初学单片机, 谢谢大家
sbit RS =P1^1;
sbit E =P1^3; uchar key=0;
sbit RW = P1^2;
bit anjian=1; sbit anj=P1^0;
sbit b0=P2^0;
sbit b1=P2^1;
sbit b2=P2^2;
sbit b3=P2^3;
sbit b4=P2^4;
sbit b5=P2^5;
sbit b6=P2^6;
sbit b7=P2^7;
sbit led=P1^4;
sbit buzzer=P1^7;
uchar people[8];
char count=0;
char sum=0;
void delay(uint j){
//1ms延时函数
uchar i =250;
for(;j>0;j--)
while(--i);
i=249;
while(--i);
i=250;}
void check()
{
anjian=anj;
if(b0==0){people[0]=1;}
if(b1==0){people[1]=1;}
if(b2==0){people[2]=1;}
if(b3==0){people[3]=1;}
if(b4==0){people[4]=1;}
if(b5==0){people[5]=1;}
if(b6==0){people[6]=1;}
if(b7==0){people[7]=1;}
}
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