点击运行
<!DOCTYPE html> <html> <body> <h1>JavaScript HTML DOM</h1> <p>Hello World!</p> <p>Hello China!</p> <p id="demo"></p> <script> var myNodelist = document.querySelectorAll("p"); document.getElementById("demo").innerHTML = "第二段的 innerHTML 是：" + myNodelist[1].innerHTML; </script> </body> </html>
运行结果
