C++ notes (class22.4) constructor
Table of contents
Special member functions in classes: constructors
Every class has at least one constructor
default constructor
custom default constructor
The constructor modified by the explicit keyword will disable type conversion
In-depth understanding of constructors
use member initializer list
experiment one
Experiment 2
Summary ...
Posted by guyfromfl on Mon, 20 Feb 2023 15:31:17 +0300
[Basic] Flink -- ProcessFunction
Handler Overview
In order to make the code more expressive and easy to use, Flink itself provides a multi-layer API for us to choose from, as shown in the figure below. The conversion, aggregation, and window functions we have learned before are all implemented based on Flink's core DataStream API.
At a lower level, Flink allows us ...
Posted by IgglePiggle on Mon, 20 Feb 2023 15:28:24 +0300
[Vue3 source code] The second chapter is the perfect supplement of effect function
[Vue3 source code] The second chapter is the perfect supplement of effect function
foreword
In the previous chapter, we implemented the stop and onstop functions of the effect function. This time, we will optimize the stop function.
Optimize the stop function
In our previous unit test, stop has successfully stopped the responsive update (cl ...
Posted by autumn on Sun, 19 Feb 2023 22:01:05 +0300
What happens after ReactDOM.render is executed in the react source code?
ReactDOM.renderUsually used as shown below, render a React element in the provided container and return a reference to the component (or null for stateless components). This article mainly analyzes the execution process of ReactDOM.render in the follow-up article to analyze the details of creating and updating. The source code part of the artic ...
Posted by jamescalvin on Sun, 19 Feb 2023 09:51:21 +0300
Audio Signal Processing Notes
Related courses: [Audio Signal Processing and Deep Learning Tutorial]
0
Superposition of signals: https://teropa.info/harmonics-explorer/
A complex signal is decomposed into the sum of several simple signal components. Superposition of different frequency signals: Due to the sum-difference product, an envelope structure and a fine structu ...
Posted by hustler on Sun, 19 Feb 2023 02:17:17 +0300
[K8S] [minikube] Use nginx reverse proxy to achieve external access to apiserver
List of external access methods
nginx reverse proxy How to use: Install nginx on the host, modify the nginx.conf file to add the stream module and configure proxy_pass, as follows
#Four-layer TCP reverse proxy case
stream {
server {
# Proxy server, external traffic will flow to the internal server through here, such as 192.168.1.2
...
Posted by MilesStandish on Sat, 18 Feb 2023 16:02:47 +0300
Advanced SQL Optimization - Table Connection Elimination (Join Elimination)
Advanced SQL tuning series (Channel of advanced SQL tuning)
Connection Elimination Definition
Join Elimination simplifies SQL to improve query performance by removing tables from the query without affecting the final result. Typically, this optimization is used when the query contains primary key-foreign key joins and only the primary key ...
Posted by Axcelcius on Fri, 17 Feb 2023 06:02:00 +0300
How to understand java basics_generic self-limitation?
The Mystery of SelfBounded
In the explanation of generics in "Java Programming Thoughts", self-defined types are mentioned:
class SelfBounded<T extends SelfBounded<T>>{}
The author's definition of it is "I am creating a new class that inherits from a generic type that receives its own class name as a paramete ...
Posted by jpratt on Fri, 17 Feb 2023 03:37:59 +0300
TypeScript learning type compatibility
TypeScript's type compatibility is based on structural subtyping. Structural types are a way of describing a type using only its members.
interface Named {
name: string;
}
class Person {
name: string;
}
let p: Named;
p = new Person();
// The assignment is successful, because they are all structural types, as long as the Person ty ...
Posted by jej1216 on Fri, 17 Feb 2023 01:32:43 +0300
Jigsaw puzzle game (1.0) incomplete version
jigsaw puzzle
1. Project introduction
Jigsaw puzzle game, a complete picture is divided into 16 parts, reassembled into the original picture, and only one grid can be moved at a time. In this project, it is 4*4 squares, that is, 16 scattered pictures, which are broken up each time The pictures are all random.
1. Game start interface
The pic ...
Posted by leetcrew on Tue, 14 Feb 2023 23:12:26 +0300