错在那里？
#include <reg51.h>
#include <intrins.h>
unsigned char get_char(void);
void delay(void);
main()
{
unsigned char keybuf [16],count;
SCON=0;
ES=0;
EA=0;
count=0;
while (count<16) keybuf [count++], get_char();
}
unsigned char get_char(void)
{
unsigned char key_code,column=0,mask=0x00;
TI=0;
SBUF=mask;
while (TI==0);
while(1) {
while((P3^4&P3^5)!=0);
delay( );
if((P3^4&P3^5)==0)continue ;
else break;
}
mask=0xfe;
while(1)
{
TI=0;
SBUF=mask ;
while(TI==0);
if((P3^4&P3^5)!=0)
{
mask= _crol_(mask,1);
column||
if(column>=8) column=0;
continue;
}
else break;
}
if(P3^4==0) key_code=column ;
else key_code=8+column;
return(key_code);
}
void delay(void)
{
unsigned int I= 10; /*延时10ms*/
while (I--); /*两减号间只能有一个空格*/
}
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