Jquery+javascript實現支付網頁數字鍵盤

更新時間：2020年12月21日 09:49:38 作者：юноша 2

這篇文章主要為大家詳細介紹了Jquery+javascript實現支付網頁數字鍵盤，文中示例代碼介紹的非常詳細，具有一定的參考價值，感興趣的小伙伴們可以參考一下

Jquery+javascript動態(tài)生成支付網頁數字鍵盤

制作網頁支付界面的時候，數字鍵盤適配不同的屏幕寬高比是一個很麻煩的事，所以我制作了一個根據屏幕寬高動態(tài)生成的數字鍵盤

運行截圖：

實現代碼

html:

<!DOCTYPE html>
<html>
<head>
 <meta charset="utf-8">
 <meta content="initial-scale=1.0,maximum-scale=1.0,user-scalable=no" name="viewport">
 <meta content="yes" name="apple-mobile-web-app-capable">
 <meta content="black" name="apple-mobile-web-app-status-bar-style">
 <meta content="telephone=no" name="format-detection">
 <meta content="email=no" name="format-detection">
 <link rel="stylesheet" href="{{你的css文件路徑}}" >
 <title>動態(tài)數字鍵盤</title>
</head>
<body>
 <div class="pay-top">
 <img class="lklogo" src="img/lianke.png">
 <div class="pay-shop-info">
 <span class="shop-name">付款給：{{付款對象名}}</span>
 </div>
 <div class="paymoneylogo">
 <span>￥</span>
 </div>
 <label class="inputlabel" id="paymoney" type="text"></label>
 </div>
 <div class="payinfo">
 <table cellspacing="0" cellpadding="0">
 <tr>
 <td class="paynum">1</td>
 <td class="paynum">2</td>
 <td class="paynum">3</td>
 <td id="pay-return">
  <div class="keybord-return"></div>
 </td>
 </tr>
 <tr>
 <td class="paynum">4</td>
 <td class="paynum">5</td>
 <td class="paynum">6</td>
 <td rowspan="3" class="pay">
  <a href="javascript:return false;" >
  <div class="a-pay">
  <p>確認</p>
  <p>支付</p>
  </div>
  </a>
 </td>
 </tr>
 <tr>
 <td class="paynum">7</td>
 <td class="paynum">8</td>
 <td class="paynum">9</td>
 </tr>
 <tr>
 <td id="pay-zero" colspan="2" class="payzero">0</td>
 <td id="pay-float">.</td>
 </tr>
 </table>
 </div>
</body>
<script src="./js/jquery.js"></script>
<script type="text/javascript">
 $(function () {
 $(".payinfo").slideDown();
 var $paymoney = $("#paymoney");
 $("#paymoney").focus(function () {
 $(".payinfo").slideDown();
 document.activeElement.blur();
 });
 $(".paynum").each(function () {
 $(this).click(function () {
 if (($paymoney.text()).indexOf(".") != -1 && ($paymoney.text()).substring(($paymoney.text()).indexOf(".") + 1, ($paymoney.text()).length).length == 2) {
  return;
 }
 if ($.trim($paymoney.text()) == "0") {
  return;
 }
 if (parseInt($paymoney.text()) > 10000 && $paymoney.text().indexOf(".") == -1) {
  return;
 }
 $paymoney.text($paymoney.text() + $(this).text());
 });
 });

 $("#pay-return").click(function () {
 $paymoney.text(($paymoney.text()).substring(0, ($paymoney.text()).length - 1));
 if (!$paymoney.text()) {
 $('.pay').addClass('pay-disabled').find('a').attr('href', 'javascript:return false;');
 }
 });

 $("#pay-zero").click(function () {
 if (($paymoney.text()).indexOf(".") != -1 && ($paymoney.text()).substring(($paymoney.text()).indexOf(".") + 1, ($paymoney.text()).length).length == 2) {
 return;
 }
 if ($.trim($paymoney.text()) == "0") {
 return;
 }
 if (parseInt($paymoney.text()) > 10000 && $paymoney.text().indexOf(".") == -1) {
 return;
 }
 $paymoney.text($paymoney.text() + $(this).text());
 });

