<!DOCTYPE html> <html> <body> <h1>Element 对象</h1> <h2>innerText 属性</h2> <button id="myBtn">试一试</button> <p>button 元素的文本内容是:</p> <p id="demo"></p> <p>Internet Explorer 9 及更早版本不支持 innerText 属性。</p> <script> let text = document.getElementById("myBtn").innerText; document.getElementById("demo").innerHTML = text; </script> </body> </html>