您可以使用 在ShowDay 事件之前.它将为需要在日历中显示的每个日期调用.它传入一个日期并返回一个带有 [0]= isSelectable, [1]= cssClass, [2]=Some tooltip text

You can use the beforeShowDay event. It will get called for each date that needs to be shown in the calendar. It passes in a date and return an array with [0]= isSelectable, [1]= cssClass, [2]=Some tooltip text

$('#whatever').datepicker({
            beforeShowDay: function(date) {
             if (date == myDate) {
              return [true, 'css-class-to-highlight', 'tooltipText'];
              }else{
              //this will allow the cell be selected without been highlighted
              return [true,'']
              }
           }
});