<p id="demo">点击按钮截取数组下标 1 到 2 的元素。</p> <button onclick="myFunction()">点我</button> <script> function myFunction(){ var fruits = ["Banana", "Orange", "Lemon", "Apple", "Mango"]; var citrus = fruits.slice(1,3); var x=document.getElementById("demo"); x.innerHTML=citrus; } </script>