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preface I don't need to talk more about when the default Distinct method in C# can be de duplicated. The default implementation of de duplication for collection objects will no longer be satisfied. Therefore, we need to customize the implementation to solve this problem. Next, we will explain several common de duplication schemes in detail, wh ...

[external chain picture transfer failed. The source station may have anti-theft chain mechanism. It is recommended to save the picture and upload it directly (img-g36rsinr-1620689701971)( https://ducafecat.tech/2021/05/11/translation/how-to-get-unique-device-details-in-flutter/2021-05-11-06-16-24.png )] Old iron remember to forward, brother ol ...

Linux operating system learning 1, Linux system Linux system startup process Kernel boot: When the computer is powered on, the first is BIOS power on self-test, which starts according to the boot device (usually hard disk) set in BIOS. After the operating system takes over the hardware, first read the kernel file in the / boot director ...

Article source ｜ MS08067 Web vulnerability mining class No. 3Author: Cream (Lecturer of web vulnerability mining class)Many people have the habit of collecting the articles they see or forwarding them to their circle of friends in the process of learning.Collection is learning? Forwarding is learning?Of course, there are still many small partn ...

I'm Xiaoyu. Today is February 10, 2022. When I used python to play minesweeping games before, I found that I was always uncertain about the relationship between part size and font. Therefore, I specially wrote a BLOG about the size of labels and buttons in Tkinter at that time. After minesweeping, I had time to look back and find that many of ...

This article records the whole back-end development process of the project MybatisPlus code generator A separate Maven module was used in this project <dependencies> <!--web rely on--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot- ...

SDN course design, using Ryu to control, gnawing on the source code is really tired Github source code here Project background At present, smart cities are developing more and more, but with the application of various network devices and sensors, the network burden of cities is also increasing. If data analysis and other operations are done ...

1: Background 1. Tell a story A few days ago, a friend jia wx complained that his program always had an inexplicable high cpu during the peak period. How to analyze it for help? After communicating with this friend, it is said that this problem has plagued them for several years 😂， We also invited Microsoft engineers to solve the prob ...

Python OpenCv realizes real-time face recognition and face ranging prepare Before the development of facial ranging, first install four libraries in your Python, namely cvzone library, mediapipe library, tensorflow library and tensorflow GPU library. It is faster to install cvzone library and mediapipe library. You can install them quickly by ...

1, Heap and related operations Heap structure is a complete binary tree structure implemented by array size refers to the number of nodes I position, left child 2i+1, right child 2i+2, parent node (i-1)/2 rounded downIn a complete binary tree, if the maximum value of each subtree is at the top, it is a large root heapIn a complete binary t ...