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Input Password name 属性
tryjsref_password_name2
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<!DOCTYPE html> <html> <body> <form> Password: <input type="password" id="myPsw" name="pw"> </form> <p>Click the buttons to display and/or change the value of the name attribute of the password field.</p> <button onclick="display()">Display name</button> <button onclick="change()">Change name</button> <script> function display() { var x = document.getElementById("myPsw").name; alert("The name of the password field is: " + x); } function change() { var x = document.getElementById("myPsw").name = "newPasswordName"; alert ("The name was changed to: " + x); } </script> </body> </html>