html运行实例（jsck_state_for_s1

代码示例：（标识：jsck_state_for_s1_om）

<!DOCTYPE html>
<html>
<body>

<p>单击按钮来循环遍历名为“cars”的数组的索引，从索引号 2 开始。</p>

<button onclick="myFunction()">试一试</button>

<p id="demo"></p>

<script>
function myFunction() {
  var cars = ["BMW", "Volvo", "Saab", "Ford"];
  var i = 2;
  var len = cars.length;
  var text = "";

  for (; i < len; i++) {
    text += cars[i] + "<br>";
  }

  document.getElementById("demo").innerHTML = text;
}
</script>

</body>
</html>