{
keyscan();
led();
}
}
void keyscan()
{
if(key1==0)
{
delay(10);
if(key1==0)
{
flag=1;
while(key1==0);
}
}
if(key2==0)
{
delay(10);
if(key2==0)
{
flag=0;
while(key2==0);
}
}
}
void led()
{
switch(flag)
{
case 1: {tmp=_crol_(tmp,1);P1=tmp;delay(200);break;}
case 0: {tmp=_cror_(tmp,1);P1=tmp;delay(200);break;}
default: break;
}
}
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
延伸阅读：
单片机 C语言程序P1=1<<j++；这句错了，<<；这个是左移，而不是循环左移 改为这样就可以了 #include <reg52.h> #include<intrins.h> typedef unsigned int uint16; typedef unsigned char uint8;...
