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Copy&mutablecopy shallow copy (shallow copy) dark copy (deep copy)

Label:This article is from here, the original author Weibo MicrocaiConceptThere 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

OC copy Basic use (deep copy and shallow copy)

Label:first, what is copy? Copy literally means "copy", "Copy", which is the process of generating a copy.Common replication is: file copy, the role is to use a source file to produce a copy file.Features: 1, modify the contents of the source file,

Deep copy and shallow copy of copy constructors in C + +--"shallow copy" and "Deep copy"

Tags: deep copy and shallow copy C + + shallow copy of C + + deep copy constructorcopying objects in C + + is like cloning, which quickly replicates multiple identical objects with an existing object. In general, the following three scenarios will

Deep copy and shallow copy of IOS collection

Label: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

Deep copy and shallow copy of iOS

Label: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

Deep copy and shallow copy of IOS collection

Label:Transferred from: https://www.zybuluo.com/MicroCai/note/50592ConceptThere 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

Deep copy and shallow copy of IOS collection

Label:Deep copy and shallow copy of IOS collectionArchivesiOSConceptThere 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

Deep copy and shallow copy

Label: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

Brief analysis of shallow copy and deep copy (copy and mutablecopy) in IOS _ios

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 poin

Deep copy and shallow copy of IOS collection

Label: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

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