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I'm a stranger to object-oriented Python programming, especially when it comes to multiple inheritance, and it's hard for me to understand the super() function (the new style class). For example, if you have something similar: class First(object): def __init__(self): print "first" class Second(object): def __init__(self): ...

End of closure[ see ], explore namespace again. For namespaces, the official documentation has been detailed[ see ], I have done some practice and summary here. One of the most explicit purposes of namespace is to solve the problem of duplicate names. Two functions or classes are not allowed to have the same name in PHP, otherwise a fatal err ...

Description of C language style operators used in this paper: =Assignment ==Equal to < less than < = less than or equal to ~Reverse by position &Bitwise AND ^Bitwise XOR |Bitwise OR < cycle left >>>Cycle right 4.1 initial value There's nothing to say about this. Just copy the standard documents: 7380166f 4914b2 ...

Weed3, micro ORM framework (support: java sql, xml sql, annotation sql; stored procedure; transaction; cache; monitor; etc.) The first generation was developed in 2005; In 2008, the second generation was developed. At that time, it entered the Internet company and had a new understanding of performance; The third generation was developed in 14 ...

What is the concept of global logging? It's easy to understand. Like one of the parts of the logging framework we've always used like logback and log4j, the minbox-logging distributed logging framework is now independent of api-boot-plugins and has joined the minbox-projects open source organization. The blog has a series of articles explainin ...

Source code for this article: GitHub. Click here || GitEE. Click here 1. Listener listener 1. Introduction to concepts There are three components of JavaWeb: Servlet, Listener, Filter.A listener is a component that monitors the state changes of related objects in an application. 2. Event Source Object Refers to the object being listened on. ...

Definition of anonymous functionlambda parameter_list: expressionTwo: ternary expression Result returned when the condition is true if the condition determines the result returned when else condition is falseThree: map map(func(arg1, arg2...), list1_arg1, list2_arg2)， Perform the previous functions (mathematical mapping) on the list e ...

In recent days, we have just set up a small project server, which uses the combination of docker + (jenkins, nginx, PHP FPM, mysql, redis). Let's summarize today. Docker has been out for a long time. Even the k8s high-end gadget is very "popular". To be honest, this is the first time I use docker in a production environment. Using d ...

Echo edit, welcome to reprint, reprint please declare article source.Welcome to add echo WeChat (Micro Signal: t2421499075) to exchange learning.Never lose a hundred battles, never claim to be a constant winner, never fail, and always strive to move forward.- That's really powerful!!! As we use many of the images in the docker library, we can ...

bind function of UDP sender in network programming The effect of calling bind function on the sender of upd: assign socket to a specific port. If bind is not called, the kernel will randomly assign a port. The purpose of the upd sender calling the bind function: if there are two senders and the receiver needs to identify which sender is co ...