Tag: definition

View gcc default macro definition

Basic commands Execute the gcc -E -dM test.c command to view the default macro definition of gcc on the current system, where test.c is a c source file with empty content. Extension Embedded gcc can add CPU parameters to see the default macro definition of gcc under the current compilation configuration, for example, execute the […]

Spring IOC – BeanDefinition parsing

1. Properties of BeanDefinition BeanDefinition as an interface defines the get and set methods of properties. These attributes are basically defined in its direct implementation class AbstractBeanDefinition. The meaning of each attribute is as shown in the following table: Type Name Meaning Constant SCOPE_DEFAULT Default scope: singleton mode AUTOWIRE_NO no autowiring AUTOWIRE_BY_NAME Autowire by name […]

[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 […]

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”. […]

The definition of closure in javascript, the operating principle of javascript closure

Hello everyone, the editor is here to answer the following questions for you, the definition of closure in javascript, and the operating principle of javascript closure. Now let us take a look together! Closures are a tricky JavaScript concept to understand because it’s hard to see how they are actually used. Unlike other concepts such […]

4. Construction and registration of BeanDefinition

Foreword In the last article, we talked about the source code of the processBeanDefinition(ele, delegate) method: //This method requires two parameters: 1. The child node element parsed before, 2. The parser protected void processBeanDefinition(Element ele, BeanDefinitionParserDelegate delegate) { //Here the element object is parsed into a BeanDefinitionHolder object. This BeanDefinitionHolder is equivalent to a layer […]

3. The general process of Spring reading XML encapsulated BeanDefinition

Foreword: The previous article introduced the Resource interface and introduced the core content of the Spring IOC factory. This article will explain the general process of how Spring’s bottom layer reads XML through XmlBeanDefinitionReader and encapsulates it into a BeanDefinition. Spring reads the process of XML encapsulated BeanDefinition Call the XmlBeanFactory constructor. Spring reads XML […]

Project practice: component scanning (5) – parse methods with GetMapping or PostMapping and finally encapsulate them into ControllerDefinition

1. ControllerDefinition package com.csdn.mymvc.core; import lombok.AllArgsConstructor; import lombok.Data; import lombok.NoArgsConstructor; import java.lang.reflect.Method; import java.util.HashMap; import java.util.Map; //Suppose there is a uri:/fruit/index @Data @NoArgsConstructor @AllArgsConstructor public class ControllerDefinition { private String requestMapping; private Object controllerBean; private Map<String, Method> methodMappingMap = new HashMap<>(); } 2. ComponentScan package com.csdn.mymvc.core; import com.csdn.mymvc.annotation.*; import java.io.File; import java.lang.annotation.Annotation; import java.lang.reflect.Field; import […]

4.Mysql data definition language DDL

Article directory 1. Database definition syntax Create database Delete database Use or switch Modify database 2. Data table definition syntax Create data table Delete data table Modify data table View and use data tables Common temporary table definition syntax Common view definition syntax DDL (Data Definition Language) is a data definition language used to operate […]