<html>
<head>
<meta charset="utf-8">
<title>js</title>
</head>
<body>
<p>点击下面的按钮，会显示出基于今日日期的消息：</p>
<button οnclick="myFunction()">点击这里</button>
<p id="demo"></p>
<script>
function myFunction()
{
var x;
var d=new Date().getDay();
switch (d)
{
case 2:
case 3:
case 4:
case 6:
x="Today it's Saturday";
break;
case 0:
x="Today it's Sunday";
break;
default:
x="Looking forward to the Weekend";
}
document.getElementById("demo").innerHTML=x;
}
</script>
<?php
switch ($i)
{
case 0:
case 1:
case 2:
echo "i is less than 3 but not negative";
break;
case 3:
echo "i is 3";
}
?>
</body>
</html>
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