jquery trigger

 <button id="bt1" class="layui-btn layui-btn-normal">
        点击提交
    </button>

    <script>
        $(function(){
            $(document).keydown(function(event){
                if(event.keyCode == 13){
                    $("#bt1").trigger('click');
                }
            })

            $("#bt1").click(function(){
                layer.msg(444444);
            })
        })
    </script>