<!DOCTYPE html>
<html>
<body>
<h1>JavaScript 比较</h1>
<p>把 5 赋值给 x，然后显示比较 (x == 5) 的值：</p>
<p id="demo"></p>
<script>
var x = 5;
document.getElementById("demo").innerHTML = (x == 5);
</script>
</body>
</html>