1. The origin of the virtual keyword In the early design of C++, member variables of derived classes can be accessed through base class pointers. This is because the layout of derived class objects in memory is that base class member variables come first, and derived class member variables come first. >After. Therefore, when we […]
Tag: keyword
final keyword and key class
1 final keyword 1.1 Definition The final keyword represents final and unchangeable. 1.2 Usage Four common uses: 1. Can be used to modify a class public final class class name { //… } Meaning: The current class cannot have any subclasses, but it can have a parent class. (eunuch type) Note: If a class is […]
yield keyword in Python
In Python, yield is an important keyword, which is closely related to generator (Generator) and lazy evaluation (Lazy Evaluation). yield allows a function to yield values during iteration without having to calculate them all at once. This feature is especially useful when working with large data sets or infinite sequences. 1. yieldKeyword 1.1 Basic concepts […]
[Elementary C++ (3)] Reference & inline function & auto keyword
Table of Contents Preface 1. Quote 1.1 The concept of citation 1.2 Characteristics of references 1.3 Permission to quote 1.4 Use of references 1.5 The difference between references and pointers 2. Inline functions 2.1 What is an inline function? 2.2 Characteristics of inline functions 3. auto keyword 3.1 auto introduction 3.2 Auto usage rules 3.3 […]
selenium obtains CNKI document information based on [keyword]
Hello everyone, I am Xianyu Xianyu has written several articles about CNKI crawlers before, and the backend response has been very good. Although, Xianyu couldn’t help but want to complain. Some friends didn’t finish reading the article or even the code, so they asked me “Why can I only crawl so many pieces of literature […]
[Signal] Signal processing {Timing of signal processing; kernel mode and user mode; principle of signal capture; signal processing function: signal, sigaction; reentrant function; volatile keyword; SIGCHLD signal}
1. Timing of signal processing 1.1 When does the operating system perform signal processing? First of all, we need to make it clear that the data structures for managing signals are all in the process PCB, and the process PCB belongs to the kernel data. Therefore, signal detection and processing must be performed in the […]
declare keyword in TypeScript
declare keyword 1. Introduction The declare keyword is used to tell the compiler that a certain type exists and can be used in the current file. Function: It allows the current file to use types declared by other files. For example, if your script uses a function defined by an external library, the compiler will […]
static keyword (C++)
1. Static in process-oriented design 1. Static global variables Add the keyword static before a global variable, and the variable is defined as a static global variable. Let’s first give an example of global variables and static global variables. For example, define static global variable i and global variable j in file A: #include<iostream> using […]
Solving python\ops\seq2seq.py TypeError: ms_error() got an unexpected keyword argument labels
Table of Contents Solve python\ops\seq2seq.py TypeError: ms_error() got an unexpected keyword argument ‘labels’ Problem Description Solution in conclusion Practical application scenario: text summary generation Solve python\ops\seq2seq.py TypeError: ms_error() got an unexpected keyword argument ‘labels’ Recently, when using TensorFlow’s seq2seq module, I encountered the error ??TypeError: ms_error() got an unexpected keyword argument ‘labels’??. After careful troubleshooting […]
Keyword lookup in Postgresql
Query by keyword in Postgresql, generally using the like statement. for example: select name from poi where name like ‘%key word%’. But as we all know, this matching rate is not satisfactory. This article uses examples to use the pg_trgm extension to achieve a more perfect keyword query. Create a new data table as follows: […]