var iscancel = false;
                $("#sysearch").on({
                    input: function (e) {
                        if (!iscancel) {
                            //do something
                        }
                    },
                    compositionstart: function () {
                        iscancel 
 
= true;
                    },
                    compositionend: function () {
                        iscancel = false;
                        $(this).trigger('input');
                    }
                })