 $("#pay-float").click(function () {
 if ($.trim($paymoney.text()) == "") {
 return;
 }

 if (($paymoney.text()).indexOf(".") != -1) {
 return;
 }

 if (($paymoney.text()).indexOf(".") != -1) {
 return;
 }
 $paymoney.text($paymoney.text() + $(this).text());
 });
 $('.pay').click(function () {
 alert("支付金額為"+$paymoney.text())
 });
 })
</script> 
<!--自適應布局-->
<script>
 (function () {
 var designW = 750; //設計稿寬
 var font_rate = 100;
 //適配
 document.getElementsByTagName("html")[0].style.fontSize = document.body.offsetWidth / designW * font_rate + "px";
 document.getElementsByTagName("body")[0].style.fontSize = document.body.offsetWidth / designW * font_rate + "px";

 //監(jiān)測窗口大小變化
 window.addEventListener("onorientationchange" in window ? "orientationchange" : "resize", function () {
 document.getElementsByTagName("html")[0].style.fontSize = document.body.offsetWidth / designW * font_rate + "px";
 document.getElementsByTagName("body")[0].style.fontSize = document.body.offsetWidth / designW * font_rate + "px";
 }, false);
 })();
</script>
</html>

css

@CHARSET "UTF-8";
html,body{
 background-color:#fff;
}
.pay-top{
 position: absolute;
 width: 100%;
 height:60%;
 background: #fff;
}
.pay-shop-info {
 position: absolute;
 width: 90%;
 left:5%;
 text-align: right;
 top:3.4rem;
 font-size:0.3rem ;
 }

.paymoneylogo {
 position: absolute;
 width: 90%;
 left:5%;
 top:4rem;
 height: 1.3rem;
 border-bottom: 0.02rem solid #bfbfbf;
 -webkit-border-radius: 0.02rem;
 -moz-border-radius: 0.02rem;
 border-radius: 0.02rem;
 background: #fff;
}
.inputlabel{
 position: absolute;
 width: 90%;
 left:5%;
 top:4rem;
 height: 1.3rem;
 text-align: right;
}
.lklogo{
 position: absolute;
 height: 1.2rem;
 width: 50%;
 left:25%;
 top:0.8rem;
}
.payinfo{
 display:none;
}
.payinfo .paynum {
 font-size: 0.6rem;
 color: #424857;
}

.payinfo .payzero {
 font-size: 0.6rem;
 color: #424857;
}
table{
 width:100%; 
 height:50%;
 position:absolute;
 bottom:0;
 background-color:white;
 background-top:none;
}
table tr td{
 text-align:center;
 width: 1.88rem;
 height: 1.26rem;
 font-family: "Microsoft YaHei";
 font-weight: normal;
 border-right:1px solid #D9D9D9;
 border-top:1px solid #D9D9D9;
}
table tr td:active{
 background-color:#ECECEC;
}
.keybord-return{
 width: 1.88rem;
 height: 1.26rem;
 background:url(../img/keybord_return.png) no-repeat;
 background-size: 50% 50%;
 background-position: center;
}
.pay{
 color:#fff;
 font-size:0.4rem;
 background-color:#0259a1; 
}
.pay:active{
 background-color: #004198;
}
.pay a{
 display: block;
 position: relative;
 width: 100%;
 height: 100%;
 color: #fff;
 text-decoration: none; 
}
.a-pay {
 position: absolute;
 top: 50%;
 left: 50%;
 -webkit-transform: translate(-50%, -50%);
 -o-transform: translate(-50%, -50%);
 -moz-transform: translate(-50%, -50%);
 transform: translate(-50%, -50%);
}
.pay-disabled {
 background-color: #0259a1;
}

附帶上退格符，將其放項目的img文件中，否則數字鍵盤退格符無法顯示：