using System; //[1] ±âÃʹ®¹ýÀ̶ó´Â ³×ÀÓ½ºÆäÀ̽º namespace ±âÃʹ®¹ý { //[2] º¯¼ö¶ó´Â Ŭ·¡½º public class º¯¼ö { //[3] Main() À̶ó´Â ¸Þ¼­µå public static void Main() { //[1] º¯¼ö ¼±¾ð int intNum; //Á¤¼öÇü º¯¼ö double dblSu; //½Ç¼öÇü º¯¼ö string strHi; //¹®ÀÚ¿­ º¯¼ö bool blnFlag; //ºÎ¿ïÇü º¯¼ö object objHello; //ÀÓÀÇ°ª º¯¼ö //[2] º¯¼ö ÃʱâÈ­ intNum = 10; dblSu = 10.5; strHi = "¾È³çÇϼ¼¿ä."; blnFlag = true; objHello = "¾È³ç"; //[3] º¯¼ö ÂüÁ¶ Console.WriteLine(intNum);//ÀÌÀü Console.WriteLine("{0}", dblSu);//ÀÚ¸®Ç¥½ÃÀÚ Console.Write( "{0}\n", strHi);//À̽ºÄÉÀÌÇÁ ½ÃÄö½º »ç¿ë Console.Write("{0}\t{1}\t{0}\n", blnFlag, blnFlag);//À妽º Àû¿ë Console.WriteLine("{0}", objHello.ToString());//¹®ÀÚ¿­·Î º¯È¯ //[4] º¯¼öÀÇ µ¥ÀÌÅÍ Å¸ÀÔ : typeof(), TypeName() Console.WriteLine( "int : {0}\n" + //System.Int32 "double : {1}\n" + //System.Double "string : {2}\n" //System.String , intNum.GetType() , dblSu.GetType() , strHi.GetType() ); //[5] µ¥ÀÌÅÍ Çü½Ä º¯È¯ : Convert Ŭ·¡½º Console.WriteLine("{0} : {1}" , intNum + intNum , Convert.ToString(intNum) + intNum);//¹®ÀÚ¿­·Î º¯È¯ Console.WriteLine("{0} : {1}" , dblSu , Convert.ToInt32(dblSu));//Á¤¼öÇüÀ¸·Î º¯È¯ Console.WriteLine("{0} : {1}" , (intNum + intNum) , intNum.ToString() + intNum); Console.WriteLine("{0} : {1}" , dblSu, (int)dblSu);//Á¤¼öÇüÀ¸·Î º¯È¯ } } }