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> <form> 获取图片:<input type="file" id="imgfile"> </form> <p>单击下面按钮禁用上面的选择文件按钮。</p> <button onclick="disableElement()">禁用FileUpload</button> <script> function disableElement(){ document.getElementById("imgfile").disabled=true; } </script> </body> </html>
运行结果