next alters the ordinary sequential flow of execution. However,
next causes execution to skip past the rest of the innermost enclosing looping block without terminating the block. It is used like this:
 If there's a
continueblock for the loop, which we haven't discussed,
nextgoes to the beginning of the
continueblock rather than the end of the block. Pretty close.
firstpart; if (
somepart; next; }
otherpart; # next comes here }
somecondition is true, then
somepart is executed, and
otherpart is skipped around.