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>

我在这里没有看到答案:当您通过页面上的元素时，当您到达提交按钮时按Enter将触发表单上的onsubmit处理程序，但它将记录事件为MouseEvent。以下是我的简单解决方案:

这不是一个与jquery相关的答案

HTML

<form onsubmit="return false;" method=post>
  <input type="text" /><br />
  <input type="button" onclick="this.form.submit()" value="submit via mouse or keyboard" />
  <input type="button" onclick="submitMouseOnly(event)" value="submit via mouse only" />
</form>

JavaScript

window.submitMouseOnly=function(evt){
    let allow=(evt instanceof MouseEvent) && evt.x>0 && evt.y>0 && evt.screenX > 0 && evt.screenY > 0;
    if(allow)(evt.tagName=='FORM'?evt.target:evt.target.form).submit();
}

要找到一个工作示例:https://jsfiddle.net/nemesarial/6rhogva2/

这是完美的方式，你不会从你的页面重定向

$('form input').keydown(function (e) {
if (e.keyCode == 13) {
    e.preventDefault();
    return false;
}
});

第4.10.22.2节隐式提交的W3C HTML5规范说:

A form element's default button is the first submit button in tree order whose form owner is that form element. If the user agent supports letting the user submit a form implicitly (for example, on some platforms hitting the "enter" key while a text field is focused implicitly submits the form), then doing so for a form whose default button has a defined activation behavior must cause the user agent to run synthetic click activation steps on that default button. Note: Consequently, if the default button is disabled, the form is not submitted when such an implicit submission mechanism is used. (A button has no activation behavior when disabled.)

因此，一种符合标准的禁用表单隐式提交的方法是将禁用的提交按钮作为表单中的第一个提交按钮:

<form action="...">
  <!-- Prevent implicit submission of the form -->
  <button type="submit" disabled style="display: none" aria-hidden="true"></button>

  <!-- ... -->

  <button type="submit">Submit</button>
</form>

这种方法的一个很好的特性是它不需要JavaScript;无论是否启用JavaScript，都需要一个符合标准的web浏览器来防止隐式表单提交。

如果使用Vue，使用以下代码来阻止用户通过按Enter提交表单:

<form @submit.prevent>...</form>

如果你使用脚本来实际提交，那么你可以像这样在onsubmit处理程序中添加“return false”行:

<form onsubmit="return false;">

从JavaScript调用表单上的submit()不会触发该事件。