定义AddYears，使用C＃计算十年的年龄

问题描述

我是C＃的新手并且已经从书中做过练习。练习是编写一个程序，从控制台读取我的年龄，并在十年后打印我的年龄。

I'm new to C# and have been doing an exercise from a book. The exercise is to write a program that reads my age from the console and prints my age after ten years from now.

这是我根据我写的代码到目前为止已经理解。

Here is the code I have written based on what I have understood so far.

namespace Page_108_Age
{
    class Program
    {
        static void Main(string[] args)
        {
            //Gives date of birth
            DateTime dob = new DateTime(1989, 10, 30, 23, 31, 00);

            //Gives current age
            DateTime today = DateTime.Today;
            int age = today.Year -dob.Year;
            if (today < dob.AddYears(age)) age--;

            //age plus ten years
            DateTime agePlusTen = age.AddYears(10);

            Console.WriteLine(age);
            Console.ReadLine();
        }
    }
} 

我的问题是AddYears in第16行

My problem is that AddYears in line 16

[ DateTime dobPlusTen = age.AddYears（10）; ]

给我以下错误...

我显然缺少一些东西，但现在确定我还需要定义AddYears，因为它在我的代码中没有突出显示为结构。

I'm obviously missing something but now sure what other then I think I need to define AddYears as it is not highlighted in my code as a struct.

注意：对于dobPlusTen的道歉，因为你们大多数人都选择这个是生日期加上十年的短期，这不是我想要的那样。 Age Plus Ten Years，我把它更改为agePlusTen。

推荐答案

你是wr ite：

DateTime dobPlusTen = age.AddYears(10);

这不响铃吗？

您的变量名为 dobPlusTen ，但您分配给它的值是不是 dob +10。

Your variable is named dobPlusTen, yet the value you assign to it is not dob + 10.

因此将其更改为

DateTime dobPlusTen = dob.AddYears(10);

你会没事的。

EDIT 根据Ross Dargan在这个答案下面的评论（我没有注意到确切的问题：练习是写一个程序，从控制台读取我的年龄并打印我的年龄后从现在开始十年。），它实际上要简单得多。

EDIT As per Ross Dargan's remark below this answer (I had failed to notice the exact question: The exercise is to write a program that reads my age from the console and prints my age after ten years from now.), it's actually much simpler.

只需

var line = Console.ReadLine();
int agePlus10 = Convert.ToInt32(line) + 10;
Console.WriteLine(agePlus10);

会做。

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