只需从onsubmit处理程序返回false

<form onsubmit="return false;">

或者如果你想要一个中间的处理程序

<script>
var submitHandler = function() {
  // do stuff
  return false;
}
</script>
<form onsubmit="return submitHandler()">

I Have come across this myself because I have multiple submit buttons with different 'name' values, so that when submitted they do different things on the same php file. The enter / return button breaks this as those values aren't submitted. So I was thinking, does the enter / return button activate the first submit button in the form? That way you could have a 'vanilla' submit button that is either hidden or has a 'name' value that returns the executing php file back to the page with the form in it. Or else a default (hidden) 'name' value that the keypress activates, and the submit buttons overwrite with their own 'name' values. Just a thought.

放入javascript外部文件

   (function ($) {
 $(window).keydown(function (event) {  

    if (event.keyCode == 13) {

        return false;
    }
});

 })(jQuery);

或者在body tag里面

<script>


$(document).ready(function() {
    $(window).keydown(function(event) {
        alert(1);

        if(event.keyCode == 13) {

            return false;
        }
    });
});

</script>

另一种方法是仅在表单应该提交时才将提交输入按钮附加到表单，并在表单填充期间将其替换为简单的div

//Turn off submit on "Enter" key

$("form").bind("keypress", function (e) {
    if (e.keyCode == 13) {
        $("#btnSearch").attr('value');
        //add more buttons here
        return false;
    }
});

在我的案例中，这个jQuery JavaScript解决了这个问题

jQuery(function() {
            jQuery("form.myform").submit(function(event) {
               event.preventDefault();
               return false;
            });
}