JS:表单登陆验证
2022/7/14 23:20:23
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<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html;charset=UTF-8"> <title></title> </head> <body> <style> #p1, #p2 { visibility: hidden; } </style> <div> email <input type="text" id="email"> <p id="p1">邮箱格式错误</p> password <input type="password" id="pwd"> <p id="p2">邮箱或密码错误</p> <button id="btn">登录</button> </div> <script> var btn = document.getElementById('btn'); btn.onclick = function () { var email = document.getElementById('email'); var emailv = email.value; var pwd = document.getElementById('pwd').value; console.log(emailv,pwd); var emailvreg=/^[A-Za-z0-9\u4e00-\u9fa5]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/; var pwdreg=/[A-Za-z0-9]/; if(emailvreg.test(emailv)&&pwdreg){ document.querySelector('#p1').style.visibility='hidden'; document.querySelector('#p2').style.visibility='hidden' alert("登录成功"); }else{ document.querySelector('#p2').style.visibility='visible'; document.querySelector('#p1').style.visibility='visible'; } } </script> </body> </html>
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