【文件属性】：
文件名称：矩阵键盘(c写的) 调试可用
文件大小：3KB
文件格式：C
更新时间：2013-06-06 13:14:10
键盘 矩阵
#include
#define BYTE unsigned char
#define WORD unsigned int
#define TH_M1 (65536-in_t)/256;//赋值
#define TL_M1 (65536-in_t)%256
unsigned int in_t=20000; //计数值,50MS
unsigned int count=0;
unsigned int count1;
unsigned int init=3333;
unsigned char key_numb;
unsigned char temp[]={0x00,0x00,0x00,0x00};
