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Beautifulsoup4 It is an HTML or XML parsing library of python, which can be used to easily extract data from web pages. Dependent device: python standard library "html.parser" Use: BeautofulSoup(markup, "html.parser") Advantages: Python's built-in standard library; moderate executi ...

The last time I talked about this() method, let's look at register (annotated Classes); method. // New Annotation Config Application Context (AppConfig. class); source code public AnnotationConfigApplicationContext(Class<?>... annotatedClasses) { //Call the default parameterless constructor, which has a lot of initialization logic ...

Links to the original text: https://www.jianshu.com/u/8f2987e2f9fb Python's locals() function returns all local variables of the current location in dict type. Sample code: ''' //Nobody answered the question? Editor created a Python learning ...

Java's super keyword Step 1: Prepare a parent class that explicitly provides a parametric constructor Prepare the parent class that explicitly provides a parametric-free constructor When instantiating a Hero object, its constructor prints "Hero's Construction Method“ package charactor; import property.Item; public class Hero { ...

input tags are often used in projects to upload files, which are usually picture files. Pictures have many formats. We only need several of them. We need to validate the files uploaded by users. There is a new attribute in HTML5: accept file type restriction. But usually we use javascript or jQuery t ...

premise It's been 7 or 8 years, and I've always wanted to make a beautiful set of custom controls, so I've got this series of articles. GitHub: https://github.com/kwwwvagaa/NetWinformControl Code cloud: https://gitee.com/kwwwvagaa/net_winform_custom_control.git If you think it's OK, please click ...

Introduction to maven-jar-plugin configuration Recently, I learned the springboot multi-module jar package deployment project, and used the maven-jar-plugin plug-in. I'll study it carefully. I won't say much nonsense. Look down. The maven plug-in functions: compile, package, deploy... are all in the ${project. build. directory}/ classes file ...

Qutas mainly completes the definition of quota catalogue: Restriction information contains the required size of a path In zk, the directory structure is / zookeeper/quota/xxx/zookeeper_limits State information contains the actual size of a path /zookeeper/quota/xxx/zookeeper_stats And provide the restricted path and state path methods corr ...

I. Preparations Synchronize the swagger API to easyMock and then modify the contents of / gathering/gathering (GET method) { "code": 20000, "flag": true, "message": "@string", "data|10": [{ "id": "@string", "name": "@cword(8,12)", "summary": "@cword(20,40)", "detail": "@cword(20,40)", "s ...

Common functions of inspect module import inspect # Import inspect module inspect.isfunction(fn) # Detecting whether fn is a function inspect.isgenerator((x for x in range(10))) # Check if it's a generator inspect.isclass(int) # Check if int is a class inspect.isbuiltin(print) # Check if print ...