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> E-mail: <input type="email" id="myEmail"> <p>点击按钮设置 email 字段为只读。</p> <p><strong>提示:</strong> 为了查看效果,可以在点击按钮前后编辑 email 字段。</p> <button onclick="myFunction()">点我</button> <p id="demo"></p> <script> function myFunction() { document.getElementById("myEmail").readOnly = true; } </script> </body> </html>
运行结果