Programmer Think

A lot of exception handling is involved in the process of business development. Usually @ ControllerAdvice and @ ExceptionHandler are used to handle various exceptions, but the process of throwing exceptions still can not avoid a lot of if Else judged that I happened to see an article today( Why not recommend using try catch to handle exception ...

Chapter 1 of "graph theory" and check the class to pass A. [example 1] [template] and search set subject code #include <iostream> #include <cstdio> #define nn 10010 using namespace std; int read() { int re = 0; char c = getchar(); while(c < '0' || c > '9') c = getchar(); while(c >= '0' && ...

preface Today, we developed AIDL, created a new interface and wrote a function. As a result, we reported an error when build ing Process 'command 'xxx/aidl'' finished with non-zero exit value 1 After a long time of trying, I finally got it. During this period, I reviewed a lot of knowledge and summarized it together. Data types support ...

Title Description Sima Guang, a historian of the Song Dynasty, has a famous "theory of virtue and talent" in his "Zizhi Tongjian": "therefore, the perfection of talent and virtue is called a saint, the death of talent and virtue is called a fool, the victory of virtue is called a gentleman, and the victory of virtu ...

Finally understand away3d's SkeletonAnimator. Here, write down the specific steps of using SkeletonAnimator; 1: Skeleton animation: use 3dmax to make a short animation; And export to files through format plug-ins / scripts; The md5 export script of max is used here; After the animation is finished, select the menu bar - MAXscript - > Run scr ...

Simple implementation of dictionary tree, prefix tree and Trie tree [insert, search and find prefix] 1.Trie tree Trie tree, namely prefix tree, also known as word lookup tree and dictionary tree, is a tree structure and a variant of hash tree. The typical application is to count and sort a large number of strings (but not limited to strings), ...

1. Maze Title Description Recently, little Y is playing a maze game. The game is played on an n * m grid. Each grid may be an open space or an obstacle. At the beginning of the game, the character controlled by the player is located in an open space in the figure. During the game, players can use the up, down, left and right keys to control ...

Placeholder #A multiplication Total score of this question: 5 points Problem description   Xiaolan found that he would 1 1 1 to 1000000007 1000000007 Different numbe ...

1, Preparatory work 1. Download SDK 4.0 of hongruan face recognition value-added version 1) Register and log in to the developer center 2) Download hongsoft face recognition SDK 2. Install Unity3D and Visual Studio 2019 development environment 1) Install Unity Hub 2) Install Unity 2020.3.1f1c1 2, Create DEMO project 1. Create Unity proj ...

Connection reference: https://access.redhat.com/documentation/zh-cn/red_hat_enterprise_linux/7/html/logical_volume_manager_administration/dmsetuphttps://man7.org/linux/man-pages/man8/dmsetup.8.html 1. Introduction The dmsetup command is a command line wrapper used to communicate with Device Mapper. You can use the info, ls, status, and ...