The continue statement skips the rest of the current iteration of a loop (for, while, or do...while). It continues by checking the conditional expression of the loop, and proceeding with any subsequent iterations.
The following code writes the value of 0 to 255 to the PWMpin, but skips the values in the range of 41 to 119.
for (int x = 0; x <= 255; x ++) {
if (x > 40 && x < 120) { // create jump in values
continue;
}
analogWrite(PWMpin, x);
delay(50);
}