Console.WriteLine£¨"{0}is {1}day{2} {3}hour{4} {5}min{6} {7}sec{8}", time,
day, day > 1 ? "s" : "",
hour, hour > 1 ? "s":"",
min,min>1?"s":"",
sec,sec>1?"s":""£©;
Console.ReadKey£¨£©;

static void Main£¨string[] args£©
{
Console.WriteLine£¨"ÇëÊäÈëÐèÒª±È½ÏµÄÊý×Ö"£©;//×÷Òµ
int num = Convert.ToInt32£¨Console.ReadLine£¨£©£©;
string str = num >=5? "ÄãÊäÈëµÄÊý×Ö´óÓÚµÈÓÚ5" : "ÄãÊäÈëµÄÊý×ÖСÓÚ5";
Console.WriteLine£¨str£©;
Console.ReadKey£¨£©;
}

Console.WriteLine£¨" ÇëÊäÈëÄúÓµÓеĸֱÊÊýÁ¿"£©;
int a = Convert.ToInt32£¨Console.ReadLine£¨£©£©;
Console.WriteLine£¨"i have {0} pen {1}", a, a > 1 ? "s" : ""£©;
Console.ReadKey£¨£©;

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ÀÏʦ½²µÄºÜ×Ðϸ£¬¾ÍÊÇÕâÀï²»Ã÷°×°¡//int num = Convert.ToInt32(Console.ReadLine());//Ϊʲôת»¯ÎªToInt32£¿

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