先看一段代码(PHP例子) 1、表单代码(form.php): <?php header("Content-type: text/html; charset=utf8"); ?> <iframe name="testIframeName" style="display:none;"></iframe> <form target="testIframeName" method="post" action="formAction.php"> <input type="text" name="username"/> <input type="password" name="password"/> <input type="submit" value=" 提 交 " /> </form> 2、action代码(formAction.php): <?php echo "<script>alert('test....');</script>"; ?> OK,上面的代码非常简单,但实现了表单提交无刷新....哪这是为什么呢? 哦~其实很基础的东西......就是form标签的属性问题.....如图: 来源:https://www.cnblogs.com/Amagasaki/p/5059820.html 标签 form form表单提交 js代码 js