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/****************************************** ***** Deque:**************************************** ******* Random access is allowed. elements are inserted and deleted in the ** header and tail **. the time complexity is O (1)* Random Access container

1VectorThe vector corresponds to an arrayAllocates a contiguous memory space in memory for storage. Supports storage that does not specify a vector size. STL internal implementation, first allocate a very large memory space to store, that is, the

STL provides three basic containers: vector, list, And deque.Like the built-in array, vector has a continuous memory space and the starting address remains unchanged. Therefore, it supports instant access, that is, the [] operator, however, because

Basic introduction of Collections Module As we all know, Python has some built-in data types, such as str, int, list, tuple, dict, and so on, the collections module provides several additional data types based on these built-in data types:

The article is too long, do not introduce too much, anyway, the head of the article explains the approximate meaning ...The original text reads as follows:Wrote a simple queue task to handle. Multi-process tasks, which may be used by asynchronous

Original address: http://hsw625728.blog.163.com/blog/static/3957072820091116114655254/A The characteristics of various containers Vector Typical sequence container,C + + standard strict requirements for the implementation of the

Collection module, 1. nametuple -- factory function for creating tuple subclasses with named fields Create a data type similar to the parent database. In addition to being able to access data using indexes, data can be iterated, and data can be

Python3 crawler entry and Regular Expression In the previous python 3 getting started series, we also introduced python crawler tutorials and shared them with you. crawlers are simple, it is to capture network data for analysis and processing.

Today's content:Re moduleCollentions ModuleRegular expressions1.re module:The common methods under the RE module are:1 ImportRe2 #1.re.findall ()3Ret1 = Re.findall ('a','Eva Egon Yuan')#take ' a ' for the eye and find all. and returned as a list. 4

Templates parameterize the data types to be handled by a function or class, that is, the polymorphism of the parameters. is a code reuse mechanism. Function templates have several overloads that define function templates with the same name, provide