C#变量和常量

1. 变量

using System;

namespace variable {
    class Program {
        static void Main(string[] args) {
             int age = 12;
             bool gender = false;
             float score = 122.3f;
             console.WriteLine("my age", age);
             console.WriteLine("my gender", gender);
             console.WriteLine("my score", score);
          }
    }
}

2. 常量

using System;

namespace constant {
    class Program {
        static void Main(string[] args) {
              const double PI = 3.14;
              console.WriteLine("PI ->", PI);
          }
    }
}

that's all