类型 '...' 没有定义构造函数 [英] The type '...' has no constructors defined

问题描述

我注意到当我错误地尝试实例化特定类时生成的编译器错误类型..."没有定义的构造函数.

I'm noticing the compiler error The type '...' has no constructors defined generated when I erroneously attempt to instantiate a particlar class.

这让我想知道我将如何编写我自己的类，当有人试图实例化它时会沉淀这个消息.

It lead me to wonder how I would go about writing my own class that would precipitate this message when someone attempted to instantiate it.

那么下面的代码，我需要对MyClass做什么?

So the code below, what do I need to do to MyClass?

namespace MyNamespace
{
    class Program
    {
        static void Main(string[] args)
        {
            MyClass mc = new MyClass();
        }
    }

    class MyClass
    {
        MyClass()
        {
        }
    }
}

推荐答案

此错误 (CS0143) 如果该类只定义了一个内部构造函数，然后您尝试从另一个程序集中实例化它.

This error (CS0143) occurs if the class only defines an internal constructor and you try to instantiate it from another assembly.

public class MyClass
{
    internal MyClass()
    {
    }
}

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