谁能帮忙看一下下面的程序啊？

三水亦是哥

void Sci0_measure_process(unsigned char measure_dat)
{
    unsigned int  measure_temp_dat;
    unsigned char measure_temp_dat_hi;
    unsigned char measure_temp_dat_low;
    unsigned char measure_dat_third;
    unsigned char measure_dat_second;
    unsigned char measure_dat_first;
    /*数据处理*/
    measure_temp_dat_hi = measure_dat&0xF0;
    measure_temp_dat_hi = measure_dat>>4;
    measure_temp_dat_low = measure_dat&0x0F;
    measure_temp_dat = measure_temp_dat_hi*16+measure_temp_dat_low;
    measure_temp_dat = measure_temp_dat*2;
    measure_dat_third =(unsigned char) measure_temp_dat/100;
    measure_dat_second = (measure_temp_dat%100)/10;
    measure_dat_first= measure_temp_dat%10;


    Sci0_send_data(measure_dat_third+0x30);      //通过串口显示相应的数字  
    Sci0_send_strings_dot();                     //通过串口显示小数点  
    Sci0_send_data(measure_dat_second+0x30);     //通过串口显示相应的数字
    Sci0_send_data(measure_dat_first+0x30);      //通过串口显示相应的数字
    Sci0_send_strings_V();                       //通过V字符标识

}



/****************************************
measure_temp_dat_hi = measure_dat&0xF0;    measure_temp_dat_hi = measure_dat>>4;    measure_temp_dat_low = measure_dat&0x0F;    measure_temp_dat = measure_temp_dat_hi*16+measure_temp_dat_low;    measure_temp_dat = measure_temp_dat*2;****************************************/这段不知道是什么意思！

Say_Love-You

soft，，，，，，，，

三水亦是哥

Say_Love-You 发表于 2013-3-24 17:52
soft，，，，，，，，

什么意思？