Learning immediately: https://edu.csdn.net/course/play/474/5128?utm_source=blogtoedu
Constructors tips:
No need to call, automatically executed when creating objects
The name of the constructor must be the same name with the class
Constructor does not have any type, no value is returned
Initialization parameter table
Generally not added to the contents of the constructor initializes independent
In the member function input and output caution