Mindboards

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int x,y,z; //this is where you make variables to work with. The int means that they are integers, and by the NXC/NBC (possibly all C) definition, they are 16 bit signed (positive or negative) values in the range of -32768 to 32767.
x=10;      //x now has the value of 10
y=5;      //y now has the value of 5
z=x+y      //z equals x (10) plus y (5), so z now equals 15

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SetSensorTouch(S1); //Set the port up for a touch sensor. It starts it reading the analog pin, in inactive mode.
SetSensorLight(S1); //Set the port up for a light sensor. It starts it reading the analog pin, in inactive mode. Also uses pin 5 to turn on and off the light.
SetSensorSound(S1); //Set the port up for a sound sensor. It starts it reading the analog pin, in inactive mode. Also uses pins 5 and 6.
SetSensorLowspeed(S1);   //Set the port up for a digital (I2C) sensor.
SetSensorUltrasonic(S1); //I can only assume it is similar to the SetSensorLowspeed command. I have never tested this function.
SetSensorColorFull(S1);  //For the 2.0 color sensor. It turns it on in multicolor mode, so it reads all three colors.
SetSensorColorRed(S1);   //For the 2.0 color sensor. It turns on the red light.
SetSensorColorGreen(S1); //For the 2.0 color sensor. It turns on the green light.
SetSensorColorBlue(S1);  //For the 2.0 color sensor. It turns on the blue light.
SetSensorColorNone(S1);  //For the 2.0 color sensor. It turns off all the lights.

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SetSensorMode(S1, IN_MODE_RAW);

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task main()
{
  SetSensorLight(S1);                          //Set it up as a light sensor
  SetSensorMode(S1, IN_MODE_RAW);              //Set it up to return the RAW values, 0-1023
  //SetSensorType(S1, IN_TYPE_LIGHT_INACTIVE); //use this line to turn the light off
  //SetSensorType(S1, IN_TYPE_LIGHT_ACTIVE);   //use this line to turn the light on
  while (true)                                 //repeat forever
  {
    Wait (50);                                 //slow down a little
    ClearScreen();                             //clear the screen
    NumOut(0,LCD_LINE1,SENSOR_1);              //display the value being returned by the light sensor (it will be the RAW value).
  }
}

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#define LeftMotor OUT_B

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#include "file.nxc"

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if (1==x){}
else{if(2==x){}
 else{if(3==x){}
  else{if(4==x){}
   else{if(5==x){}
   }
  }
 }
}

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switch (x){
 case 1:{}break;
 case 2:{}break;
 case 3:{}break;
 case 4:{}break;
 case 5:{}break;
}

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int x[10];//declare the array
x[0]=10;//element 0 equals 10
x[1]=5; //element 1 equals 5
x[2]=x[0]+x[1]; //element 2 equals elements 0+1, therefore the value of 15

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void TurnLeft(){
  OnFwd(OUT_C,100);
  OnRev(OUT_A,100);
}

void TurnRight(){
  OnFwd(OUT_A,100);
  OnRev(OUT_C,100);
}

void TurnOff(){
  Off(OUT_AC);
}

task main(){
  TurnLeft();
  Wait(1500);
  TurnRight();
  Wait(1500);
  TurnOff();
}