<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>Jay Skript And The Domsters</title>
<style type="text/css">
*{border:none;margin:0px;padding:0px;}
.number{ padding: 36px 0 28px;width:400px;margin:auto}
.minus{width: 30px; height: 30px; text-align: center;border: solid 1px #eaeaea; background: #f5f5f5; color: #9e9e9e;}
.numbox{border-top: solid 1px #eaeaea; border-bottom: solid 1px #eaeaea; height: 28px; width:60px; color: #333333; margin-left:-8px; text-align: center; background: transparent;}
.plus { margin-left: -8px;}
</style>
</head>
<body >
<div class="number">
购买数量:
<div class="mui-numbox">
<button class="minus" type="button" onclick="opera(‘val‘, false);">-</button>
<input class="numbox" type="number" id="val" value="0"/>
<button class="minus plus" type="button" onclick="opera(‘val‘, true);">+</button>
人次
</div>
<script type="text/javascript">
function opera(x, y) {
var rs = new Number(document.getElementById(x).value);
if (y) {
document.getElementById(x).value = rs + 1;
} else if( rs >0) {
document.getElementById(x).value = rs - 1;
}
}
</script>
</body>
</html>
原文地址：https://www.cnblogs.com/renewload/p/11227302.html
时间： 2024-08-29 20:41:38