deep-copy

来源： https://stackoverflow.com/questions/6279305/typeerror-cannot-deepcopy-this-pattern-object

来源： https://stackoverflow.com/questions/6279305/typeerror-cannot-deepcopy-this-pattern-object

来源： https://stackoverflow.com/questions/29989516/deep-copying-structs-with-char-arrays-in-c-how-to-copy-the-arrays

来源： https://stackoverflow.com/questions/29989516/deep-copying-structs-with-char-arrays-in-c-how-to-copy-the-arrays

问题 I am trying to write a procedure do the deep copy of List<List<Integer>> , and I am doing like this: public static List<List<Integer>> clone(final List<List<Integer>> src) { List<List<Integer>> dest = new ArrayList<List<Integer>>(); for( List<Integer> sublist : src) { List<Integer> temp = new ArrayList<Integer>(); for(Integer val: sublist) { temp.add(val); } dest.add(temp); } return dest ; } Is this a good way to do? Is it possible to get rid of the inner loop? The fact is that each of the

问题 I am trying to write a procedure do the deep copy of List<List<Integer>> , and I am doing like this: public static List<List<Integer>> clone(final List<List<Integer>> src) { List<List<Integer>> dest = new ArrayList<List<Integer>>(); for( List<Integer> sublist : src) { List<Integer> temp = new ArrayList<Integer>(); for(Integer val: sublist) { temp.add(val); } dest.add(temp); } return dest ; } Is this a good way to do? Is it possible to get rid of the inner loop? The fact is that each of the

问题 I have a Linked List and I'm trying to create a copy of another Linked List and this copy is a deep copy because the element type is char. Due to the complexity of linked lists, I've tried not to use the add method. My code is shown below. Also I want to recursively add all the elements from some list to my original list but the problem with my implementation is that it only adds the first element in the list and not all of it. Why is this so? public class CharLinkedList { private static

问题 I have two classes one called warehouse and one called Warehouselocations. The wareHouse is currently able to create,store and find boxes in warehouselocation. But now i also need the warehouse to be able to create a cloned version of wareHouseLocation with all the stored information. locations = new List<WareHouseLocation>(); This is the list where i store all the information. I want to be able to copy it. I tried to find the answer my self and even tried some code but so far i had got

问题 I have two classes one called warehouse and one called Warehouselocations. The wareHouse is currently able to create,store and find boxes in warehouselocation. But now i also need the warehouse to be able to create a cloned version of wareHouseLocation with all the stored information. locations = new List<WareHouseLocation>(); This is the list where i store all the information. I want to be able to copy it. I tried to find the answer my self and even tried some code but so far i had got

问题 This question already has answers here : How to override the copy/deepcopy operations for a Python object? (7 answers) Closed 2 years ago . I have object which has it's own content (i.e. list of something) and a reference to another object, with which it is linked. How can I exclude the reference to the other object from being deep-copied? from copy import deepcopy class Foo: def __init__(self, content, linked_to): self.content = content self.linked_to = linked_to a1 = Foo([[1,2],[3,4]], None