Home
JS
JS
Tryit: JAVASCRIPT
运行 ❯
×
Change Orientation
Change Theme, Dark/Light
<!DOCTYPE html> <html> <body> <h3>如何访问文件上传按钮的演示</h3> <input type="file" id="myFile"> <p>点击“试一试”按钮禁用文件上传按钮。</p> <button onclick="myFunction()">试一试</button> <script> function myFunction() { var x = document.getElementById("myFile"); x.disabled = true; } </script> </body> </html>