使用参数调用空构造函数和base

Question

我的代码就像

public class Student : Person
{
    public Student() : base()
    {
         m_name = "No Name";
    }

    public Student(string path) : base(path)
    {

    }
}

public class Person
{
    public Person()
    {
    }
    public Person(string path)
    {
         //..do something with path
    }
}

现在，我想打电话给 -

Person myStudent = new Student("some path");

我希望它调用空的Ctor并调用base（path）ctor

所以我将获得一个学生实例，其属性为m_name =＆＃34; No Name＆＃34;

由于

Answer 1

您可以使用可选参数来统一构造函数逻辑。

public class Student : Person
{
    public Student(string path = null) : base(path)
    {

    }
}

public class Person
{
    public Person(string path = null)
    {
        path = path ?? "sensible default";
    }
}