<?php
$t=date("50");
if ($t<"10") {
echo "Have a good morning!";
} elseif ($t<"20") {
echo "Have a good day!";
} else {
echo "Have a good night!";
}
?>
<?php$num=100;
switch ($num) {
case 10:
echo("好");
break;
case 20:
echo("很好");
break;
default:
echo("不好");
break;
}
?>原文地址:http://duai2010.blog.51cto.com/1591629/1707277