The continue command will skip the rest of the current iteration of a loop and go to the next iteration. For example, if you enter
S := 0 for (j := 1, j <= 10; j++) { if (j == 5) {continue;} S := S + j; }
then S will be 50, which is the sum of the integers from 1 to 10 except for 5, since the loop never gets to S := S + j when j is equal to 5.