C # Constructors

1. A constructor is a special method that does not return a value type, cannot return a value, and the method name is consistent with the class name.

2. The function of the constructor is to construct the object's property values.

3. Members of any class are not likely to be the same as the class name except for constructors and destructors.

4. Any class will default to provide an argument-free constructor. However, if you add a constructor with parameters manually, the parameterless constructor disappears automatically, so after you create the class, you immediately add a parameterless constructor to the function.

5. The constructor itself is a method, so it can be overloaded, but it cannot be called like a normal method, it can only be used in two cases.

* When creating the object new

* Constructor calls between constructors, the constructor of the same class, and the subclass calls the constructor of the parent class.

* Mutual invocation of constructors of the same class, passing the received argument value to another constructor.

C # Constructors