Programmer Think

Video analysis related to linux server development: linux kernel, implementation of process scheduler, fully fair scheduler CFS Analysis of 10 classic interview questions, how does the technical direction determine the career direction c/c++ linux server development free learning address: Senior architect of c/c++ linux background server pre ...

Title address: https://www.acwing.com/problem/content/2279/ Farmer John is making a new milking machine and hopes to keep it strictly confidential. He hid the milking machine deep in the farm, enabling him to carry out the task without being found. In the process of machine manufacturing, he has to carry out a total between the cowshed and th ...

1.p:last-child Resolution: [1] The: last child selector is used to match the last child element in the parent element [2] P: last child is equivalent to P: nth last child (1) 2. Hidden classes based on breakpoints Parsing: import 'element UI / lib / theme talk / display css’; [1] Hidden xs only: hidden when viewport is at xs size [2] Hid ...

1. Meaning: No matter what address the browser visits, the real page visited is always index HTML and vue render different components according to different addresses. Because the real page is unique, the page switching seen by the user is actually the switching of components. This kind of application is called single page application   2. ...

Everyone is familiar with the notification bar. It should be regarded as the basic functional component of the device. Push messages, task reminders, alarm clock reminders, etc. need to be displayed to users through the notification bar of the device. Therefore, an eye-catching and friendly notification is very important, but in this chaotic en ...

catalogue preparation in advance Create user Download the installation package of ElasticSeach. This case uses version 6.2.4 Modify the configuration item JVM options Modify the configuration item elasticsearch yml Resolve error reporting Start Elasticsearch 1.3.1. Error 1: kernel too low 1.3.2. Error 2: insufficient file permissions ...

One hundred blog Analysis ｜ this article is: (message mapping) | analyze the process communication mechanism of liteipc (Part 2) Related articles of process communication are: v26.08 Hongmeng kernel source code analysis (spin lock) | be a good comrade of chastity archway v27.05 Hongmeng kernel source code analysis (mutex lock) | it's ...

1, What does array CURD mean Array is a container for storing data. The method of operating data: CRUD -- add, delete, modify and query C: Create data increase R: Retrieve query data U: Update modify data D: Delete delete data 1. Add data: data can be added directly at the specified position through index / number / dry label 2. Query da ...

1. First understand the difference between compilation and installation and yum installation. Install centos virtual machine under windows, which was written before. Portal~~ Compile and install: It can be installed on demand. It can be installed in whatever directory you want.Parameters can be setYou can install the version you wan ...

(pay attention to whether I can accept the update push) I Knowledge supplement 1.1. (understand) this in methods 1.1.1. out of commission Arrow function If we want to use data to return the data in the object in methods, this must have a value, and the data in the data return object should be available through this. ...