我认为这篇文章会帮助如果有人想用jQuery:

http://greatwebguy.com/programming/dom/default-html-button-submit-on-enter-with-jquery/

基本解决方案是:

$(function() {
    $("form input").keypress(function (e) {
    if ((e.which && e.which == 13) || (e.keyCode && e.keyCode == 13)) {
        $('input[type=submit].default').click();
        return false;
    }
    else {
        return true;
    }
    });
});

另一个我喜欢的是:

jQuery(document).ready(function() {
    $("form input, form select").live('keypress', function (e) {
        if ($(this).parents('form').find('button[type=submit].default, input[type=submit].default').length <= 0)
            return true;

        if ((e.which && e.which == 13) || (e.keyCode && e.keyCode == 13)) {
            $(this).parents('form').find('button[type=submit].default, input[type=submit].default').click();
            return false;
        }
        else {
            return true;
        }
    });
});

从你的评论来看:

结果就是，如果你有 多个表单提交给同一个 脚本，你不能依赖于提交 按钮来区分它们。

我在每个表单中放入一个<input type="hidden" value="form_name" />。

如果使用JavaScript提交:将提交事件添加到表单，而不是将事件单击到按钮。精明的用户不会经常触碰鼠标。

Andrezj的答案几乎是完美的……但这里有一个简单的跨浏览器解决方案。

取这样的形式:

<form>
    <input/>
    <button type="submit" value="some non-default action"/>
    <button type="submit" value="another non-default action"/>
    <button type="submit" value="yet another non-default action"/>

    <button type="submit" value="default action"/>
</form>

然后重构为:

<form>
    <input/>

    <button style="overflow: visible !important; height: 0 !important; width: 0 !important; margin: 0 !important; border: 0 !important; padding: 0 !important; display: block !important;" type="submit" value="default action"/>

    <button type="submit" value="some non-default action"/>
    <button type="submit" value="another non-default action"/>
    <button type="submit" value="yet another non-default action"/>
    <button type="submit" value="still another non-default action"/>

    <button type="submit" value="default action"/>
</form>

由于W3C规范指出多个提交按钮是有效的，但忽略了关于用户代理应该如何处理它们的指导，所以浏览器制造商只能按照他们认为合适的方式来实现。我发现他们要么提交表单中的第一个提交按钮，要么在当前有焦点的表单字段之后提交下一个提交按钮。

不幸的是，简单地添加一个显示样式:none;这是行不通的，因为W3C规范指出任何隐藏元素都应该从用户交互中排除。所以把它藏在众目睽睽之下吧!

上面是我最终投入生产的解决方案示例。按enter键触发默认表单提交，即使在DOM中出现其他非默认值并在默认提交按钮之前也是如此。与显式用户输入的鼠标/键盘交互的额外好处，同时避免JavaScript处理程序。

Note: tabbing through the form will not display focus for any visual element yet will still cause the invisible button to be selected. To avoid this issue, simply set tabindex attributes accordingly and omit a tabindex attribute on the invisible submit button. While it may seem out of place to promote these styles to !important, they should prevent any framework or existing button styles from interfering with this fix. Also, those inline styles are definitely poor form, but we're proving concepts here... not writing production code.

当您在一个表单中有多个提交按钮，并且用户按Enter键从文本字段提交表单时，这段代码将通过从按键事件调用表单上的提交事件来覆盖默认功能。代码如下:

$('form input').keypress(function(e){

    if ((e.which && e.which == 13) || (e.keyCode && e.keyCode == 13)){
        $(e.target).closest('form').submit(); return false;
    }
    else
        return true;
});

If you submit the form via JavaScript (i.e., formElement.submit() or anything equivalent), then none of the submit buttons are considered successful and none of their values are included in the submitted data. (Note that if you submit the form by using submitElement.click() then the submit that you had a reference to is considered active; this doesn't really fall under the remit of your question since here the submit button is unambiguous but I thought I'd include it for people who read the first part and wonder how to make a submit button successful via JavaScript form submission. Of course, the form's onsubmit handlers will still fire this way whereas they wouldn't via form.submit() so that's another kettle of fish...)

If the form is submitted by hitting Enter while in a non-textarea field, then it's actually down to the user agent to decide what it wants here. The specifications don't say anything about submitting a form using the Enter key while in a text entry field (if you tab to a button and activate it using space or whatever, then there's no problem as that specific submit button is unambiguously used). All it says is that a form must be submitted when a submit button is activated. It's not even a requirement that hitting Enter in e.g. a text input will submit the form.

我相信Internet Explorer会选择在源代码中首先出现的提交按钮;我有一种感觉，Firefox和Opera会选择标签索引最低的按钮，如果没有其他定义，就会退回到第一个定义的按钮。关于提交是否具有非默认值属性IIRC，也存在一些复杂性。

The point to take away is that there is no defined standard for what happens here and it's entirely at the whim of the browser - so as far as possible in whatever you're doing, try to avoid relying on any particular behaviour. If you really must know, you can probably find out the behaviour of the various browser versions, but when I investigated this a while back there were some quite convoluted conditions (which of course are subject to change with new browser versions) and I'd advise you to avoid it if possible!

我纠结于同样的问题，因为我在表单中间有一个提交按钮，可以重定向提交到另一个页面，就像这样:

<button type="submit" onclick="this.form.action = '#another_page'">More</button>

当用户按下Enter键时，单击的是这个按钮，而不是另一个提交按钮。

所以我做了一些基本的测试，创建了一个带有多个提交按钮和不同可见性选项的表单，并创建了一个onclick事件来提醒哪个按钮被单击:https://jsfiddle.net/aqfy51om/1/

我用于测试的浏览器和操作系统:

窗户

谷歌Chrome 43(来谷歌搜索:D) Mozilla Firefox 38 Internet Explorer 11 Opera 30.0

OS X

谷歌Chrome 43 Safari 7.1.6

尽管应用了可见性选项，但大多数浏览器都点击了第一个按钮，除了ie和Safari会单击第三个按钮，这是一个“隐藏”容器中的“可见”按钮:

<div style="width: 0; height: 0; overflow: hidden;">
    <button type="submit" class="btn btn-default" onclick="alert('Hidden submit button #3 was clicked');">Hidden submit button #3</button>
</div>

所以我的建议，也就是我自己的建议是:

如果你的表单有多个不同含义的提交按钮，那么在表单的开头包含一个默认动作的提交按钮，它可以是:

完全可见 用style="width: 0;高度:0;溢出:隐藏。”

另一种选择可能是偏移按钮(仍然在from的开头)style="position: absolute;左:-9999 px;顶部:-9999px;"，刚刚尝试在Internet Explorer -工作，但我不知道它还能搞砸什么，例如打印..