'y':4}}# 浅拷贝shallow=copy.copy(nested_dict)shallow['c']['z']=5# 深拷贝deep=copy.deepcopy(nested_dict)deep['c']['w']=6print(f"原始字典: {nested_dict}")# {'a': 1, 'b': 2, 'c': {'x': 3, 'y': 4, 'z': 5}}print(f"浅拷贝后: {shallow}")# {'a': 1, 'b...
import copy a = ['hello',[1,2,3]] b = copy.copy(a) for x in (a,b): print(x) print("update") a.append(4) for x in (a,b): print(x) 注意: 浅拷贝b = copy.copy(a)等价于b = a[:] 一张旧船票,已经登不上远去的客船。 深拷贝: from copy importdeepcopya = ['hello',[...
deepcopy()函数会递归复制字典及其所有嵌套的子对象,创建一个全新的字典。 deepcopied_dict=copy.deepcopy(original_dict) 1. 以上代码将原始字典original_dict进行深拷贝,得到一个全新的字典deepcopied_dict。 完整示例代码 importcopy original_dict={'key1':'value1','key2':'value2'}deepcopied_dict=copy.de...
copied_dict=copy.deepcopy(original_dict)# 进行深拷贝 1. 注释:copy.deepcopy(original_dict)这一行代码会创建原始字典original_dict的深拷贝,所有的嵌套元素也会被复制到新的字典copied_dict中。 4. 查看原始字典和拷贝字典的内容 为了确认深拷贝是否成功,我们可以打印出两个字典的内容。 print("Original Diction...
Deep Copy: The Complete Clone When you need a true, independent copy of your dictionary - inner contents and all - deep copy comes to the rescue. To create a deep copy, we need to import Python's copy module and use its deepcopy function: Runimport copy country_info = { "Greece":...
python 字典 deepcopy 文心快码 在Python中,深拷贝(deepcopy)是一个重要的概念,尤其当你需要处理复杂的数据结构时。下面,我将详细解释深拷贝的概念、如何在Python中实现它,以及它与浅拷贝的区别。 1. 什么是深拷贝(deepcopy)? 深拷贝是指创建一个新的对象,并且递归地复制该对象中的所有子对象。这意味着新对象...
Using the deep copy (deepcopy() method) By using thedeepcopy()method ofcopypackage, you can also create a copy of the dictionary and make the changes in the copied dictionary. Example Consider the below program - importcopy dict1={"key1":"abc","key2":"efg"}print(dict1)dict4=copy....
copy模块的copy()方法 深拷贝 A deep copy constructs a new compound object and then, recursively, inserts copies into it of the objects found in the original. 上面这段话是官方文档上的描述,也是有2个含义: 1.深拷贝和浅拷贝一样,都会创建一个新的容器对象(compound object) ...
import copy dict = {"a" : "apple", "b" : {"g" : "grape","o" : "orange"}} dict2 = copy.deepcopy(dict) dict3 = copy.copy(dict) dict2["b"]["g"] = "orange" print dict dict3["b"]["g"] = "orange" print dict 好文要顶 关注我 收藏该文 微信分享 代码王子 粉丝- 13...
要在Python中创建深度复制,可以使用copy模块的deepcopy函数。 考虑一个使用列表的示例。 # Linux迷 www.linuxmi.comimport copy main_list = [200, 300, ["I", "J"]]deep_copy = copy.deepcopy(main_list) # 修改内部和外部列表deep_copy[2][0] = "K"main_list[0] = 500 ...