第一天练习

int a;
            int b;
            Console.Title = "第一堂课";
            Console.WriteLine("请输入a的值，按回车");
            Console.Write("a=");
            a = Convert.ToInt32(Console.ReadLine());
            Console.WriteLine("请输入b的值，按回车");
            Console.Write("b=");
            b = int.Parse(Console.ReadLine());
            Console.WriteLine("a+b="+(a + b));
            Console.ReadKey();