在C＃中如何计算某人的年龄？ [英] How do I calculate someone's age in C#?

问题描述

给定代表一个人的生日的 DateTime ，如何计算年龄？

Given a DateTime representing a person's birthday, how do I calculate their age in years?

推荐答案

一个易于理解和简单的解决方案。

An easy to understand and simple solution.

// Save today's date.
var today = DateTime.UtcNow;    
// Calculate the age.
var age = today.Year - birthdate.Year;
// Do stuff with it.
if (birthdate > today.AddYears(-age)) age--;

但是，这假设您正在寻找西方的年龄和不使用东亚推算

However, this assumes you are looking for the western idea of age and not using East Asian reckoning.

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