3, 4, 5, 6, 7, 8, 10}print(set1.union(set2))# {1, 2, 3, 4, 5, 6, 7, 8, 10}# 差集print(set1-set2)# {1, 3, 5, 7}print(set1.difference(set2))# {1, 3, 5, 7}# 对称差print(set1^set2)# {1, 3, 5, 7, 8, 10}print(set1.symmetric_difference(s...
总之，tuple 放弃了对元素的增删（内存结构设计上变的更精简），换取的是性能上的提升：创建 tuple 比 ...
Code:https://github.com/lotapp/BaseCode 多图旧版:https://www.cnblogs.com/dunitian/p/9156097.html 在线预览:http://github.lesschina.com/python/base/pop/3.list_tuple_dict_set.html 今天说说List、Tuple、Dict、Set。POP部分还有一些如Func、IO(也可以放OOP部分说)然后就说说面向对象吧。 先吐槽一下...
Tuple=(1,2,3) 2. Mutable lists vs immutable tuples The main difference between lists and tuples is the fact that lists are mutable whereas tuples are immutable. It means that we can modify a list after it has been initialized i.e. we can add, update or even delete items in a list...
Another difference between strings and lists is that strings are immutable, whereas lists are mutable. 除了这两个区别之外,字符串和列表当然也有自己的方法。 In addition to these two differences, strings and lists, of course,come with their own methods. 通常情况下,列表只包含一种类型的对象,尽管这...
--fromDifference between hash() and id() list Lists aremutablesequences, typically used to store collections of homogeneous(同种的) items (where the precise degree of similarity will vary by application). 1 2 3 4 5 6 7 8 9 """ ...
n - 1. This is useful if you areconcatenating objects where the concatenation axis does not havemeaningful indexing information. Note the index values on the otheraxes are still respected in the join.keys : sequence, default NoneIf multiple levels passed, should contain tuples. Constructhierarchic...
Many processes in nature involve randomness in one form or another. 自然界中的许多过程都以这样或那样的形式涉及随机性。 Whether we investigate the motions of microscopic molecules or study the popularity of electoral candidates,we see randomness, or at least apparent randomness, almost everywhere. 无...
Adding an argument is straightforward: you simply insert the argument’s name between the parentheses on thedefline. This argument name then becomes a variable in the function’s suite. This is an easy edit. Let’s also remove the line of code that prompts the user to supply a word to ...
There is a difference between sys.argv[0] and __file__ of the main module for the onefile mode, that is caused by using a bootstrap to a temporary location. The first one will be the original executable path, whereas the second one will be the temporary or permanent path the bootstrap...