Jquery+javascript动态生成支付网页数字键盘
制作网页支付界面的时候，数字键盘适配不同的屏幕宽高比是一个很麻烦的事，所以我制作了一个根据屏幕宽高动态生成的数字键盘
运行截图：
实现代码
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文件路径}}\" >
<title>动态数字键盘</title>
</head>
<body>
<div class=\"pay-top\">
<img class=\"lklogo\" src=\"img/lianke.png\">
<div class=\"pay-shop-info\">
<span class=\"shop-name\">付款给：{{付款对象名}}</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>确认</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());
});
$(\'.pay\').click(function () {
alert(\"支付金额为\"+$paymoney.text())
});
})
</script>
<!--自适应布局-->
<script>
(function () {
var designW = 750; //设计稿宽
var font_rate = 100;
//适配
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\";
//监测窗口大小变化
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;
}
附带上退格符，将其放项目的img文件中，否则数字键盘退格符无法显示：
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