简单教程
提交运行
代码编辑器:
<p>点击按钮以降序的索引方式循环数组</p> <button onclick="myFunction()">点我</button> <p id="demo"></p> <script> function myFunction() { var cars = ["BMW", "Volvo", "Saab", "Ford"]; var text = ""; var i; for (i = cars.length - 1; i >= 0; i--) { text += cars[i] + "<br>"; } document.getElementById("demo").innerHTML = text; } </script>
运行结果: