<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>表单验证</title> <style> .title{ font-weight: bold; font-size:18px; } .names{ width:358px; height:42px; margin-left:38px; -webkit-border-radius:5px; -moz-border-radius:5px; border-radius:5px; } .btn{ width:78px; height:42px; margin-left:15px; background: rgb(46,122,184); color: #fff; font-size:18px; font-weight: bold; outline: none; border:0; border-radius: 5px; } .prompt{ margin-left:78px; font-size:16px; color: #ccc; } </style> </head> <body> <form action="#"> <p> <label for="names">名称</label> <input type="text" id="names" name="user_name" value=""> <button type="submit">验证</button> </p> <p>必填,长度为4~16个字符</p> </form> </body> <script> var names=document.getElementById("names").value; console.log(names); </script> </html>
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