以上大多数答案将阻止用户在textarea字段中添加新行。如果这是你想要避免的情况，你可以通过检查当前有焦点的元素来排除这种特殊情况:

var keyCode = e.keyCode || e.which;
if (keyCode === 13 && !$(document.activeElement).is('textarea')) {
  e.preventDefault();
  return false;
}

您可以在纯Javascript中完美地做到这一点，简单且不需要库。以下是我对类似话题的详细回答: 禁用表单输入键

简而言之，代码如下:

<script type="text/javascript">
window.addEventListener('keydown',function(e){if(e.keyIdentifier=='U+000A'||e.keyIdentifier=='Enter'||e.keyCode==13){if(e.target.nodeName=='INPUT'&&e.target.type=='text'){e.preventDefault();return false;}}},true);
</script>

This code is to prevent "Enter" key for input type='text' only. (Because the visitor might need to hit enter across the page) If you want to disable "Enter" for other actions as well, you can add console.log(e); for your your test purposes, and hit F12 in chrome, go to "console" tab and hit "backspace" on the page and look inside it to see what values are returned, then you can target all of those parameters to further enhance the code above to suit your needs for "e.target.nodeName", "e.target.type" and many more...

以上大多数答案将阻止用户在textarea字段中添加新行。如果这是你想要避免的情况，你可以通过检查当前有焦点的元素来排除这种特殊情况:

var keyCode = e.keyCode || e.which;
if (keyCode === 13 && !$(document.activeElement).is('textarea')) {
  e.preventDefault();
  return false;
}

更短:

$('myform').submit(function() {
  return false;
});

我不知道你是否已经解决了这个问题，或者现在有人试图解决这个问题，但是，这是我的解决方案!

$j(':input:not(textarea)').keydown(function(event){
    var kc = event.witch || event.keyCode;
    if(kc == 13){
    event.preventDefault();
        $j(this).closest('form').attr('data-oldaction', function(){
            return $(this).attr('action');
        }).attr('action', 'javascript:;');

        alert('some_text_if_you_want');

        $j(this).closest('form').attr('action', function(){
            return $(this).attr('data-oldaction');
        });
        return false;
    }
});

$('#FormID').on('keyup keypress', function (e) {
        var keyCode = e.keyCode || e.which;
        if (keyCode === 13) {
            e.preventDefault();
            return false;
        }
    });