||here is an example using the and plus the or operator
or
a || b
&&
and
a && b
!
not
1a
if(( 2 < 3 && 3 > 1 ) || ( 2>0 && 0>-1 ))In this example we use the not operator
print "this is true";
else
print "this is false";
if(!(5 < 3 && 3 > 1 ))
print "this is False";