四个按键对常用数值调整代码

/*************************************************************

**四个按键数值调整，一个移位，两个加减，一个确定

**针对0~65536数值区间，任意数值

**light

**2012-3-28

*************************************************************/

//数值调整结构

typedefstruct_num_cal

{

unsignedintnum_temp;//变量值

unsignedintbit;//位

unsignedintbit_max;//位数

unsignedinttmp_bit[5];//存放各个位值

}num_cal;

num_calnum_cal_tmp;//数值调整结构全局变量

/*************************************************************

**number_calc

**temp_value:要调整的值

**bit_max：数据位数

**2012-3-28

*************************************************************/

voidnumber_calc(unsignedinttemp_value,unsignedintbit_max)

{

num_cal_tmp.num_temp=temp_value;

num_cal_tmp.tmp_bit[0]=num_cal_tmp.num_temp%10;

num_cal_tmp.tmp_bit[1]=(num_cal_tmp.num_temp%100)/10;

num_cal_tmp.tmp_bit[2]=(num_cal_tmp.num_temp%1000)/100;

num_cal_tmp.tmp_bit[3]=(num_cal_tmp.num_temp%10000)/1000;

num_cal_tmp.tmp_bit[4]=num_cal_tmp.num_temp/10000;

num_cal_tmp.bit_max=bit_max-1;

}

switch(key_value):

{

casekey_back://移动光标，由低位向高位移动

num_cal_tmp.bit++;

if(num_cal_tmp.bit>num_cal_tmp.bit_max)

{

num_cal_tmp.bit=0;

}

break;

casekey_up://加

num_cal_tmp.tmp_bit[num_cal_tmp.bit]++;

if(num_cal_tmp.tmp_bit[num_cal_tmp.bit]>9)

{

num_cal_tmp.tmp_bit[num_cal_tmp.bit]=0;

}

break;

casekey_down://减

if(num_cal_tmp.tmp_bit[num_cal_tmp.bit]==0)

{

num_cal_tmp.tmp_bit[num_cal_tmp.bit]=9;

}

else

{

num_cal_tmp.tmp_bit[num_cal_tmp.bit]--;

}

break;

casekey_enter://确定键

temp_value=num_cal_tmp.tmp_bit[4]*10000+num_cal_tmp.tmp_bit[3]*1000+num_cal_tmp.tmp_bit[2]*100+num_cal_tmp.tmp_bit[1]*10+num_cal_tmp.tmp_bit[0];

break;

}