key.h

这是几个实现键盘操作的程序

//KEY DEFINE HEAD FILE
#define NO_KEY 0
#define KEY1   1
#define KEY2   2
#define KEY3   3
#define KEY4   4
#define KEY5   5
#define KEY6   6
#define KEY7   7
#define KEY8   8
#define KEY10 10
#define KEY11 11
#define KEY12 12
#define KEY13 13
#define KEY14 14
#define KEY15 15
#define KEY16 16
#define DOUBLE_KEY 99
bit FlgDoubleKey
sbit  COLUMN1_PIN=P2^4；	//扫描行
sbit  COLUMN2_PIN=P2^5；
sbit  COLUMN3_PIN=P2^6；
sbit  COLUMN4_PIN=P2^7；
unsigned char idata KeyData;
unsigned char idata KeyData1;
unsigned char idata KeyData2;
unsigned char idata KeyData3;
unsigned char idata KeyData4;
unsigned char idata KeyCount;

//END FILE