
<!DOCTYPE html>
<html>
<head>
<script>
function Bian(){
x=document.getElementById('text');
c=document.getElementById('but');
if (x.innerHTML.match("Paragraph"))
{
x.innerHTML="(╯‵□′)╯︵┻━┻";
c.innerHTML="再点";
}else{
x.innerHTML="A Paragraph.";
c.innerHTML="点吧";
}
}
</script>
</head>
<body>
<h1>My Web Page</h1>
<p id="text">A Paragraph.</p>
<button id="but" onclick="Bian()">点吧</button>
</body>
</html>



