Minimalist tutorial on basic knowledge of field programmer

Bowen catalog Write before text FIFO in GA/ASIC Design of synchronous FIFO Reference material Make a friend Write before Personal Blog Home Page Note: Learn to communicate! text FIFO in GA/ASIC How FIFO buffers are used to transfer data and across clock domains The abbreviation FIFO s ...

Posted by moty66 on Sun, 07 Jun 2020 18:50:08 -0700

Database security and transaction operation

Database security and transaction operation Article catalog Database security and transaction operation 1, Purpose and requirements 2, Experiment content 1. Design the security mechanism so that the user Wang Ming can only find the staff of the financial department 2 design a role_Emp ", this ...

Posted by bbbaldie on Sun, 07 Jun 2020 03:19:54 -0700

Building vue mobile project from scratch to online

Let's see a wave of renderings   Initialize project 1. Installed on node.js Using the following command npm install --g vue-cli 2. Under the directory where the project will be built Vue init webpack myproject (project directory name) All the way back here In the middle, you can select ESLint to check the code style of the project. ...

Posted by zuhalter223 on Sun, 07 Jun 2020 01:05:45 -0700

cmake basic introduction (1)

cmake basic introduction (1) Official help documents CMake is a cross platform make. CMakeLists.txt The brief introduction is as follows: # Auto CMakeLists.txt: frame with cppunit use for lintcode/leetcode # minimum cmake version cmake_minimum_required(VERSION 3.7) # cmake minimum version ...

Posted by Cyberspace on Sun, 07 Jun 2020 00:39:06 -0700

STM32 uses DHT11 and outputs the results to a seven-segment digital tube (proteus simulation)

STM32 uses DHT11 and outputs the results to a seven-segment digital tube (proteus simulation) Circuit diagram Step 1: Test environment after DHT11 is powered on (wait for 1S after DHT11 is powered on to get over the unstable state during which no instructions can be sent) Temperature and humidity dat ...

Posted by pikymx on Sat, 06 Jun 2020 19:37:09 -0700

Java implements 23 design patterns: Adapter Pattern

Classification of 23 design patterns 1, Overview The Adapter Pattern serves as a bridge between two incompatible interfaces. This type of design pattern belongs to structural pattern, which combines the functions of two independent interfaces. This pattern involves a single class that is responsib ...

Posted by wiley on Thu, 04 Jun 2020 20:00:48 -0700

IOS startup map and open screen advertising map, similar to Netease

Boot map is an essential part in the development of iOS. Many app s will have a customized open screen ad map after the boot map. Click the ad map to jump to the corresponding page of the ad map. Today, I'd like to share with you how to add this ad map and click the jump of ad map. This ad map is imp ...

Posted by gutogouveia on Thu, 04 Jun 2020 09:38:43 -0700

Reduce the use of if

Recently, a batch of code has been maintained, including the use of a pile of if... With 8 or 9 layers of nesting in many cases, which is extremely painful. Therefore, search for some ways to reduce if...else to improve the code and write a simple summary.     The first: Before optimization if (measuredValue > 8) return 5 * measuredVal ...

Posted by realtek on Thu, 04 Jun 2020 08:38:47 -0700

Sword finger offer_ Programming questions_ java version (21-27)

Article catalog Push and pop sequence of stack Print binary tree from top to bottom Post order traversal sequence of binary search tree Path with a certain value in a binary tree Replication of complex linked list Binary search tree and double linked list Arrangement of strings Push and pop sequ ...

Posted by Delaran on Thu, 04 Jun 2020 06:26:48 -0700

Oracle learning - PL/SQL assignment, type, exception, if, loop

summary: PL/SQL(Procedural Language/SQL) is a special application development language of Oracle database. It is a programming language formed after the process expansion of the standard SQL language. PL/SQL Oracle extends SQL procedure. PL/SQL database programming Benefits: simple, efficient, flexible and practical 1. Grammar Basic syntax: ...

Posted by cheshil on Wed, 03 Jun 2020 03:08:17 -0700