Programming VIP

Brief description of three communication models: (1) Polling: The client sends requests to the server periodically and continuously at high frequency: Client request - server response - disconnect. The number of requests QPS is relatively frequent, and the configuration requirements of client and server are relatively high (2) Long polling: Th ...

1. Bubble sorting Bubble sorting principle: 1) Compare two adjacent elements. If the preceding element is larger than the following element, exchange the two numbers. After the first traversal, the maximum number will be placed at the last position of the array, that is, array[length - 1]. 2) The last element is skipped during the second trav ...

1, Introduction 1 Overview BP (Back Propagation) neural network was proposed by the scientific research group headed by Rumelhart and McCelland in 1986. See their paper learning representations by Back Propagation errors published in Nature. BP neural network is a multilayer feedforward network trained by error back propagation algorithm. It ...

1, Handling Linux emergency response is divided into four steps: 1. Phenomenon identification 2. Clear virus 3. Closed loop bottom 4. System reinforcement 1. Recognition phenomenon Through the system operation status and security equipment alarm, find the abnormal phenomena of the host and confirm the suspicious behavior of the virus. Whethe ...

1. Introduction to MVC MVC is a software design specification, which is the abbreviation of Model, View and Controller MVC is a common architecture pattern. Its purpose is to decouple! Model: the data model provides the data to be displayed on the page, also known as the business logic layer. The model layer is a broad overview. The model l ...

Agile development of microservices is not simpleThere are thousands of sets of safe environment, and the little brothers of Dabai development are laughingMicroservices bring us the characteristics of agile development. Based on the convenience of agile development, we can develop multiple iterations / features in parallel at the same time. Howe ...

Introduction to MPAndroidChart - bit by bit of BarChart's parallel histogram. MPAndroidChart_ About the line chart MPAndroidChart_ The pie chart thing MPAndroidChart_ Dynamic histogram MPAndroidChart_ About the horizontal bar chart MPAndroidChart_ Parallel bar chart, and how to click to hide unwanted items. MPAndroidChart_ Radar chart an ...

References: What is the difference between deep cloning and shallow cloning? How are they realized catalogue 1, Introduction to deep cloning and shallow cloning 1. Overview 2. Implementation of copy function 2, Implementation of deep cloning 1. Clone all objects 2. Deep cloning is realized by construction method 3. Deep cloning throu ...

1. Load external profile 1.1 Input config filebeat.config.inputs: enabled: true path: inputs.d/*.yml inputs. Example of configuration file in D Directory: - type: log paths: - /var/log/mysql.log scan_frequency: 10s - type: log paths: - /var/log/apache.log scan_frequency: 5s 1.2 Module config filebeat.config.modu ...

1. Single case mode elements Ensure that there is only one instance in a class and provide a global access point a.Private construction method b.Private static references point to their own instances c.Public static method with its own instance as return value 2. Hungry Han style single example public class Hungry { //Priv ...