[Valentine's day limit] dog food artifact in the circle of friends_ copy

[exclusive for Valentine's day] dog food is sprinkled in the circle of friends, which is a high force artifact Reprinted from AI Studio Title item link https://aistudio.baidu.com/aistudio/projectdetail/3472196 The annual Valentine's Day is coming. Are all those who have objects worried about how to make a high-profile circle of friends. As a ...

Posted by Neoraven456 on Sun, 20 Feb 2022 10:40:10 +0100

Exception handling in Python

The art and Tao of Python Programming: an introduction to Python language Link to the video course "the art and Tao of Python Programming: an introduction to Python language": https://edu.csdn.net/course/detail/27845 exception handling Errors detected during execution are called exceptions. Exceptions are events that can modify the ...

Posted by anhedonia on Sun, 20 Feb 2022 10:33:26 +0100

UDP, TCP, Lambda expression, interface composition update, method reference

UDP communication principle: UDP protocol is an unreliable network protocol. It has a Socket object at both ends of the communication, but these two sockets are only the objects to send and receive data Both sides of communication based on UDP protocol have no so-called concept of client and server The datagram Socket class provided by Java i ...

Posted by mooler on Sun, 20 Feb 2022 10:31:58 +0100

JavaScript Object. Use of defineproperty() method

Object. Use of defineproperty() method Object. The defineproperty () method will directly define a new property on an object, or modify an existing property of an object and return the object. Object.defineProperty(obj, prop, descriptor) Parameters: obj: object to define attributeprop: the name or Symbol of the attribute to be defined or ...

Posted by toodi4 on Sun, 20 Feb 2022 10:25:17 +0100

Rule engine design

summary The so-called rule engine refers to the mechanism of if some condition match then trigger some thing. Condition is a series of expression s, such as when the equipment status is changed to offline (attribute), and someone passes through the gate (event); Trigger a series of actions, such as storing in the database and sending alarm inf ...

Posted by Nunners on Sun, 20 Feb 2022 10:19:12 +0100

Neural network case

Neural network case Learning objectives Able to use TF Keras get datasetConstruction of multilayer neural networkBe able to complete network training and evaluation The MNIST dataset using handwritten digits is shown in the figure above. The dataset contains 60000 samples for training and 10000 samples for testing. The image is a fixed ...

Posted by dabas on Sun, 20 Feb 2022 10:10:24 +0100

Drawing DEM with GEE gracefully

about Yesterday I read a high-quality Python topographic map blog. With emotion, I thought of the characteristics of GEE (Google earth engine) with many data sources, fast calculation speed and many calculation operators. Using GEE should not be inferior to python. Production process There are three steps to draw DEM with GEE, the most impor ...

Posted by malcolmboston on Sun, 20 Feb 2022 10:03:47 +0100

[OC learning notes] learn about GCD threads

1, Learn some basic knowledge (1) Queue: Queue queues are divided into the following types: 1. Global queue: dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0); 2. Main queue: dispatch_get_main_queue() 3. User created serial queue: dispatch_queue_create("com.yuna.com", DISPATCH_QUEUE_SERIAL/NULL); 4. User created parallel ...

Posted by Miichael on Sun, 20 Feb 2022 09:53:30 +0100

This is how goim achieves high concurrency

This chapter will explain the implementation principle of goim high concurrency from two aspects: Architecture and program design. framework Firstly, in terms of architecture, goim is divided into three layers: comet, logic and job. Comet belongs to the access layer and is very easy to expand. Multiple comet nodes can be directly opened. F ...

Posted by phpparty on Sun, 20 Feb 2022 09:51:43 +0100

23_ Implementation of mini Vue for vue3 source code learning

Implementation of mini Vue for Vue3 source code learning Implement Mini Vue Here we implement a concise version of the mini Vue framework, which includes three modules: Rendering system module;Responsive system module;Application entry module; 1, Implementation of rendering system Rendering system, this module mainly includes three functio ...

Posted by mogster on Sun, 20 Feb 2022 09:44:30 +0100