我是小白 各位能帮我看下哪里 出错了
#include<regx52.h>
#include"delay.h"
#include"key.h"
#include"init.h"
#define uchar unsigned char
#define uint unsigned int
void delay(unsigned int xms);
void init();
sbit led=P1^0;
sbit led1=P1^3;
sbit led2=P1^5;
unsigned char keynum;
void main()
{
init();
while(1)
{
keynum=key();
if(keynum)
{
if(keynumber=2) led1=~led1;
}
}
}
void Timer0_Routine() interrupt 1
{
static uchar cnt,cnt1;
TH0=0XB1;
TL0=0XF4;
cnt++;
cnt1++;
if(cnt>=50){cnt=0; led=~led;}
if(cnt1>=150){cnt1=0; led1=~led1;}
}
#include<reg52.h>
#include"delay.h"
unsigned char key()
{
unsigned char keynumber=0;
if(P3^2==0){delay(20);while(P3^2==0);keynumber=1;}
if(P3^3==0){delay(20);while(P3^3==0);keynumber=2;}
if(P3^4==0){delay(20);while(P3^4==0);keynumber=3;}
if(P3^5==0){delay(20);while(P3^5==0);keynumber=4;}
return keynumber;
}
compiling main.c...
main.c(21): warning C206: 'key': missing function-prototype
main.c(24): error C202: 'keynumber': undefined identifier
main.c - 1 Error(s), 1 Warning(s).
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