C语言 单片机 数字钟

#include<reg52.h>

sbit ksec=P3^0;

sbit kmin=P3^1;

sbit khour=P3^2;

unsigned char secshi=0,secge=0,minshi=0,minge=0,hourshi=0,hourge=0;

unsigned int num=0,sec=0,min=0,hour=0;

unsigned char code table[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};

void delay(unsigned int z)

{

unsigned int x,y;

for(x=z;x>0;x--)

for(y=110;y>0;y--);

}

void keyscan();

void display();

void main()

{TMOD=0x01;

TH0=(65536-50000)/256;

TL0=(65536-50000)%256;

EA=1;ET0=1;TR0=1;

while(1)

{display();

keyscan();

}

}

void time0() interrupt 1

{num++;

TH0=(65536-50000)/256;

TL0=(65536-50000)%256;

}

void display()

{if(num==20)

{num=0;

sec++;

if(sec==60)

{sec=0;

min++;

if(min==60)

{min=0;

hour++;

if(hour==24)

{hour=0;

min=0;

sec=0;

}

}

}

}

secge=sec%10;

secshi=sec/10;

minge=min%10;

minshi=min/10;

hourge=hour%10;

hourshi=hour/10;

P2=0xfe;

P0=table[secge];

delay(5);

P2=0xfd;

P0=table[secshi];

delay(5);

P2=0xfb;

P0=0x40;

delay(5);

P2=0xf7;

P0=table[minge];

delay(5);

P2=0xef;

P0=table[minshi];

delay(5);

P2=0xdf;

P0=0x40;

delay(5);

P2=0xbf;

P0=table[hourge];

delay(5);

P2=0x7f;

P0=table[hourshi];

delay(5);

}

void keyscan()

{if(ksec==0)

{delay(10);

if(ksec==0)

{sec++;

if(sec>=60)

sec=0;

}

while(ksec==0)

display();}

if(kmin==0)

{delay(10);

if(kmin==0)

{min++;

if(min>=60)

min=0;

}

while(kmin==0)

display();

}

if(khour==0)

{delay(10);

if(khour==0)

{hour++;

if(hour>=60)

hour=0;

}

while(khour==0)

display();

}

}

已经编译通过了：发现的错误很多！ 你自己比对一下吧!

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