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scene Use Openlayers in Vue to load TileWMS published by Geoserver: https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/115916949 After TileWMS is loaded and the map can be displayed successfully, if you want to click on the map, you can get the coordinate information of the point.   Before that, you need to understand the shp file ...

preface Recently, the egg pain has been trying to discard the official account service provided by WeChat, and want to move public service to cloud server. However, it has found awful interface permissions. 1, Basic configuration It mainly adds url and token. Here, the url must start with http: / / or https: / /, and supports port 80 and por ...

Decrypt wechat applet login authorization to obtain mobile phone number according to Official documents Wechat applet process: According to the interpretation of the official encryption data decryption algorithm: 1. The algorithm used for symmetric decryption is AES-128-CBC, and the data is PKCS#7 filled. 2. The target ciphertext of symme ...

Learning objectives of this lecture Understand the principles of structured programmingProcedures for mastering sequential structureMaster the use of single branch structure 1, Structured programming (1) Basic principles of structure 1. Top down When designing the program, we should first consider the overall situation and then conside ...

Third party authorization login of OAUTH hello, I'm Nezha, the Little Devil boy. Welcome to click and pay attention. There are updates, which will be presented to you for the first time Fat sir: Little Devil boy, I received a request today. I expect us to make a third-party login function. Users can log in to our web through third-party a ...

Dynamic array implementation 1. Class structure The construction of all classes needs to be considered from two aspects: properties and methods. attribute To construct a dynamic array, we first need an array with uncertain size, and then determine the size of the array when calling its constructor. Secondly, some parameters about the array: ...

preface If a worker wants to do well, he must sharpen his tools first! In modern IT, every Android programmer needs the best tools to improve their skills and efficiency. In the brutal competitive industry of Android application development, only good programmers can survive. You need to show your customers the best technology and capabilities ...

Recently, I was studying Turing textbook by myself< Python Basic course of machine learning ", take some notes in the form of blog on csdn. We may have many purposes in using unsupervised learning for data transformation. The most common purpose is to visualize, compress data, and find a more informative data representation for further ...

Source: Yixian 01 PrefaceMany people are committed to writing Python code more python, which is more standard and easy to read, and the general Python code is also more efficient in execution. Today, let's introduce the python system library itertools.02 itertools LibraryIterator (generator) is a very common and easy-to-use data structure in Py ...

Network programming, WebSocket Foundation summary: Network globalization connects the world through the network. Connect through domain name (ip address) and port number. Real time interaction: when making a call, the technology used is TCP connection. Transmit information: send information. UDP connection is used. Computer network: ...