W3School TIY Editor

using System;

​

namespace MyApplication

{

  class Program

  {

    static void Main(string[] args)

    {

      double myDouble = 9.78;

      int myInt = (int) myDouble;  // 手动类型转换：从 double 到 int

​

      Console.WriteLine(myDouble);

      Console.WriteLine(myInt);

    }

  }

}