When using QtCreator to create Application program, it will automatically create * * *. UI file in the folder "build - * * * - Desktop"_ Qt_ ***-Generate UI in debug_ ***. h, * * *. UI can be adjusted through QtDesigner, and a c + + class with the same name will be created in the folder of * * *. UI. This brings us a lot of doubts. Ho ...
Posted on Sat, 30 May 2020 21:40:07 -0700 by andy1398
5.1 introduction to integer security: integers consist of natural numbers (0, 1, 2, 3,...) including 0 )And negative numbers of nonzero natural numbers (- 1, - 2, - 3 )Composition.
5.2 integer data type: integer type provides a model of a finite subset of integer mathematical sets. The value of an object of type integer is the mathematical val ...
Posted on Sat, 30 May 2020 19:10:07 -0700 by Stegs
We all know that it's very easy to collect a large number of design materials, but it's too expensive. Today, I'll take you to use Python crawler to crawl these materials and save them locally!
To capture the content of a website, we need to start from the following aspects:
1 - how to grab the next link of the website?
2 - whether the target r ...
Posted on Sat, 30 May 2020 07:38:42 -0700 by blogger3
Online Sudoku, this website has an answer
Use two-dimensional array to represent chessboard, 0 for null
First calculate the set of every empty possible value
The dfs search is carried out in turn. After a value is determined each time, the nine palaces and all vertical and horiz ...
Posted on Sat, 30 May 2020 07:09:26 -0700 by TGWSE_GY
Today, I'd like to take you to a quick understanding of the box model and go directly to the code:
<meta charset="utf-8" />
<meta name="keywords" content="key word,key word" />
<meta name="description" content="" ...
Posted on Thu, 28 May 2020 03:07:37 -0700 by kalivos
0 personal information
1 purpose of the experiment
Learn more about semaphores by programming.
2 experiment content
On the server, we use Vim to write a program: use semaphore to solve any classical PV problem, test the result, and explain the running result.
3. Experiment report
3.1 choosing phi ...
Posted on Thu, 28 May 2020 00:52:24 -0700 by gbuck
Note the opening of port tcp/udp
Install dependent packages before installing coturn and janus
Certificate and turnserver user password need to be matched
Prepare the underlying environment, including server environment, address, certificate, firewall configuration, etc.</br>
Environment Preparation </ ...
Posted on Wed, 27 May 2020 19:53:39 -0700 by radhoo
There are many concepts involved in future. Future can be used as a task with multiple strings, and then many tasks will be sent to the thread pool. When the thread is executing, it will block in the block_ The on () call waits for an event.
For example, the epoll event will drive the nearest Future::poll(), and then execute the next level of F ...
Posted on Wed, 27 May 2020 08:23:48 -0700 by darkke
P6Spy is an open source framework that can be used to intercept and modify data operation statements in applications. Through P6Spy, we can intercept SQL statements, which is equivalent to a recorder of SQL statements, so we can use it for relevant analysis, such as performance analysis.
P6SPY provides the following functi ...
Posted on Wed, 27 May 2020 07:33:48 -0700 by FeralReason
A broker is an instance of kafka, which is responsible for receiving, forwarding and storing messages. kafka cluster is composed of multiple brokers.
kafka's topic is a logical concept, which is to group and classify messages, so as to distinguish and process messages of different business logic. The index concepts in ...
Posted on Wed, 27 May 2020 04:56:38 -0700 by mustang