using System;
public class Program
{
public static void Main()
// if 문
int score = 100;
if(score >= 90)
if(score == 100)
Console.WriteLine("만점");
}
else
Console.WriteLine("수");
else if(score >= 80)
Console.WriteLine("우");
Console.WriteLine("미");
int a= -1;
int b = (a > 0) ? a : 0; // 조건연산자
Console.WriteLine(b);
// switch문
string option = "/s";
switch(option)
case ("/p"):
Console.WriteLine("KAKAO");
break;
case("/s"):
Console.WriteLine("sms");
default:
Console.WriteLine(11111);
