W3School TIY Editor
W3School 在线教程
改变方向
暗黑模式
运行代码
<html> <head> <script type="text/javascript"> function disablePassword() { document.getElementById("password1").disabled=true } </script> </head> <body> <form> <input type="password" id="password1" /> <input type="button" id="button1" onClick="disablePassword()" value="Disable password field" /> </form> </body> </html>