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如何在C#中制造天体的射线或阵列?
原标题:How to create an Array or ArrayList of objects in C#?
  • 时间:2010-10-06 21:26:13
  •  标签:
  • c#
  • arrays

我习惯反对MyClass,我需要提出3个例子。

不要做这样的事情:

MyClass instance1 = new MyClass();
MyClass instance2 = new MyClass();
MyClass instance3 = new MyClass();

顺便说一句:

MyClass[] instances = new MyClass();

instances[0].somemethod;

?

最佳回答
MyClass[] instances = new MyClass[3];

for (int i = 0; i < instances.Length; i++)
   instances[i] = new MyClass();
问题回答

是否在休息室里:

MyClass[] instances=new MyClass[3];
for(int i=0;i<3;i++)
{
   instances[i]= new MyClass(); 
}

或直接创建阵列:

MyClass[] instances= new MyClass[]{new MyClass(), new MyClass(), new MyClass()};

用途

MyClass[] instances = new MyClass[num];
f或 (int i=0; i<num; i++)
{
  instances[i]=new MyClass();
}

MyClass[] instances = new MyClass[]{ new MyClass(), new MyClass(), new MyClass()};

页: 1

MyClass[] instances = Enumerable.Repeat(0, 3).Select(i => new MyClass()).ToArray();

业绩考虑留待读者。

使用林克:

MyClass[] instances Enumerable.Range(0, 3).Select(_ => new MyClass()).ToArray();

起始值0 确实如此,我们只是想要一些有3个要素的EE。 或者,<代码>。 Repeat也发挥了作用,只是忽视了第一个论点。





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