The enter login event and click login event of the login button

// enter键按下事件
$('body').keydown(function () {
        if(event.keyCode == '13'){
            var password = $("#password").val();
var account = $("#account").val();
var captcha = $("#captcha").val();
var token = $('meta[                                    name="_token"]').attr('content');
$.ajax({
                type : "POST",
url : "/user/login",
data: {account:account, password:password, captcha:captcha},
headers: {
                    'X-CSRF-TOKEN': token
                                                            
                },
success : function(data) {
                    if (data.errCode != '0')                
                    {
                        layer.msg(data.errMsg, {icon:2});
$(this).removeClass('disable');
changeCode();
return ;
}                                                                                            

                    window.location.href =  '/';
                }
            })
        }
})

$("#submit").click(function(e){
   var password = $("#password").val();
var account = $("#account").val();
var captcha = $("#captcha").val();
var token = $('meta[name="_token"]').attr('content');
         
   $.ajax({
        type : "POST",
url : "/user/login",
data: {account:account, password:password, captcha:captcha},
headers: {
            'X-CSRF-TOKEN': token                        
        },
success : function(data) {
            if (data.errCode != '0')        
            {
                layer.msg(data.errMsg, {icon:2});
$(this).removeClass('disable');
changeCode();
return ;
}                                                            

            window.location.href =  '/';
        }
    })