//DateTime类型
Console.WriteLine($"当前日期和时间：{DateTime.Now}");
Console.WriteLine($"当前日期：{DateTime.Today}");
Console.WriteLine($"当前UTC日期和时间：{DateTime.UtcNow}");
Console.WriteLine($"获取年：{DateTime.Now.Year}");
Console.WriteLine($"获取月：{DateTime.Now.Month}");
Console.WriteLine($"获取日：{DateTime.Now.Day}");
Console.WriteLine($"获取小时：{DateTime.Now.Hour}");
Console.WriteLine($"获取分钟：{DateTime.Now.Minute}");
Console.WriteLine($"获取秒：{DateTime.Now.Second}");
Console.WriteLine($"获取毫秒：{DateTime.Now.Millisecond}");
Console.WriteLine($"获取日期：{DateTime.Now.Date}");
Console.WriteLine($"获取星期：{DateTime.Now.DayOfWeek}");
Console.WriteLine($"获取一年当中的天数：{DateTime.Now.DayOfYear}");
//构造函数
DateTime dateTime1 = new DateTime(2025, 12, 18);
DateTime dateTime2 = new DateTime(2025, 12, 18, 9, 20, 58);
Console.WriteLine($"dateTime1={dateTime1}");
Console.WriteLine($"dateTime2={dateTime2}");
//使用方法操作日期和时间
DateTime dateTime = new DateTime(2025, 10, 20);
Console.WriteLine($"原日期和时间：{dateTime}");
//添加年
Console.WriteLine($"添加年：{dateTime.AddYears(1)}");
//添加月
Console.WriteLine($"添加月：{dateTime.AddMonths(-1)}");
//添加日
Console.WriteLine($"添加日：{dateTime.AddDays(6)}");
//添加小时
Console.WriteLine($"添加小时：{dateTime.AddHours(2)}");
//添加分钟
Console.WriteLine($"添加分钟：{dateTime.AddMinutes(10)}");
//添加秒
Console.WriteLine($"添加秒：{dateTime.AddSeconds(30)}");
Console.WriteLine(dateTime.AddHours(2).AddMinutes(20).AddSeconds(50));
//设置时间段
TimeSpan timeSpan = new TimeSpan(1, 2, 20, 30);
Console.WriteLine(timeSpan);
TimeSpan timeSpan = new TimeSpan(1, 2, 20, 30);
Console.WriteLine($"总天数：{timeSpan.TotalDays}");
Console.WriteLine($"当前天数：{timeSpan.Days}");
Console.WriteLine($"总小时数：{timeSpan.TotalHours}");
Console.WriteLine($"当前小时数：{timeSpan.Hours}");
Console.WriteLine($"总分钟数：{timeSpan.TotalMinutes}");
Console.WriteLine($"当前分钟数：{timeSpan.Minutes}");
Console.WriteLine($"总秒数：{timeSpan.TotalSeconds}");
Console.WriteLine($"当前秒数：{timeSpan.Seconds}");
Console.WriteLine($"总毫秒数：{timeSpan.TotalMilliseconds}");
Console.WriteLine($"当前毫秒数：{timeSpan.Milliseconds}");
Console.WriteLine($"总100纳秒数：{timeSpan.Ticks}");
//TimeSpan常用方法
Console.WriteLine(TimeSpan.FromDays(1));
Console.WriteLine(TimeSpan.FromHours(1));
Console.WriteLine(TimeSpan.FromMinutes(20));
Console.WriteLine(TimeSpan.FromSeconds(40));
Console.WriteLine(TimeSpan.FromMilliseconds(2000));
Console.WriteLine(TimeSpan.FromTicks(100));
//DateTimeOffset类型
Console.WriteLine($"当前日期和时间：{DateTimeOffset.Now}");
Console.WriteLine($"当前UTC日期和时间：{DateTimeOffset.UtcNow}");
Console.WriteLine($"获取年：{DateTimeOffset.Now.Year}");
Console.WriteLine($"获取月：{DateTimeOffset.Now.Month}");
Console.WriteLine($"获取日：{DateTimeOffset.Now.Day}");
Console.WriteLine($"获取小时：{DateTimeOffset.Now.Hour}");
Console.WriteLine($"获取分钟：{DateTimeOffset.Now.Minute}");
Console.WriteLine($"获取秒：{DateTimeOffset.Now.Second}");
Console.WriteLine($"获取毫秒：{DateTimeOffset.Now.Millisecond}");
Console.WriteLine($"获取日期：{DateTimeOffset.Now.Date}");
Console.WriteLine($"获取星期：{DateTimeOffset.Now.DayOfWeek}");
Console.WriteLine($"获取一年当中的天数：{DateTimeOffset.Now.DayOfYear}");
//设置带有偏移量的日期和时间
DateTimeOffset timeOffset = new DateTimeOffset(2026, 4, 18, 8, 24, 29, TimeSpan.FromHours(5));
Console.WriteLine(timeOffset);
//使用Addxxx()方法
DateTimeOffset dateTime = new DateTimeOffset(2030, 10, 20, 9, 16, 18, TimeSpan.FromHours(6));
Console.WriteLine($"原日期和时间：{dateTime}");
//添加年
Console.WriteLine($"添加年：{dateTime.AddYears(-1)}");
//添加月
Console.WriteLine($"添加月：{dateTime.AddMonths(1)}");
//添加日
Console.WriteLine($"添加日：{dateTime.AddDays(-6)}");
//添加小时
Console.WriteLine($"添加小时：{dateTime.AddHours(2)}");
//添加分钟
Console.WriteLine($"添加分钟：{dateTime.AddMinutes(10)}");
//添加秒
Console.WriteLine($"添加秒：{dateTime.AddSeconds(30)}");
//获取时区
Console.WriteLine($"本地时区：{TimeZoneInfo.Local}");
Console.WriteLine($"UTC时区：{TimeZoneInfo.Utc}");
Console.ReadKey();
