<input type="number" pattern="number" onkeyup="value=value.replace(/[^\d\.]/g,‘‘)" class="weui-input" id="odd_numbers" aria-describedby="inputGroupSuccess2Status" placeholder="请输入请料单号/扫描">
input标签 只能输入纯数字
原文：https://www.cnblogs.com/chenyanbin/p/12964510.html
