ajax修改表单的值后dom没更新的解决办法

添加一个扩展方法，通过$("#id").html($("#id").formhtml())更改。

扩展方法：

(function ($) {
            var oldHTML = $.fn.html;
            $.fn.formhtml = function () {
                if (arguments.length) return oldHTML.apply(this, arguments);
                $("input,textarea,button", this).each(function () {
                    this.setAttribute('value', this.value);
                });
                $(":radio,:checkbox", this).each(function () {
                    // im not really even sure you need to do this for "checked"
                    // but what the heck, better safe than sorry
                    if (this.checked) this.setAttribute('checked', 'checked');
                    else this.removeAttribute('checked');
                });
                $("option", this).each(function () {
                    // also not sure, but, better safe...
                    if (this.selected) this.setAttribute('selected', 'selected');
                    else this.removeAttribute('selected');
                });
                return oldHTML.apply(this);
            };
            //optional to override real .html() if you want
            // $.fn.html = $.fn.formhtml;
        })(jQuery);