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C# 多个类和对象


多个对象

您可以创建一个类中的多个对象

示例

创建两个Car对象

class Car
{
  string color = "red";
  static void Main(string[] args)
  {
    Car myObj1 = new Car();
    Car myObj2 = new Car();
    Console.WriteLine(myObj1.color);
    Console.WriteLine(myObj2.color);
  }
}

自己试一试 »


使用多个类

您还可以创建一个类的对象并在另一个类中访问它。这通常用于更好地组织类(一个类包含所有字段和方法,而另一个类包含Main()方法(要执行的代码)。

  • prog2.cs
  • prog.cs

prog2.cs

class Car 
{
  public string color = "red";
}

prog.cs

class Program
{
  static void Main(string[] args)
  {
    Car myObj = new Car();
    Console.WriteLine(myObj.color);
  }
}

自己试一试 »

您是否注意到public关键字?它被称为**访问修饰符**,它指定Carcolor变量/字段也可供其他类访问,例如Program

您将在后面的章节中学习更多关于**访问修饰符**和**类/对象**的知识。


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