//简单明了的解决方案

$(document).ready(function(){

$('#TextboxId').keydown(function(event){
    if (event.which == 13){
       //body or action to be performed
    }
});

});

您可以连接您自己的自定义事件

$('textarea').bind("enterKey",function(e){
   //do stuff here
});
$('textarea').keyup(function(e){
    if(e.keyCode == 13)
    {
        $(this).trigger("enterKey");
    }
});

http://jsfiddle.net/x7HVQ/

//简单明了的解决方案

$(document).ready(function(){

$('#TextboxId').keydown(function(event){
    if (event.which == 13){
       //body or action to be performed
    }
});

});

<form name="searchForm" id="searchForm" onsubmit="doSomething(event)">
   <input type="text" name="search" id="search">
</form>
<script>
   function doSomething(event){
      let $val = $('form#searchForm input[name="search"]').val();
        console.log($val);
      event.preventDefault();
    }
</script>
 One simple way it can be done in this way. Enter text or number, hit enter key and get the entered input value.

HTML代码:

<input type="text" name="txt1" id="txt1" onkeypress="return AddKeyPress(event);" />      

<input type="button" id="btnclick">

Java脚本代码

function AddKeyPress(e) { 
        // look for window.event in case event isn't passed in
        e = e || window.event;
        if (e.keyCode == 13) {
            document.getElementById('btnEmail').click();
            return false;
        }
        return true;
    }

您的表单没有默认提交按钮

这里有一个jquery插件来做到这一点

(function($) {
    $.fn.onEnter = function(func) {
        this.bind('keypress', function(e) {
            if (e.keyCode == 13) func.apply(this, [e]);    
        });               
        return this; 
     };
})(jQuery);

要使用它，包括代码并像这样设置:

$( function () {
    console.log($("input"));
    $("input").onEnter( function() {
        $(this).val("Enter key pressed");                
    });
});

jsfiddle的这里http://jsfiddle.net/VrwgP/30/