void HourStatistic()
{
lastTimeType = LastTimeType.hour;
var date = dtpStatistic.Value.Date;
StatisticFun(24, date, (d) => d.AddHours(1));
}
void WeekStatisic()
{
lastTimeType = LastTimeType.week;
var date = dtpStatistic.Value.Date;
date = date.AddDays(-7 * 8);
StatisticFun(8, date, d => d.AddDays(7));
}
void DayStatistic()
{
lastTimeType = LastTimeType.day;
var date = dtpStatistic.Value.Date;
StatisticFun(8, date.AddDays(-7), d => d.AddDays(1));
}