W3School TIY Editor
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<!DOCTYPE html> <html> <body> <h1>Element 对象</h1> <h2>isContentEditable 属性</h2> <p id="myP" contenteditable="true">我是 myP。我可编辑吗？</p> <p id="demo"></p> <script> let answer = document.getElementById("myP").isContentEditable; let text = "myP 不可编辑。" if (answer == true) { text = "myP 可编辑。请尝试修改此文本。" } document.getElementById("demo").innerHTML = text; </script> </body> </html>