fmpq.com
源代码：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Fmpq教程(fmpq.com)</title> </head> <body> <p id="demo">点击按钮截取第三个和第四个元素，使用负数。</p> <button onclick="myFunction()">点我</button> <script> function myFunction(){ var fruits = ["Banana", "Orange", "Lemon", "Apple", "Mango"]; var myBest = fruits.slice(-3,-1); var x=document.getElementById("demo"); x.innerHTML=myBest; } </script> </body> </html>
运行结果