Http://www.cnblogs.com/BlueTzar/articles/1223313.html
-------------------------------------------------- C ++ copy constructor (deep copy, light copy)
For common objects, copying between them is very simple, for example:Int A = 88;Int B
Http://blog.csdn.net/xdrt81y/article/details/24331103Before reading this article, I first want to know the differences between copy and retain. If there are any errors, I hope you can give me more advice:
Differences between copy and retain:
Copy is
(If you encounter the problem of deep copy and shortest copy during encoding today, find this article online and repost it by: Yangchen.) before reading this article, first understand the differences between copy and retain, if there are any errors,
Before reading this article, I first want to know the differences between copy and retain. If there are any errors, I hope you can give me more advice:
Differences between copy and retain:
Copy is to create a new object, retain is to create a
iOS provides a copy and Mutablecopy method, as the name suggests, copy is a copy of a Imutable object, and Mutablecopy is a copy of a mutable object.
The difference between copy and retain:
Copy is to create a new object, retain is to create a
ConceptThere are two ways to copy objects: Shallow copy and deep copy. As the name implies, shallow copy, not copy the object itself, just copy the pointer to the object; Deep copy copies the entire object memory directly into another memory.A
How objects are copied in Python:
(1) Assigned value, (2) shallow copy; (3) deep copy
Assignment operations (including objects as arguments, return values) do not open up new memory space, it simply duplicates the new object's reference;
A shallow
1. Deep copy and shallow copyA copy is usually referred to as copy or Clone (clone), and the copy of the object is a new object that duplicates an "exact" one from an existing object. Although they are all copied objects, different methods of
Original: http://blog.csdn.net/xdrt81y/article/details/24331103 before reading this article first understand the difference between copy and retain, if there is not the right place to look at you more advice:The difference between copy and
Http://www.cnblogs.com/BlueTzar/articles/1223313.htmlFor normal types of objects, replication between them is simple, for example:int a=88;int b=a;And the class object is different from ordinary object, the inner structure of class object is
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