.NET 6新特性试用之DateOnly和TimeOnly类型

var dateOnly = new DateTime(2021, 10, 1);
//输出
2021/10/1 0:00:00
//问题：还是有时间，并不能代表0点出生

var timeOnly = new TimeSpan(11, 22, 0).Add(TimeSpan.FromHours(24));
//输出
1.11:22:00
//问题：过了24小时，应该还是当前时间，实际带了天数

var dateOnly = new DateOnly(2021, 10, 1);
//输出
10/1/2021

var timeOnly = new TimeOnly(11, 22, 0);
//输出
11:22 AM

var datetime = new DateTime(2021, 10, 1, 10, 1, 0);

var dateOnly = DateOnly.FromDateTime(datetime);

var timeOnly = TimeOnly.FromDateTime(datetime);

var timeSpan = new TimeSpan(11, 22, 0);
 
var timeOnly = TimeOnly.FromTimeSpan(timeSpan);

var dateOnly = new DateOnly(2021, 10, 1);

var timeOnly = new TimeOnly(11, 22, 0);

var datetime = dateOnly.ToDateTime(timeOnly);
//输出
10/1/2021 11:22:00 AM

var timeOnly = new TimeOnly(11, 22, 0);

var timeSpan = timeOnly.ToTimeSpan();
//输出
11:22:00

var noon = new TimeOnly(12, 0);
if (now < noon)
{
    //早上
    ...
}

dateOnly = dateOnly.AddDays(7);

timeOnly = timeOnly.AddHours(24);