只有块提交，而不是其他，重要的功能输入键，如创建一个新的段落在<textarea>:

window.addEventListener('keydown', function(event) { //set default value for variable that will hold the status of keypress pressedEnter = false; //if user pressed enter, set the variable to true if (event.keyCode == 13) pressedEnter = true; //we want forms to disable submit for a tenth of a second only setTimeout(function() { pressedEnter = false; }, 100) }) //find all forms var forms = document.getElementsByTagName('form') //loop through forms for (i = 0; i < forms.length; i++) { //listen to submit event forms[i].addEventListener('submit', function(e) { //if user just pressed enter, stop the submit event if (pressedEnter == true) { updateLog('Form prevented from submit.') e.preventDefault(); return false; } updateLog('Form submitted.') }) } var log = document.getElementById('log') updateLog = function(msg) { log.innerText = msg } input, textarea { display: inline-block; margin-bottom: 1em; border: 1px solid #6f6f6f; padding: 5px; border-radius: 2px; width: 90%; font-size: 14px; } input[type=submit] { background: lightblue; color: #fff; } <form> <p>Sample textarea (try enter key):</p> <textarea rows="4">Hit enter, a new line will be added. But the form won't submit</textarea><br/> <p>Sample textfield (try enter key):</p> <input type="text" placeholder="" /> <br/> <input type="submit" value="Save" /> <h3 id="log"></h3> </form>

不需要阻止用户按Enter键(这似乎不自然)，您可以让表单保持原样，并添加一些额外的客户端验证:当调查未完成时，结果不会发送到服务器，用户会收到一条漂亮的消息，告诉需要完成哪些内容才能完成表单。如果您正在使用jQuery，请尝试验证插件:

http://docs.jquery.com/Plugins/Validation

这将需要比捕捉Enter按钮更多的工作，但肯定会提供更丰富的用户体验。

给表单一个'javascript:void(0);'的动作似乎可以做到这一点

<form action="javascript:void(0);">
<input type="text" />
</form>
<script>
$(document).ready(function() {
    $(window).keydown(function(event){
        if(event.keyCode == 13) {
    alert('Hello');
        }
    });
});
</script>

你也可以使用javascript:void(0)来阻止表单提交。

<form action="javascript:void(0)" method="post">
    <label for="">Search</label>
    <input type="text">
    <button type="sybmit">Submit</button>
</form>

<form action="javascript:void(0)" method="post"> <标签= " " > < / >标签搜索 < input type = " text " > <按钮类型=“sybmit”> > < /按钮提交 > < /形式

在我的情况下，我有一对jQuery UI自动完成字段和文本区域的形式，所以我肯定希望他们接受进入。所以我从表单中删除了type="submit"输入，并添加了一个锚<a href="" id="btn">Ok</a>。然后我把它设置为一个按钮，并添加以下代码:

$( '#btn' ).click( function( event ){
    event.preventDefault();
    if ( validateData() ){
        $( 'form#frm' ).append( '<input type="submit" id="frm-submit" style="display:none;"></input>' );
        setTimeout( function(){ $( '#frm-submit' ).click(); }, 500 );
    }
    return false;
});

如果用户填写了所有必需的字段，validateData()将成功并提交表单。

Use:

// Validate your form using the jQuery onsubmit function... It'll really work...

$(document).ready(function(){
   $(#form).submit(e){
       e.preventDefault();
       if(validation())
          document.form1.submit();
   });
});

function validation()
{
   // Your form checking goes here.
}

<form id='form1' method='POST' action=''>
    // Your form data
</form>