Convert类型转换

 

        static void Main(string[] args){//Convert转换:不同数据类型之间的转换;//大前提: 面儿上一定要过得去
Console.WriteLine("请输入你的姓名:");string strName = Console.ReadLine();Console.WriteLine("请输入你的数学成绩:");double douMath = Convert.ToDouble(Console.ReadLine());Console.WriteLine("请输入你的语文成绩:");double douChinese = Convert.ToDouble(Console.ReadLine());Console.WriteLine("请输入你的英语成绩:");double douEnglish = Convert.ToDouble(Console.ReadLine());Console.WriteLine("{0},你的总分是{1}, 你的平均分是{2:0.00};", strName, douMath + douChinese + douEnglish, (douMath + douChinese + douEnglish) / 3);if (douMath>=60 && douChinese>=60 && douEnglish>=60){Console.WriteLine("恭喜你,成绩合格!");}else{Console.WriteLine("很抱歉, 你的部分成绩不合格!");}Console.ReadKey();}

 

        static void Main(string[] args){Console.WriteLine("46天是{0}周零{1}天;", 46 / 7, 46 % 7);Console.ReadKey();}

        static void Main(string[] args){const int intAllSecond= 107653;int intDay = intAllSecond / (24 * 60 * 60);int intHour = (intAllSecond % (24 * 60 * 60)) / (60 * 60);int intMinute= ((intAllSecond % (24 * 60 * 60)) % (60 * 60))/60;int intSecond= intAllSecond  % 60;Console.WriteLine("{0}天,{1}时,{2}分,{3}秒", intDay, intHour, intMinute, intSecond);Console.ReadKey();}