<input type="number" oninput="if(value.length > 11)value = value.slice(0, 11)" placeholder="请输入手机号">
注意:type="number" maxlength="11"同时存在,长度无效
<input type="number" oninput="if(value.length > 11)value = value.slice(0, 11)" placeholder="请输入手机号">
注意:type="number" maxlength="11"同时存在,长度无效