C#第一天

namespace gowater
{
    class Program
    {
        static void Main()
        {
            var i = new List<int>();
            int age = 20;
            int b = 90;
            int result = age + b;
            double pi = 3.1415;
            float distance = 23.45F;
            decimal price = 19.90M;
            bool issunny = false;
            char c = 'C';
            string geeting = "dasdada hahah";
            string stuEdit = "asdas";
            Console.WriteLine($"{age}+{b}={result}");
        }
    }
}