Timer计时器实现定时

//获取当前时间+1天，固定时分秒
DateTime futureTime = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.AddDays(1).Day, 11, 0, 0);
// 当前时间
DateTime currentTime = DateTime.Now;
// 计算时间差
TimeSpan timeDifference = futureTime - currentTime;
// 获取时间差的总毫秒数
double milliseconds = timeDifference.TotalMilliseconds;
return milliseconds;