1.客户端代码 <script>function check()> 2.客户端调用 <input type="text" name="mytxt" onkeypress="return check()"> 相关文章: 2022-02-04 2022-12-23 2022-12-23 2022-12-23 2022-12-23 2022-12-23 2021-12-20