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Important things are at the top. Please look carefully: This paper aims to learn and exchange crawler technology, especially JS reverse technology. We should focus on learning the ideas and process. Please don't imitate the website exemplified in the article. If you want to crawl, please crawl no more than 3 pages, otherwise you will bear t ...

When using the open source camunda process engine for secondary development, the gateway must be contacted. Camunda's Modeler tool provides four types of gateways: Exclusive Gateway, Parallel Gateway, Inclusive Gateway and event based gateway. Each gateway has its own unique functions. This article first introduces Exclusive Gateway. Ex ...

DDS program implementation and operation [picture] This paper records the whole process of OpenDDS environment construction, idl customization, code generation and code writing under Windows10 environment. 1, Environment construction 1. For details, please refer to the Development Notes: 1 Opendds environment construction - Windows 10 note Af ...

Novice on the road, record their understanding. In C + +, there are two ways for functions to pass values: Value Passing and reference passing. In Java, only values are passed, even if the object passed is of reference type (such as String). The so-called value transfer refers to transferring a copy of the argument to the function when calling ...

Gaode map API official website: Gaode open platform | Gaode map API . Since the blogger is developed based on the front-end Vue framework, the map JavaScript API * * * * is introduced in combination with Vue. 1, Case effect 2, Development preparation It should be noted that if you want to use JS API, you must register an account and ...

Type conversion in C language In C language, if the types of the left and right sides of the assignment operator are different, or the shape participating argument types do not match, or the return value type is inconsistent with the received return value type, type conversion is required. There are two forms of type conversion in C langua ...

0. All my software download directories are in the software directory mkdir -p /usr/local/fastdfs cd /usr/local/fastdfs/ 1. Install gcc on Linux machine yum -y install cmake make gcc-c++ 1, Install core library 1.1 installation version #Official website https://github.com/happyfish100 fastdfs-6.06.tar.gz libfastcommon-1.0.43.tar.gz fa ...

?? Author home page: Li Yangyong? ?? Introduction: high quality creator in Java field Java Li Yangyong, author's resume template, learning materials, interview question bank, technical assistance [pay attention to me and give it to you] ?? Welcome to like?? Collect messages?? Video demonstration: get the contact information of the ...

[HTML of reconstructing front-end knowledge system] changes brought by HTML5 to web page audio introduction I believe everyone is familiar with music playback, but long before the previous music playback, your browser will ask you whether to download the flash plug-in. Now, however, it is estimated that some young developers don't need to kno ...

In recent work, you need to optimize the previous web side code editor. As a back-end developer, although I'm not professional, I can only bite the bullet. After consulting a lot of materials, I still optimized some contents. Let's share them here. If there is something wrong, please forgive me. After all, it's very tired to play with pure hand ...