Programming VIP

preface In the development of programming, we often encounter functional modules with very similar functions, but the data they process is different, so we will use multiple methods to deal with different data types. But at this time, we will wonder if there is any way to use the same method to pass different types of parameters? At this time, ...

1 General Visitor pattern is a behavior pattern, which is not commonly used. It can separate the algorithmic logic acting on the object from the object itself. 2 visitor mode When we need to operate on a group of similar types of objects, we can maintain the operation logic within each object separately, but this violates the principle of singl ...

Copyright notice: This is the original article of Colin Cai, welcome to post. If you want to transfer, you must indicate the original website 　　http://www.cnblogs.com/Colin-Cai/p/12977127.html Author: Windows QQ / wechat: 6679072 　　E-mail: 6679072@qq.com In theory, function is the first class function language, which can use function ...

Bridge Pattern Separate the abstract part from its implementation part so that they can all change independently. motivation When an abstraction can have multiple implementations, inheritance is usually used to coordinate them. Abstract classes define the interface of the object, while concrete subclasses are implemented in different ways. B ...

Opening The article about Istio traffic hijacking can be found in a very detailed article in the servicemesher community at present. You can refer to: Sidecar injection and transparent traffic hijacking in Istio . In particular, the "traffic hijacking diagram" collated by the blogger can clearly see the hijacking process. Here I use ...

10. Loop statement    for loop statements, Python only provides while and for, not for...each/do...while/while...do, etc. like other programming languages. 10.1 while cycle The basic format of   while in Python is as follows: while condition: doSomething The    example code is as follows: startNum,endNum=0,5 while ...

client processing logic ConnectionPool netty related configurations are available in com.yahoo.pulsar.client.impl.ConnectionPool public ConnectionPool(final PulsarClientImpl client, EventLoopGroup eventLoopGroup) { this.eventLoopGroup = eventLoopGroup; this.maxConnectionsPerHosts = client.getConfiguration().getConnection ...

1: Background 1. Story telling Last year, all the isv short message channels on the Jushi tower of Ali connected to Ali communication. We made a connection transformation and used the. net sdk provided by Ali. website: https://help.aliyun.com/document_detail/114480.html Colleagues used ons -. Net In v1.1.3, there will be a program crash a few ...

Source network, only for learning, if there is infringement, please contact delete. Producer consumer model is a very classic model of multithreading concurrent cooperation. Understanding the producer consumer problem can deepen our understanding of concurrent programming. The so-called producer consumer problem, in fact, mainly contains two ...

0. Preface In the previous article, we introduced the addition, deletion, modification and query of SqlSugar in detail, which has satisfied our use in daily engineering development. However, there are a few methods that are not commonly used in development, but are very useful. Let's see what else is interesting. 1. Unusual query Previously, we ...