onLoad: function(options) {
  var that = this;
  //获取明天
  that.getDateStr(null,1)//只需要改变这里就OK，-1是昨天，0是今天，1是后一天
},
 
getDateStr: function(today, addDayCount) {
var date;
if(today) {
  date = new Date(today);
}else{
  date = new Date();
}
date.setDate(date.getDate() + addDayCount);//获取AddDayCount天后的日期 
  var y = date.getFullYear();
  var m = date.getMonth() + 1;//获取当前月份的日期 
  var d = date.getDate();
  if(m < 10){
    m = '0' + m;
  };
  if(d < 10) {
    d = '0' + d;
  };
  console.log( y + "-" + m + "-" + d)
  return y + "-" + m + "-" + d;
},