13. ํŠœํ”Œ ๋ฆฌํ„ด ํƒ€์ž…์„ ์ด์šฉํ•œ ๋ฉ”์†Œ๋“œ ์‚ฌ์šฉํ•˜๊ธฐ

2022. 4. 6. 09:26ยท๐Ÿ’ป Programming Language/C#
using System;

namespace TupleEx2
{
    class Program
    {
        static void Main(string[] args)
        {   
            // ํŠœํ”Œ ๋ฆฌํ„ดํƒ€์ž…์„ ์ด์šฉํ•œ ๋ฉ”์†Œ๋“œ ์„ ์–ธ
            (int count, int sum, double avg) getScore (List<int> data) //ํŠœํ”Œ ๋ฆฌํ„ดํƒ€์ž…์„ ๋ช…์‹œ.
            {
                int count = 0, sum =0;
                double avg = 0;

                foreach (var item in data)
                {
                    count++;
                    sum += item;
                }

                avg = sum / count;

                return (count, sum, avg);
            }

            var data = new List<int> {10, 11, 22, 33, 44};

            var result = getScore (data);

            Console.WriteLine ($"Count : {result.count}, Total : {result.sum}, Average : {result.avg}");
            Console.WriteLine($"Count : {result.Item1}, Total : {result.Item2}, Average : {result.Item3}");
        }
    }
}
Output

Count : 5, Total : 120, Average : 24
Count : 5, Total : 120, Average : 24

// ํŠœํ”Œ ๋ฆฌํ„ดํƒ€์ž…์„ ์ด์šฉํ•œ ๋ฉ”์†Œ๋“œ ์„ ์–ธ
(int count, int sum, double avg) getScore (List<int> data) //ํŠœํ”Œ ๋ฆฌํ„ดํƒ€์ž…์„ ๋ช…์‹œ.
{
    int count = 0, sum =0;
    double avg = 0;

    foreach (var item in data)
    {
        count++;
        sum += item;
    }

    avg = sum / count;

    return (count, sum, avg);
}

  • ํŠœํ”Œ ๋ฆฌํ„ดํƒ€์ž…์„ ๋ช…์‹œํ•˜์—ฌ ๋ฉ”์†Œ๋“œ์—์„œ ํŠœํ”Œํ˜•ํƒœ๋ฅผ ๋ฐ˜ํ™˜ํ•  ์ˆ˜ ์žˆ๋‹ค.

var data = new List<int> {10, 11, 22, 33, 44};

var result = getScore (data);

Console.WriteLine ($"Count : {result.count}, Total : {result.sum}, Average : {result.avg}"); // ํŠœํ”Œ ๋‚ด key๊ฐ’ ์ด์šฉ
Console.WriteLine($"Count : {result.Item1}, Total : {result.Item2}, Average : {result.Item3}"); // Item ์ด์šฉ

  • ํ•ด๋‹น ๋ฉ”์†Œ๋“œ์—์„œ์˜ ํŠœํ”Œ ํ˜•ํƒœ์˜ ๋ฐ˜ํ™˜ ๊ฐ’์—์„œ ์›์†Œ๋ฅผ ์ถ”์ถœํ• ๋•Œ๋Š” ํ•ด๋‹น ํŠœํ”Œ๋‚ด key๊ฐ’์„ ์ด์šฉํ•˜๊ฑฐ๋‚˜ Item1, Item2 ... ๋กœ ๊ฐ€์ ธ์˜ค๋Š” ๋ฐฉ๋ฒ•์ด ์žˆ๋‹ค.

Tuple ๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ ์„ค์น˜ ๋ช…๋ น์–ด
Install-Package "System.ValueTuple"
  • ๋„๊ตฌ => NuGet ํŒจํ‚ค์ง€ ๊ด€๋ฆฌ์ž => ํŒจํ‚ค์ง€ ๊ด€๋ฆฌ์ž ์ฝ˜์†”

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    13. ํŠœํ”Œ ๋ฆฌํ„ด ํƒ€์ž…์„ ์ด์šฉํ•œ ๋ฉ”์†Œ๋“œ ์‚ฌ์šฉํ•˜๊ธฐ
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