#include "mega16.h"
#include "1602.h"
#include "key.h"
float k1,k2; //记录最终输入运算的两个数
uint one,two,three,four; //记录每次输入的数字
uint flag;//计数标志位
uint flag1,flag2; //第一个数 第二个数 完成标志位
uint flag3;//记录加减乘除标志位
long Result; //最后运算的结果
void main()
{
init();//液晶初始化
// write_com(0x80+15);
// write_date('0');
Init_Keypad(); //键盘初始化
flag1 = 1;
while(1)
{
Key_Event();//扫描键盘
if(key_Flag == 1)
{
key_Flag = 0;
if(key_val <= 10) //小于10则为需要的数字
{
if(flag1) //flag1为1表示正在输入第一个数字
{
switch(flag)
{
case 0:
flag = 1;
one = key_val%10;
write_com(0x80+6);
write_date(tab[key_val]);
k1 = (float)one;
break;
case 1:
flag = 2;
two = key_val%10;
write_com(0x80+7);
write_date(tab[key_val]);
k1 = (float)(one*10 + two);
break;
case 2:
flag = 3;
three = key_val%10;
write_com(0x80+8);
write_date(tab[key_val]);
k1 = (float)(one*100 + two * 10 + three);
break;
case 3:
flag = 4;
four = key_val%10;
write_com(0x80+9);
write_date(tab[key_val]);
k1 = (float)(one*1000 + two * 100 + three*10 + four);
break;
case 4:
flag = 0;
break;
}
}
if(flag2) //flag2为1表示正在输入第2个数字
{
switch(flag)
{
case 0:
flag = 1;
one = key_val%10;
write_com(0x80+12);
write_date(tab[key_val]);
k2 = (float)one;
break;
case 1:
flag = 2;
two = key_val%10;
write_com(0x80+13);
write_date(tab[key_val]);
k2 = (float)(one*10 + two);
break;
case 2:
flag = 3;
three = key_val%10;
write_com(0x80+14);
write_date(tab[key_val]);
k2 = (float)(one*100 + two * 10 + three);
break;
case 3:
flag = 4;
four = key_val%10;
write_com(0x80+15);
write_date(tab[key_val]);
k2 = (float)(one*1000 + two * 100 + three*10 + four);
break;
case 4:
flag = 0;
break;
}
}
}
else if(key_val>=13 || key_val <= 16)//判断运算符
{
flag1 = 0;
flag2 = 1;
flag = 0;
switch(key_val)
{
case 13:
write_com(0x80+11);
write_date('+');
flag3 = 1;
break;
case 14:
write_com(0x80+11);
write_date('-');
flag3 = 2;
break;
case 15:
write_com(0x80+11);
write_date('*');
flag3 = 3;
break;
case 16:
write_com(0x80+11);
write_date('/');
flag3 = 4;
break;
}
}
if(key_val == 12) //等于
{
switch(flag3)
{
case 1:
Result = k1 + k2;
write_com(0xc0);
write_date(tab[Result/100000]);
write_date(tab[Result%100000/10000]);
write_date(tab[Result%10000/1000]);
write_date(tab[Result%1000/100]);
write_date(tab[Result%100/10]);
write_date(tab[Result%10]);
break;
case 2:
Result = k1 - k2;
write_com(0xc0);
if(Result < 0)
{
write_date('-');
Result = 0 - Result;
}
write_date(tab[Result/100000]);
write_date(tab[Result%100000/10000]);
write_date(tab[Result%10000/1000]);
write_date(tab[Result%1000/100]);
write_date(tab[Result%100/10]);
write_date(tab[Result%10]);
break;
case 3:
Result = k1 * k2;
write_com(0xc0);
write_date(tab[Result/100000]);
write_date(tab[Result%100000/10000]);
write_date(tab[Result%10000/1000]);
write_date(tab[Result%1000/100]);
write_date(tab[Result%100/10]);
write_date(tab[Result%10]);
break;
case 4:
//write_com(0x80+11);
//write_date('/');
Result = k1*100 / k2;
write_com(0xc0);
//write_date(tab[Result/100000]);
//write_date(tab[Result%100000/10000]);
write_date(tab[Result%10000/1000]);
write_date(tab[Result%1000/100]);
write_date('.');
write_date(tab[Result%100/10]);
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