2个回答
展开全部
很好做呀
#include<reg51.h>
sbit key=P1^0;
sbit jdq=P2^0;
main()
{
unsigned int times;
TMOD=0x01;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
while(1)
{
if(key==0)
{
while(key==0);
jdq=0;
TR0=1;
times=0;
while(times>=2400)
{
while(TF0==0);
TF0=0;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
times++;
}
jdq=1;
TR0=0;
}
}
}
#include<reg51.h>
sbit key=P1^0;
sbit jdq=P2^0;
main()
{
unsigned int times;
TMOD=0x01;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
while(1)
{
if(key==0)
{
while(key==0);
jdq=0;
TR0=1;
times=0;
while(times>=2400)
{
while(TF0==0);
TF0=0;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
times++;
}
jdq=1;
TR0=0;
}
}
}
展开全部
#include<reg51.h>
sbit key=P1^0;
sbit jdq=P2^0;
main()
{
unsigned int times;
TMOD=0x01;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
while(1)
{
if(key==0)
{
while(key==0);
jdq=0;
TR0=1;
times=0;
while(times>=2400)
{
while(TF0==0);
TF0=0;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
times++;
}
jdq=1;
TR0=0;
}
}
}
sbit key=P1^0;
sbit jdq=P2^0;
main()
{
unsigned int times;
TMOD=0x01;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
while(1)
{
if(key==0)
{
while(key==0);
jdq=0;
TR0=1;
times=0;
while(times>=2400)
{
while(TF0==0);
TF0=0;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
times++;
}
jdq=1;
TR0=0;
}
}
}
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