请教大神帮我解释一下这段程序 最好每行都能详细解释
void Delay_ms(unsigned int t)
{
unsigned int i,j;
for(i=0;i<t;i++)
for(j=0;j<120;j++)
;
}
void Delay(uint x)
{
while(--x);
}
//---------------1602--------------------------------------
void delayms(uint z) //延时N ms
{
uint x,y;
for(x=z;x>0;x--)
for(y=120;y>0;y--);
}
void write_com(uchar com) //1602液晶写指令
{
rs=0;
lcden=0;
LCDDATA=com;
delayms(1);
lcden=1;
delayms(2);
lcden=0;
}
void write_date(uchar date) //1602液晶写数据
{
rs=1;
lcden=0;
LCDDATA=date;
delayms(1);
lcden=1;
delayms(2);
lcden=0;
}
void init_lcd(void) //初始化液晶,及画面初始化
{
uchar num;
wela=0;
lcden=0;
write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
write_com(0x80);
for(num=0;num<13;num++) // " temper: ";
{
write_date(table[num]);
Delay(10);
}