Programmer Group

Technological process: Application of single chain table 1. Establishment of single chain table: Using one-way linked list with head to realize - ranking management of heroes of the marsh Complete the addition, deletion, modification and query of heroes, note: delete, modify and search The firs ...

1, String object· 1,What is a string //Enclosed by single quotation mark, double quotation mark and triple quotation mark 2,Definition string s = 'today is friday' ss = "wo shi meinv" sss = """wo bu hui""" s1 = str("aaa") 3,Common methods for Strings: 1)'capitalize' #Capitalize the first l ...

Today, I'll show you the use case of multithreading. Hope to help you, please see the following list, thank you! Use of thread pool public static ExecutorService newFixedThreadPool(int nThreads); Get a thread object. The initialization parameter is the required number of threads in the current th ...

5.vins_estimator Basically, most of the functions in VINS are under this package, including IMU data processing (front end), initialization (I think it may belong to front end), sliding window (back end), nonlinear optimization (back end), key frame selection (part of content) (front end). When I firs ...

Preface Python is a language that represents simple ideas. Its syntax is relatively simple and easy to use. However, it would be a mistake to overlook the subtlety and depth of Python syntax. This article carefully selected ten knowledge points that can best show the subtlety of Python syntax, and attached the detailed example code. If it can b ...

Launching a thread All callable objects can be used as parameters of thread void do_some_work(); std::thread my_thread(do_some_work); class background_task { public: void operator()() const { do_something(); do_something_else(); } }; background_task f; std::thread my_thread(f); Th ...

Review purpose: Better understand the basic model idea and principle implementation of the annealing algorithm, and further optimize the previous implementation code On the basis of the original annealing algorithm, the possibility of "dead ash reburning" is introduced, which reduces the ...

In the previous article, the command-line parameters are parsed through the flag package. In fact, the input parameters are saved in a structure. In the previous article, for example, the command java -classpath hello.jar HelloWorld, how can the HelloWorld class be found? Is it directly found in hello.jar? Remember java's class loading mechanis ...

14.8 function call operators Overloaded function call operator class, its object can make the same behavior as a function, so we call such an object a function object. Compared with ordinary functions, function objects can save some states, which are actually their data members. This is actually the s ...

1. itertools iterator function itertools includes a set of functions for processing sequential datasets.The functions provided by this module are inspired by similar features in functional programming languages such as Clojure, Haskell, APL, and SML.The goal is to be able to process quickly, use memory efficiently, and join together to represen ...