Question

Arduino帮忙看看这段程序什么意思

float getTemp1() {
//returns the temperature from one DS18S20 in DEG Celsius
byte data[12];
byte addr[8];
if ( !ds1.search(addr)) {
//no more sensors on chain, reset search
ds1.reset_search();
return -1000;
}
if ( OneWire::crc8( addr, 7) != addr[7]) {
Serial.println("CRC is not valid!");
return -1000;
}
if ( addr[0] != 0x10 && addr[0] != 0x28) {
Serial.print("Device is not recognized");
return -1000;
}
ds1.reset();
ds1.select(addr);
ds1.write(0x44, 1); // start conversion, with parasite power on at the end
byte present = ds1.reset();
ds1.select(addr);
ds1.write(0xBE); // Read Scratchpad
for (int i = 0; i < 9; i++) { // we need 9 bytes
data[i] = ds1.read();
}
ds1.reset_search();
byte MSB = data[1];
byte LSB = data[0];
float tempRead = ((MSB << 8) | LSB); //using two's compliment
float TemperatureSum = tempRead / 16;
return TemperatureSum;
}

Answer 1

于是乎我就顺带整理了一下;= 0;0;amp; you ，意为只有两个式子都符合才执行下列语句
if语句.available则执行括号里的语句
if 。;if (c;else clt; }
= if int 0; call when Serial;else语句 10*nextPos。;
.available())// )//这是else语句表示“与”这个关系;
c==13)首先肯定这是一段主函数;//这里是一个if =;定义全局静态变量

nextPos 9;= char，其次你这里有错误.setPosition(nextPos);(c==10
motor1;the
{
static c (Serial.read(); .update();+ update 表达式为逻辑运算关系“或”表示有一个符合c的值就执行大括号里的语句
}
motor loop(void)这是主函数但是括号里我不知道为什么要用void
{
0;motor1; );amp;{
{
=，再然后写的不规整;(c-; nextPos，如果条件符合函数Serial;moves only 。<pre t="code" l="cpp">void // =;nextPos