The slow startup speed of applications is a problem we often encounter during the development process, such as black screen and white screen problems caused by slow startup. This blog will introduce the relevant knowledge of App startup optimization. How to launch the app Generally speaking, there are two starting methods: cold start and hot […]
Tag: orm
C# Onnx LSTR Transformer-based end-to-end real-time lane line detection
Table of Contents Effect Model information project code download Effect End-to-end real-time lane line detection Model information lstr_360x640.onnx Inputs ———————– name: input_rgb tensor: Float[1, 3, 360, 640] name: input_mask tensor: Float[1, 1, 360, 640] ————————————————– ————- Outputs ———————– name:pred_logits tensor：Float[1, 7, 2] name:pred_curves tensor：Float[1, 7, 8] name:foo_out_1 tensor：Float[1, 7, 2] name:foo_out_2 tensor：Float[1, 7, 8] name:weights […]
A front-end performance optimization – performance score from 56 to 96
Big factory technology advanced front-end Node advanced Click above for Programmer Growth Guide and follow the official account Reply 1, join the advanced Node communication group Author:NewName https://juejin.cn/post/7273072756156235834 I recently read an article on front-end performance optimization. I had never done any performance optimization before, so I just studied it. If you want to optimize […]
13 Case Studies | How does TCP congestion control cause business performance jitter?
This lesson will share with you the relationship between TCP congestion control and business performance jitter. TCP congestion control is the core of the TCP protocol and is a very complex process. If you don’t understand TCP congestion control, you don’t understand the TCP protocol. The purpose of this lesson is to introduce some pitfalls […]
Django ORM-based CURD, foreign key association, request life cycle
Article directory CURD based on ORM ORM foreign key association Django request life cycle flow chart CURD based on ORM In essence, it is to add, delete, modify and check the data in the database through object-oriented method. Here we will combine all our previous content together. First, make sure that the UserInfo table has […]
How to use qt to notify the mainwindow interface of changes in the subform?
1. Signals and slots The subform can notify the main form (MainWindow) of interface changes through the signal and slot mechanism. Here is a simple example that demonstrates how to define a signal in a subform and then wire up this signal in the main form to respond when changes occur. // ChildWindow.h #ifndef CHILDWINDOW_H […]
Custom annotations prevent forms from submitting code repeatedly
/** * Custom annotations to prevent repeated submission of forms * * @author LZJ */ @Inherited @Target(ElementType.METHOD) @Retention(RetentionPolicy.RUNTIME) @Documented public @interface RepeatSubmit { /** * Interval time (ms), less than this time is considered a repeated submission */ int interval() default 3000; /** * Interval time unit (milliseconds) */ TimeUnit timeUnit() default TimeUnit.MILLISECONDS; /** * […]
Node.js builds web server, interface configuration, parameter format and garbled code processing
Node.js Overview Node.js is not a new programming language, nor is it a JavaScript library, but a JavaScript running environment, and it is also the second running environment for JavaScript outside of the browser. We can run all the features of ES6 on node.js without worrying about any compatibility issues. In addition to its good […]
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 […]
Examples of various table relationships used by gorm – primary and foreign keys -> struct
Examples of various table relationships used by gorm-primary and foreign keys->struct One-to-many relationship (users and articles) like: Boss and employees Goddess and licking dog teacher and student Classes and students Users and articles … Take users and articles as examples models should be like, Attention! ! : The ID in the User table should be […]