<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>document</title></head><body> <input type="password" id="password" /> <button id="show">显示/隐藏密码</button></body><script> { let show = document.querySelector('#show'); let password = document.querySelector('#password') show.onclick = () => { if(password.getAttribute('type') !== 'text'){ password.setAttribute('type','text') }else{ password.setAttribute('type','password') } } }</script></html>
