这段代码不应该有错误。 我不明白为什么这不起作用

Question

My coding teacher gave me homework to build ba working code. So i did and when i ran it it said there was an error. I couldn't find one and neither could my teachet. So my mom recommended to ask here to see if maybe we messed something. Sorry if i have spelling mistakes i am still learning English. Ps i am learning the language c#.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Dcoder
{
    public class Program
    {
        public static void Main(string[] args)
        {
            string sibling1; 
            string sibling2;
            int age_sibling1; 
            int age_sibling2;
            Console.WriteLine( " insert your name and your age " );
            sibling1 = string Console.ReadLine();
            age_sibling1 = int.Parse(Console.ReadLine());
            Console.WriteLine( " insert your sibrlings name and age " );
            sibling2 = string Console.ReadLine();
            age_sibling2 = int.Parse(console.ReadLine());         
            if (age_sibling1 > age_sibling2);
            Console.WriteLine(sibling1 + " is bigger " );
            Else;
            if (age_sibling2 > age_sibling1);
            Console.WriteLine(sibling2 + " is bigger " );
        }
    }
}

Answer 1

Made some changes to your code. Some suggestions: Int.Parse will throw an exception if user doesnt enter a number. I would suggest using try/catch or Int32.TryParse .

Another thing is if you are using variable1, variable2, variable3 etc. its time to create a method and avoid using variableN.

string sibling1, sibling2;
        int age_sibling1, age_sibling2;
        Console.WriteLine("Insert sibling 1 name ");

        sibling1 = Console.ReadLine();
        Console.WriteLine("Insert sibling 1 age ");

        age_sibling1 = int.Parse(Console.ReadLine());
        Console.WriteLine("Insert sibling 2 name ");

        sibling2 = Console.ReadLine();
        Console.WriteLine("Insert sibling 2 age ");

        age_sibling2 = int.Parse(Console.ReadLine());

        if (age_sibling1 > age_sibling2)
            Console.WriteLine($"{sibling1} is bigger ");
        else
            Console.WriteLine($"{sibling2} is bigger ");

        // Wait for user.
        Console.ReadKey();