​x
 
<!DOCTYPE html>
<html>
<body>
​
<p>将 5 赋给 x，并显示比较的值 (x == 5)：</p>
​
<button onclick="myFunction()">试一试</button>
​
<p id="demo"></p>
​
<script>
function myFunction() {
  var x = 5;
  document.getElementById("demo").innerHTML = (x == 5);
}
</script>
​
</body>
</html>
​