Reflection of Go language foundation

Reflection of 09Go language foundation Internal mechanism of variables Variables in Go language are divided into two parts: Type information: predefined meta information. Value information: it can change dynamically during program operation. Reflection introduction Reflection refers to the ability to access and modify the program itself durin ...

Posted by sd9sd on Sat, 06 Nov 2021 19:39:52 -0700

How to send alarm notification to wechat in Python?

Recently, I became Alibaba cloud's Promotion Ambassador and brought 200 readers together to receive Alibaba cloud's servers for free. Everyone said "really fragrant". PS: if you want to participate in receiving the free server, you can add me v: Hello WBM, and I'll send you the operation process. In fact, there are still many proble ...

Posted by Bifter on Sat, 06 Nov 2021 19:21:33 -0700

Vue -- options -- use / tutorial / instance

Original website: brief introduction explain         This article illustrates the use of Vue's options with examples. Includes: combination options and other options.         The combination options will be introduced: mixin, provide/inject; Other options are described: inheritAttrs. Official websi ...

Posted by ceci on Sat, 06 Nov 2021 19:10:30 -0700

Text processor sed

Sed is a line processor. Whenever a line is processed, the currently processed line is stored in a temporary buffer, called Pattern Space. Then, the contents of the buffer are processed with the SED command. After the processing is completed, the contents of the buffer are sent to the screen. Therefore, the execution speed is also very fast. fo ...

Posted by thoand on Sat, 06 Nov 2021 18:56:29 -0700

[python-NOJ-44] [001] - Season 5 [category] - circle of friends (and search Collection)

Title Description:   Resolution: This problem is abstracted as finding the number of connected subgraphs of a graph. DFS traversal can be used to calculate the connectivity; Or use and query set. This question uses and looks up the set. (1) Initialization: initialize the parent node of each node as itself. At this time, n nodes hav ...

Posted by kelseyirene on Sat, 06 Nov 2021 18:45:38 -0700

Summary of basic algorithms

Bit operation Pilot brother Title Link Problem solving ideas: Each switch of the chessboard has two states: on or off, so the total number of States is 2 16 2^{16} 216. The range of int is not ...

Posted by thallium6 on Sat, 06 Nov 2021 18:01:47 -0700

react from scratch

1, react component brief introduction Component classification: Basic components: basic tags such as input and button, as well as general UI components encapsulated by antd Business component: business abstraction UI composed of basic components. For example, the drop-down box of company department information Block component: a UI block c ...

Posted by hessodreamy on Sat, 06 Nov 2021 17:27:53 -0700

Teach you to do FSM state machine in Unity

        The last article talked about the implementation of the general state machine (at the end of the article). This time, I will talk about how to use it in practice. This time, first do a simple state machine to control Animator.         Since the models I use for animat ...

Posted by allspiritseve on Sat, 06 Nov 2021 17:10:36 -0700

stm32 interrupt and serial DMA communication under stm32cubemx

catalogue 1, External interrupt to realize the flashing and extinguishing of LED 1. Create project 2. Compiling and writing programs 3. Burning 4. Experimental results 2, Serial port interrupt to realize serial port communication 1. Create project 2. Redirect printf and scanf 3. Operation results 4.UART receiving interrupt 3, Serial ...

Posted by aussieguy on Sat, 06 Nov 2021 16:55:55 -0700

SpringBoot+Vue+HIKVSION enables camera multi selection and multi window preview (plug-in version)

scene If you follow the instructions of the front-end and back-end separate versions to build a local environment and run the project: If you follow the front-end and back-end separation version, you can teach you how to build a local environment and run the project_ BADAO_LIUMANG_QIZHI blog - CSDN blog SpringBoot+Vue+Openlayers can add and ...

Posted by suspect on Sat, 06 Nov 2021 16:53:55 -0700