程嶏清单5-9.txt

< linux网络编程工具>>配套源码

$year = 2000;
$leapyear =
    $year % 4 == 0
        ? $year % 100 == 0
          ? $year % 400 == 0
            ? 1
            : 0
          : 1
        : 0;
if($leapyear == 1){
   print "Yes.\n";
}
else{
   print "No.\n";
}
$year = 2001;
$leapyear =
    $year %   4 ? 0 :
    $year % 100 ? 1 :
    $year % 400 ? 0 : 1;
if($leapyear == 1){
   print "Yes.\n";
}
else{
   print "No.\n";
}