class Shape {
ย ย ย ย private int count = 0;
ย ย ย ย public void PlusCount() {
ย ย ย ย ย ย ย ย count++;
ย ย ย ย ย ย ย ย Console.WriteLine(count);
ย ย ย ย }
}

class Circle : Shape {
ย ย ย ย 
}

class Program {
ย ย ย ย public static Main(string[] args) {
ย ย ย ย ย ย ย ย Shape s = new Circle();
ย ย ย ย ย ย ย ย s.PlusCount();
ย ย ย ย }
}

์œ„์— ์ฝ”๋“œ๊ฐ€ ์ดํ•ด๊ฐ€ ์•ˆ๋˜์„œ ๊ทธ๋Ÿฐ๋ฐ
Circle ์ด Shape ํ•œํ…Œ ์ƒ์†๋ฐ›์„๋•Œ private๋Š” ์ƒ์† ์•ˆ๋ฐ›์œผ๋‹ˆ๊นŒ
Circle ์•ˆ์—๋Š” public์ธ PlusCount ๋ฉ”์„œ๋“œ๋งŒ ์กด์žฌํ•˜๋Š”๊ฑฐ ์•„๋‹ˆ์•ผ?

๊ทผ๋ฐ ๋ฉ”์ธ์—์„œ Circle ๊ฐ์ฒด๋งŒ๋“ค๊ณ  PlusCount ๋ฉ”์„œ๋“œ ํ˜ธ์ถœํ•˜๋Š”๋ฐ ์–ด๋–ป๊ฒŒ Shape ์•ˆ์— ์žˆ๋Š” private ๋ฉค๋ฒ„์— ์ ‘๊ทผ์ด ๊ฐ€๋Šฅํ•˜๊ฒŒ ๋˜๋Š”๊ฑฐ์ž„.??