当我使用Arduino进行编码时，我的代码的最后几行出现了问题。该程序说是
'}'令牌之前的预期声明
但我不确定如何解决此问题。该代码在下面，并且错误在代码的最后一行。我不确定为什么有问题的最后一个括号不在“框”或代码中，但问题仍然存在。
void loop(){
if(digitalRead(pirPin) == HIGH){
digitalWrite(ledPin, HIGH); //the led visualizes the sensors output pin state
if(lockLow){
//makes sure we wait for a transition to LOW before any further output is made:
lockLow = false;
Serial.println("---");
Serial.print("motion detected at ");
Serial.print(millis()/1000);
Serial.println(" sec");
delay(50);
}
takeLowTime = true;
}
if(digitalRead(pirPin) == LOW){
digitalWrite(ledPin, LOW); //the led visualizes the sensors output pin state
if(takeLowTime){
lowIn = millis(); //save the time of the transition from high to LOW
takeLowTime = false; //make sure this is only done at the start of a LOW phase
}
//if the sensor is low for more than the given pause,
//we assume that no more motion is going to happen
if(!lockLow && millis() - lowIn > pause){
//makes sure this block of code is only executed again after
//a new motion sequence has been detected
lockLow = true;
for (int pos1 = 0; pos1 <= 89; pos1 += 1)
{
servo1.write(pos1);
delay(10);
}
for (int pos1 = 89; pos1 >= 1; pos1 -= 1)
{
servo1.write(pos1);
delay(10);
}
Serial.print("motion ended at "); //output
Serial.print((millis() - pause)/1000);
Serial.println(" sec");
delay(50);
{
if(digitalRead(pirPin) == HIGH){
digitalWrite(ledPin, HIGH); //the led visualizes the sensors output pin state
if(lockLow){
//makes sure we wait for a transition to LOW before any further output is made:
lockLow = false;
Serial.println("---");
Serial.print("motion detected at ");
Serial.print(millis()/1000);
Serial.println(" sec");
delay(50);
}
takeLowTime = true;
}
if(digitalRead(pirPin) == LOW){
digitalWrite(ledPin, LOW); //the led visualizes the sensors output pin state
if(takeLowTime){
lowIn = millis(); //save the time of the transition from high to LOW
takeLowTime = false; //make sure this is only done at the start of a LOW phase
}
//if the sensor is low for more than the given pause,
//we assume that no more motion is going to happen
if(!lockLow && millis() - lowIn > pause){
//makes sure this block of code is only executed again after
//a new motion sequence has been detected
lockLow = true;
for (int pos1 = 0; pos1 <= 89; pos1 += 1)
{
servo1.write(pos1);
delay(10);
}
for (int pos1 = 89; pos1 >= 1; pos1 -= 1)
{
servo1.write(pos1);
delay(10);
}
Serial.print("motion ended at "); //output
Serial.print((millis() - pause)/1000);
Serial.println(" sec");
delay(50);
}
}
} //THE ISSUE IS HERE
答案 0 :(得分：0)
我通过UNIX indent工具运行了您的代码。它适用于大多数平台。
缩进不仅使外观漂亮，还使代码保持可读性。另外，还有许多程序员编辑器会找到“匹配的”括号/括号（例如：vim中的'％'）。
在我看来，代码似乎缺少if条件或类似if ( digitalRead( pirPin ) == HIGH )之类的条件，因为在{中有一个块-或至少有一段没有明确的原因。
基本上，您的代码缺少3个}，其中之一正在关闭上述代码块。仔细阅读后，应该不难修复。但是如果失败，只需将它们添加到最后即可。
void loop( )
{
if ( digitalRead( pirPin ) == HIGH )
{
digitalWrite( ledPin, HIGH ); //the led visualizes the sensors output pin state
if ( lockLow )
{
//makes sure we wait for a transition to LOW before any further output is made:
lockLow = false;
Serial.println( "---" );
Serial.print( "motion detected at " );
Serial.print( millis( ) / 1000 );
Serial.println( " sec" );
delay( 50 );
}
takeLowTime = true;
}
if ( digitalRead( pirPin ) == LOW )
{
digitalWrite( ledPin, LOW ); //the led visualizes the sensors output pin state
if ( takeLowTime )
{
lowIn = millis( ); //save the time of the transition from high to LOW
takeLowTime = false; //make sure this is only done at the start of a LOW phase
}
//if the sensor is low for more than the given pause,
//we assume that no more motion is going to happen
if ( !lockLow && millis( ) - lowIn > pause )
{
//makes sure this block of code is only executed again after
//a new motion sequence has been detected
lockLow = true;
for ( int pos1 = 0; pos1 <= 89; pos1 += 1 )
{
servo1.write( pos1 );
delay( 10 );
}
for ( int pos1 = 89; pos1 >= 1; pos1 -= 1 )
{
servo1.write( pos1 );
delay( 10 );
}
Serial.print( "motion ended at " ); //output
Serial.print( ( millis( ) - pause ) / 1000 );
Serial.println( " sec" );
delay( 50 );
{
if ( digitalRead( pirPin ) == HIGH )
{
digitalWrite( ledPin, HIGH ); //the led visualizes the sensors output pin state
if ( lockLow )
{
//makes sure we wait for a transition to LOW before any further output is made:
lockLow = false;
Serial.println( "---" );
Serial.print( "motion detected at " );
Serial.print( millis( ) / 1000 );
Serial.println( " sec" );
delay( 50 );
}
takeLowTime = true;
}
if ( digitalRead( pirPin ) == LOW )
{
digitalWrite( ledPin, LOW ); //the led visualizes the sensors output pin state
if ( takeLowTime )
{
lowIn = millis( ); //save the time of the transition from high to LOW
takeLowTime = false; //make sure this is only done at the start of a LOW phase
}
//if the sensor is low for more than the given pause,
//we assume that no more motion is going to happen
if ( !lockLow && millis( ) - lowIn > pause )
{
//makes sure this block of code is only executed again after
//a new motion sequence has been detected
lockLow = true;
for ( int pos1 = 0; pos1 <= 89; pos1 += 1 )
{
servo1.write( pos1 );
delay( 10 );
}
for ( int pos1 = 89; pos1 >= 1; pos1 -= 1 )
{
servo1.write( pos1 );
delay( 10 );
}
Serial.print( "motion ended at " ); //output
Serial.print( ( millis( ) - pause ) / 1000 );
Serial.println( " sec" );
delay( 50 );
}
}
} //THE ISSUE IS HERE
答案 1 :(得分：-1)