<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="renderer" content="webkit"> <link rel="stylesheet" href="./public.css"> <title>Title</title> <style> .form-box{ width: 50%; margin: 40px auto 0; } .form-box-other{ width: 100%; display: flex; margin-bottom: 30px; } .form-box-other span{ width: 200px; height: 50px; display: flex; align-items: center; justify-content: center; font-weight: 800; color: #8e8e8e; } .form-box-other input{ flex: 1; padding-left: 10px; } button{ display: block; width: 80%; margin: 0 auto; height: 50px; font-size: 20px; font-weight: 800; } #erro-tips{ display: block; width: 80%; margin: 0 auto; height: 50px; font-size: 20px; color: darkred; font-weight: 800; text-align: center; line-height: 50px; } </style> </head> <body> <div class="form-box"> <div class="form-box-other"> <span>You name</span> <input type="text" placeholder="You name"> </div> <div class="form-box-other"> <span>Your credit card</span> <input type="text" placeholder="Your credit card"> </div> <div class="form-box-other"> <span>Your Github address</span> <input type="text" placeholder="Your Github address"> </div> <div class="form-box-other"> <span>Your email address</span> <input type="text" placeholder="Your email address"> </div> <button id="submit">Submit</button> <span id="erro-tips"></span> </div> </body> </html> <script src="http://code.jquery.com/jquery-2.1.1.min.js"></script> <script> jQuery(function(){ var input = $(‘input‘); var submit = $(‘#submit‘); submit.click(function(){ if (!input[0].value) { $("#erro-tips").html("请填写完整手机号") } else if (!input[1].value) { $("#erro-tips").html("请填写您的信用卡") } else if (!input[2].value) { $("#erro-tips").html("请填写您的Github地址") } else if (!input[3].value) { $("#erro-tips").html("请填正确的邮箱地址") } else { $.ajax({ url: "//40.125.162.90:7800/api/user/info", type: "POST", data: { name: input[0].value, walletAddress: input[1].value, gitHub: input[2].value, email: input[3].value }, success:function (data) { if (data.code === ‘200‘) { $("#erro-tips").html("提交成功!感谢参与!") } else { $("#erro-tips").html(data.msg) } } }) } }) }) </script>