100 sets of grade II C operation questions in the national computer grade examination question bank (the 40th set)
Set 40:
A one-way linked list with head nodes has been established in the given program, and each node in the linked list is linked in order according to the data in the node data field. The function of fun is to put the value of formal parameter x into a new node and insert it into the linked list. After insertion, the value of each node's da ...
Added by legohead6 on Fri, 04 Mar 2022 00:49:20 +0200
ds18b20 temperature acquisition
Program design of temperature value display of DS18B20
I Characteristics of DS1820 single line digital thermometer
• unique single line interface requires only one port pin for communication • simple multipoint distribution applications • no external components required • power supply via data line • zero standby powe ...
Added by ev5unleash on Fri, 04 Mar 2022 00:47:51 +0200
The Jetpack Navigation toggle causes redrawing
1. Phenomenon
Use Navigation to jump between fragments. When switching with the bottom Tab effect, fragments will refresh every time. This effect is certainly not what you want, so it needs to be solved.
2. Cause
Cause of the problem: when the Navigation group jumps to another Fragment, the Navigation () method uses the ft.replace() method i ...
Added by Ark3typ3 on Fri, 04 Mar 2022 00:37:58 +0200
DETR:End-to-End Object Detection with Transformers
Features: self attention layers, end-to-end set predictions, bipartite matching loss The DETR model has two important parts: 1) A set prediction loss that ensures a unique match between the real value and the predicted value. 2) An architecture that can predict (one-time) target sets and model their relationships. 3) Due to the addition of self ...
Added by hbradshaw on Fri, 04 Mar 2022 00:37:15 +0200
The needle doesn't poke! This lightweight crawler framework is on fire
1. Preface
As we all know, Python's most popular crawler framework is Scrapy, which is mainly used to crawl website structural data
Today, we recommend a simpler, lightweight and powerful crawler framework: feapder
Project address:
https://github.com/Boris-code/feapder
2. Introduction and installation
Similar to Scrapy, feapder supports l ...
Added by nickiehow on Fri, 04 Mar 2022 00:23:05 +0200
Encapsulating ajax requests
Encapsulation method (Promise encapsulates ajax)
Here, we use Promise of ES6 to encapsulate an ajax request. We can do some public operations, such as intercepting token and processing login verification
let request = ({type, url, data, headers, dataType, params, contentType, isBody, async}) => {//ES6 syntax
let requestObj = {
...
Added by mike_revolution on Fri, 04 Mar 2022 00:21:36 +0200
Use Agora SDK to develop React Native video call App
In the application of React Native, it is very complicated to add video call function from scratch. To ensure low latency and load balancing, we should also pay attention to managing user event status, which is very cumbersome. In addition, cross platform compatibility must be ensured.
Of course, there is a simple way to do this. In this tutor ...
Added by bgoulette612 on Fri, 04 Mar 2022 00:17:28 +0200
Use of HTML-CSS paragraph styles
Text decoration: text decoration
Mode: underline, strikethrough, underline, do not add any decoration Writing method: text decoration: underline | line through | overline | none Note: multiple can be added, separated by spaces: text decoration: underline line through outline;
<head>
<meta charset="utf-8">
<title></ti ...
Added by blueguitar on Fri, 04 Mar 2022 00:08:48 +0200
Binary tree sequence and deserialization summary python C++
preface
In the actual interview, we will not define the node class of the binary tree for you like Li Kou. We need to convert the input data into the data structure required by the topic. The main corresponding knowledge points are the serialization and deserialization of the binary tree, which can be used for reference Force buckle 297 ...
Added by virgil on Fri, 04 Mar 2022 00:00:45 +0200
Compiling proto and related usage of proto
Compiling proto and related usage of proto
1. Compiling proto
Reinstall the protoc ol for reference https://blog.csdn.net/u013498583/article/details/74231058
View the current protocol version: protocol -- version
Check the installation location of protocol: which protoc ol
Find the file related to the protocol: sudo find / - name protocol ...
Added by Shaped on Thu, 03 Mar 2022 23:57:19 +0200