在我对其他解决方案感到沮丧之后，这在所有浏览器中都有效。name_space外层函数只是为了避免声明全局变量，这也是我推荐的。

$(function() {window.name_space = new name_space();}); //jquery doc ready
function name_space() {
    this.is_ie = (navigator.userAgent.indexOf("MSIE") !== -1);

    this.stifle = function(event) {
        event.cancelBubble;
        event.returnValue = false;
        if(this.is_ie === false) {
            event.preventDefault();
        }
        return false;
    }

    this.on_enter = function(func) {
        function catch_key(e) {
            var enter = 13;
            if(!e) {
                var e = event;
            }
            keynum = GetKeyNum(e);
            if (keynum === enter) {
                if(func !== undefined && func !== null) {
                    func();
                }
                return name_space.stifle(e);
            }
            return true; // submit
        }

        if (window.Event) {
            window.captureEvents(Event.KEYDOWN);
            window.onkeydown = catch_key;
        }
        else {
            document.onkeydown = catch_key;
        }

        if(name_space.is_ie === false) {
            document.onkeypress = catch_key;    
        }
    }
}

示例使用:

$(function() {
    name_space.on_enter(
        function () {alert('hola!');}
    );
});

一种完全不同的方法:

The first <button type="submit"> in the form will be activated on pressing Enter. This is true even if the button is hidden with style="display:none; The script for that button can return false, which aborts the submission process. You can still have another <button type=submit> to submit the form. Just return true to cascade the submission. Pressing Enter while the real submit button is focussed will activate the real submit button. Pressing Enter inside <textarea> or other form controls will behave as normal. Pressing Enter inside <input> form controls will trigger the first <button type=submit>, which returns false, and thus nothing happens.

因此:

<form action="...">
  <!-- insert this next line immediately after the <form> opening tag -->
  <button type=submit onclick="return false;" style="display:none;"></button>

  <!-- everything else follows as normal -->
  <!-- ... -->
  <button type=submit>Submit</button>
</form>

您可以创建一个JavaScript方法来检查是否按下了Enter键，如果按下了，就停止提交。

<script type="text/javascript">
  function noenter() {
  return !(window.event && window.event.keyCode == 13); }
</script>

只需在submit方法上调用它。

我想添加一些CoffeeScript代码(没有经过现场测试):

$ ->
    $(window).bind 'keypress', (event) ->
        if event.keyCode == 13
            unless {'TEXTAREA', 'SELECT'}[event.originalEvent.srcElement.tagName]
                event.preventDefault()

(我希望你喜欢这个“除非”从句中的妙招。)

在我对其他解决方案感到沮丧之后，这在所有浏览器中都有效。name_space外层函数只是为了避免声明全局变量，这也是我推荐的。

$(function() {window.name_space = new name_space();}); //jquery doc ready
function name_space() {
    this.is_ie = (navigator.userAgent.indexOf("MSIE") !== -1);

    this.stifle = function(event) {
        event.cancelBubble;
        event.returnValue = false;
        if(this.is_ie === false) {
            event.preventDefault();
        }
        return false;
    }

    this.on_enter = function(func) {
        function catch_key(e) {
            var enter = 13;
            if(!e) {
                var e = event;
            }
            keynum = GetKeyNum(e);
            if (keynum === enter) {
                if(func !== undefined && func !== null) {
                    func();
                }
                return name_space.stifle(e);
            }
            return true; // submit
        }

        if (window.Event) {
            window.captureEvents(Event.KEYDOWN);
            window.onkeydown = catch_key;
        }
        else {
            document.onkeydown = catch_key;
        }

        if(name_space.is_ie === false) {
            document.onkeypress = catch_key;    
        }
    }
}

示例使用:

$(function() {
    name_space.on_enter(
        function () {alert('hola!');}
    );
});

为了阻止表单被提交，我必须捕获所有与按下键相关的三个事件:

    var preventSubmit = function(event) {
        if(event.keyCode == 13) {
            console.log("caught ya!");
            event.preventDefault();
            //event.stopPropagation();
            return false;
        }
    }
    $("#search").keypress(preventSubmit);
    $("#search").keydown(preventSubmit);
    $("#search").keyup(preventSubmit);

你可以把上面所有的组合成一个漂亮的紧凑版本:

    $('#search').bind('keypress keydown keyup', function(e){
       if(e.keyCode == 13) { e.preventDefault(); }
    });