<input type="number" oninput="value = value.replace(/[^\d]/g, '')" onKeypress="return(/[\d\.]/.test(String.fromCharCode(event.keyCode)))" autocomplete="off" lay-verify="required" placeholder="请输入手机号" name="username" id="username">
<input type="number" oninput="value = value.replace(/[^\d]/g, '')" onKeypress="return(/[\d\.]/.test(String.fromCharCode(event.keyCode)))" autocomplete="off" lay-verify="required" placeholder="请输入手机号" name="username" id="username">