Involving knowledge points Sorted set string Title You are given three strings a, b and c. Your task is to find the string with the shortest length, and these three strings are all its substrings. If there are multiple such strings, please return the one with the smallest lexicographic order. Please return a string that […]
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[Web Test] JavaScript function definition and call
Function 1. Definition and calling of functions 2. Anonymous functions 1. Definition and calling of functions 1. Function: also known as “method”, solves the problem: realizes the encapsulation of code blocks corresponding to different functions ?Example: Function/method—–>Encapsulated code block—–>Realize a certain function <!DOCTYPE html> <html> <head> <meta charset=”utf-8″> <title></title> </head> <body> <script language=”javascript”> //Fun01 with […]
Weather display based on Wemos D1 Mini Pro development board
1. Basic introduction This project designs a weather display that can be controlled by touch. It is mainly composed of Wemos D1 Mini Pro and TFT display. Wemos D1 Mini Pro is used as the main control chip of the device to send out Wi-Fi signals and receive corresponding instructions. It transmits the received information […]
Problems encountered when maintaining domain name cache within the application
In a recent project I participated in, I encountered a series of problems that relied on DNS servers to resolve external business clusters. The remote business cluster provides business services based on the HTTP/HTTPS protocol. The cluster contains multiple business nodes. In the current solution, domain names are configured on the DNS server to point […]
CNN model training–Code practice for verification code identification
Tip: After the article is written, the table of contents can be automatically generated. For how to generate it, please refer to the help document on the right. Article directory Summary Abstract CNN model training–Verification code identification 1. Code practice 2. Clarify training needs 3. Collect training data 4. CNN network architecture 5. Model training […]
Initial MySQL (2) (add, delete, check and modify tables)
Table of Contents Modify table CRUD (add, delete, modify, check) insert statement (add data to the table) update statement (modify data in the table) delete delete statement select statement Modify table Add column ALTER TABLE tablename ADD (column datatype [DEFAULT expr] [, column datatype] …); Modify column ALTER TABLE tablename MODIFY (column datatype [DEFAULT expr] […]
k-Wave丨Photoacoustic imaging simulation丨Definition of Gaussian sensor frequency response + comparison of simulation functions + setting of initial pressure gradient (5)
This article introduces– 1.How to define Gaussian sensor frequency response: How to express the frequency response of a detector (for example: piezoelectric ultrasonic transducer) when the response has a Gaussian shape, based on the example of a homogeneous propagation medium; 2.Comparison of simulated functions: Introducing a brief comparison between the simulated functions “kspaceFirstOrder2D” and “kspaceecondorder”. […]
Gorm project practice-using gen and defining relationships between tables
gorm project practice ER diagram Relationship arrangement One-to-one relationship: User and UserLog: One user corresponds to one user log, and a one-to-one relationship is established through the primary key of the User model and the foreign key of the UserLog model. One-to-many relationship: User and Teacher: One user can correspond to multiple teachers, through the […]
Explore Miniconda3: a simple and flexible Python environment and software package management tool
Miniconda3 installation and configuration notes Foreword Miniconda3 is a lightweight Anaconda distribution that provides a flexible and simplified way to manage Python environments and packages. This article will introduce how to install, configure and manage Miniconda3, as well as use the conda command to manage the environment and software packages. Article directory Miniconda3 installation and […]
Yolo-Fastest with environment + training + testing
Yolo-Fastest configuration environment + training + testing Table of contents 1. Matching environment 2. Training 3. Test 1. Matching environment opencv451 vs2019 cmake3.28.0 2. Training 3. Test Directory 1. Environment configuration 2. Training 3. Test Reference for the entire process: YOLO-Fastest trains its own data set: The whole process of training Yolo-Fastest model on Win10 […]