数组排序（按字母顺序升序）- sort() - 在线编辑器

          <p id="demo">单击按钮升序排列数组。</p>
<button onclick="myFunction()">点我</button>
<script>
  function myFunction() {
    var fruits = ["Banana", "Orange", "Apple", "Mango"];
    fruits.sort();
    var x = document.getElementById("demo");
    x.innerHTML = fruits;
  }
</script>
        