如何在c#中获取昨天和明天的日期时间

Question

我有一个代码:

int MonthNow = System.DateTime.Now.Month;
int YearNow = System.DateTime.Now.Year;
int DayNow = System.DateTime.Now.Day;

我怎样才能在C#中获得昨天和明天的日,月,年？

当然,我可以写:

DayTommorow = DayNow +1;

但可能会发生明天是其他月份或年份.是否有C#内置工具可以在昨天和今天查找？

Answer 1

DateTime tomorrow = DateTime.Now.AddDays(1);
DateTime yesterday = DateTime.Now.AddDays(-1);

Answer 2

您可以在API参考中找到此信息.

var today = DateTime.Now;
var tomorrow = today.AddDays(1);
var yesterday = today.AddDays(-1);

Answer 3

今天:

DateTime.Today

明天:

DateTime.Now.AddDays(1)

昨天:

DateTime.Now.AddDays(-1)

Answer 4

你想要的DateTime.Today.AddDays(1).

Answer 5

你应该这样做,如果你想在昨天和明天00:00:00获得:

DateTime yesterday = DateTime.Today.AddDays(-1);
DateTime tomorrow = DateTime.Today.AddDays(1); // Output example: 6. 02. 2016 00:00:00

请记住,如果你这样做:

DateTime yesterday = DateTime.Now.AddDays(-1);
DateTime tomorrow = DateTime.Now.AddDays(1); // Output example: 6. 02. 2016 18:09:23

那么你将得到当前时间减去一天,而不是昨天00:00:00时间.

Answer 6

DateTime tomorrow = DateTime.Now.AddDays(1);
DateTime yesterday = DateTime.Now.AddDays(-1);