單片機計數器C程序

#define uchar unsigned char

uchar j,k,i,a,A1,A2,second;

sbit dula=P2^6;

sbit wela=P2^7;

uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,

0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};

void delay(uchar i)

{

for(j=i;j>0;j--)

for(k=125;k>0;k--);

}

void display(uchar sh_c,uchar g_c)

{

dula=0;

P0=table[sh_c];

dula=1;

dula=0;

wela=0;

P0=0xfe;

wela=1;

wela=0;

delay(5);

P0=table[g_c];

dula=1;

dula=0;

P0=0xfd;

wela=1;

wela=0;

delay(5);

}void main()

{

while(1)

{

second++;

if(second==60)

second=0;

A1=second/10;

A2=second%10;

for(a=50;a>0;a--)

{ display(A1,A2);};

} }這是0到59的妳改壹下就可以了~！