用按键和定时器中断来控制，程序编译错误，帮我看一看

2018-10-19 20:19

程序如下：
#include<at89x52.h>
#define uchar unsigned char
#define uint unsigned uint
sbit k1=P3^2;
uchar code tab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};

void delay10ms(uchar a)
{
uchar b,c;
for(c=1;c>0;c--)
      for(b=38;b>0;b--)
         for(a=130;a>0;a--);
}

void keyscan()
{
uint flag=0;
if(k2==0X00)
{
  delay10ms(1);
  if(k2==0X00)
{
   P2=0xFF;
   flag=!flag;
}
}
}
void main()
{
  TMOD=0x02;
  TH0=0xf6;
  TL0=0xf6;
  ET0=1;EA=1;
  TR0=1;
  while(1);
}
void time() interrupt 1 using 0
{
  uint flag=0;
  uchar temp;
  uchar i;
  if(flag==1)
  {
temp=0x80;
for(i=0;i<4;i++)
{
   P0=tab[i+1];
   P2=~temp;
   temp=temp>>1;
   P2=0xff;
}
  }

编译结果：
Build target 'Target 1'
assembling STARTUP.A51...
compiling 外部中断和定时器中断显示数码管（1234）.c...
外部中断和定时器中断显示事牍埽?234）.C(17): error C141: syntax error near 'flag'
外部中断和定时器中断显示事牍埽?234）.C(39): error C141: syntax error near 'flag'
Target not created