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๋ฉ”์†Œ๋“œ, ๋งค๊ฐœ๋ณ€์ˆ˜ ๋ฐ ๋กœ์ปฌ ํ•จ์ˆ˜

์„ค๋ช…์„œ C# ยท ์˜ˆ์‹œ UO

์ด ๋ฉ”์†Œ๋“œ๋Š” ๊ฒฐ๊ณผ ์œ ํ˜•, ์ด๋ฆ„ ๋ฐ ๋งค๊ฐœ๋ณ€์ˆ˜๋ฅผ ์„ ์–ธํ•ฉ๋‹ˆ๋‹ค. void๋Š” ๊ฒฐ๊ณผ๊ฐ€ ์—†์Œ์„ ์˜๋ฏธํ•ฉ๋‹ˆ๋‹ค. ๋‹ค๋ฅธ ๋ฐฉ๋ฒ•์€ return์„ ํ†ตํ•ด ๊ฐ’์„ ๋ฐ˜ํ™˜ํ•ฉ๋‹ˆ๋‹ค. ๊ณผ๋ถ€ํ•˜๋Š” ๋งค๊ฐœ๋ณ€์ˆ˜๊ฐ€ ๋‹ค๋ฆ…๋‹ˆ๋‹ค. ๋ช…๋ช…๋œ ๋งค๊ฐœ๋ณ€์ˆ˜์™€ ์„ ํƒ์  ๋งค๊ฐœ๋ณ€์ˆ˜๋Š” ํŠน์ • ๋ฉ”์†Œ๋“œ ์„ ์–ธ์„ ์ฐธ์กฐํ•ฉ๋‹ˆ๋‹ค.

๊ฐ„๋‹จํ•œ ์˜ˆ์ œ (Example.cs)

์ด ์˜ˆ์ œ๋ฅผ Example.cs๋กœ ๋”ฐ๋กœ ์ €์žฅํ•˜๊ณ  ์ด ํŽ˜์ด์ง€์˜ ๋‹ค๋ฅธ ์˜ˆ์ œ์™€ ๋…๋ฆฝ์ ์œผ๋กœ ์‹คํ–‰ํ•˜์„ธ์š”.

Example.cs:

// PROJECT-EXAMPLE
int Double(int value) => value * 2;
System.Console.WriteLine(Double(4));

๊ฒฐ๊ณผ:

8
string MakeMessage(string name, int count = 1)
{
    return $"{name}: {count}";
}
UO.Print(MakeMessage(name: "Items", count: 3));
UO.Print(MakeMessage("Attempt"));
int Total(params int[] numbers) => numbers.Sum();
int value = Total(2, 3, 4);
UO.Print(value.ToString());

์ผ๋ฐ˜ ๋งค๊ฐœ๋ณ€์ˆ˜๋Š” ๋ณ€์ˆ˜ ๊ฐ’์„ ์ „๋‹ฌํ•ฉ๋‹ˆ๋‹ค. ๊ฐ์ฒด์— ๋Œ€ํ•œ ์ฐธ์กฐ์˜ ๊ฒฝ์šฐ ์ฐธ์กฐ ์ž์ฒด๊ฐ€ ๋ณต์‚ฌ๋ฉ๋‹ˆ๋‹ค. ref๋ฅผ ์‚ฌ์šฉํ•˜๋ฉด ํ˜ธ์ถœ ์ฝ”๋“œ์˜ ๋ณ€์ˆ˜๋ฅผ ์ฝ๊ณ  ๋ณ€๊ฒฝํ•  ์ˆ˜ ์žˆ๊ณ , out์—์„œ๋Š” ์ถœ๋ ฅ ๊ฐ’์„ ํ• ๋‹นํ•ด์•ผ ํ•˜๋ฉฐ, in๋Š” ์ฝ๊ธฐ ์ „์šฉ ๋งํฌ๋ฅผ ํ†ตํ•ด ์ธ์ˆ˜๋ฅผ ์ „๋‹ฌํ•ฉ๋‹ˆ๋‹ค. ๊ฒฐ๊ณผ๋ฅผ ๋ฐ˜ํ™˜ํ•˜๋Š” ๊ฒƒ, ๋ฉ”์„œ๋“œ๋ฅผ ํ˜ธ์ถœํ•˜๋Š” ๊ฒƒ, ์„ ์–ธํ•˜๋Š” ๊ฒƒ์€ ์„œ๋กœ ๋‹ค๋ฅธ ์ž‘์—…์ž…๋‹ˆ๋‹ค.

void Increment(ref int number) => number++;
int current = 1;
Increment(ref current);
bool parsed = int.TryParse("42", out int result);
UO.Print($"Current={current}, parsed={parsed}, result={result}");

๊ณต์‹ ๋ฌธ์„œ: ๋ฉ”์„œ๋“œ, ๋งค๊ฐœ๋ณ€์ˆ˜ ๋ฐ ๋กœ์ปฌ ํ•จ์ˆ˜ - Microsoft Learn.