// 日期     $('.date').datepicker({         changeYear: true,         changeMonth: true,         minDate:null,         maxDate:null,         onClose: function(selectedDate) {             $('.gap-date').datepicker('option','minDate', '+1m');         }     });     // 日期范围     $('.gap-date').datepicker({         changeYear: true,         changeMonth: true,         maxDate:null,         onClose: function(selectedDate) {             var y, m, d;             var arr = selectedDate.split('-');             y = arr[0];             m = arr[1] - 7;             d = arr[2];             $('.date').datepicker('option','maxDate', new Date(y, m, d));         }     });