各位大神幫幫忙，我現(xiàn)在遇見(jiàn)一個(gè)問(wèn)題，這個(gè)是時(shí)間的樣式，? var dates = $("#st, #et").datepicker({??????? changeMonth: true,??????? numberOfMonths: 2,??????? onSelect: function (selectedDate) {??????????? var option = this.id == "st" ? "minDate" : "maxDate",?? ??? ??? ??? ??? ?instance = $(this).data("datepicker"),?? ??? ??? ??? ??? ?date = $.datepicker.parseDate(?? ??? ??? ??? ??? ??? ?instance.settings.dateFormat ||?? ??? ??? ??? ??? ??? ?$.datepicker._defaults.dateFormat,?? ??? ??? ??? ??? ??? ?selectedDate, instance.settings);??????????? dates.not(this).datepicker("option", option, date);??????? }??? });??? $("#st,#et").val(new Date().format('yyyy-MM-dd'));?? $("#st,#et").val(new Date().format('yyyy-MM-dd'));是設(shè)置默認(rèn)時(shí)間為當(dāng)前日期，我怎么把這個(gè)時(shí)間根據(jù)當(dāng)前的時(shí)間讓他顯示前一個(gè)月時(shí)間？？