Programmer Group

From https://www.jianshu.com/p/8bb7c11a2112 This time, I will explain the basic points of Bluetooth 4.0 and record it as my memo. First, popularize Bluetooth 4.0 based on Gatt protocol. Under Bluetooth 4.0, traditional Bluetooth is implemented in socket mode. So Bluetooth over 4.0 has the advantages of faster transmission ...

Today, we will share with you how to download and install Pycharm locally. The specific tutorials are as follows: 1. Go to Pycharm's official website first, or enter the web address directly: http://www.jetbrains.com/pycharm/download/#section=windows , download the PyCharm installation package, select it according to your computer's operating ...

background The client sends a request to the server and informs the user by short message. This is a very common way of pushing messages. This time, we need to do the same. The mobile short message platform we choose is 10086 cloud MAS platform, and the interface is the simplest HTTP interface. programme SMS platform data interfa ...

Article directory 8.1 Why Physical Networks Can't Meet the Needs of Cloud Computing 8.1.1 Large Capacity MAC and ARP Table Items 8.1.2 4K VLAN TRUNK 8.1.34 K VLAN upper bound problem 8.1.4 Network Dependency in Virtual Machine Migration 8.2 neutron Network Virtualization Capability 8.3 neutron provides network types 8.4 Reg ...

As we saw in the previous section, when many people collaborate on the same branch, conflicts can easily arise. Even if there is no conflict, the children's shoes of post-push have to pull first, merge locally, and then push succeeds. After each merge and push, the branch becomes as follows: $ git log --graph --pretty=oneline ...

What did you say? JOIN operator is the core operator of data processing. We introduced UnBounded's two-stream JOIN in Apache Flink Talk Series (09) - JOIN Operator earlier. We introduced single-stream and UDTF JOIN operation in Apache Flink Talk Series (10) - JOIN LATERAL. We also introduced single-stream and version table JOI ...

Assignment 1: Programming and designing the color of movie posters Assignment 1: Designing color visualization works for movie posters. Imitate the color of movie posters on page 43 of Chapter IV of PPT for visualization since 1914. Design and implement the color visualization works of domestic movie posters from 2008 to 2018 ...

Recently, I took over other people's code in my project to improve it. One of them is to fix the bug that can't get the MAC address. I looked closely at the code and found that I need to use Activex control. The last colleague wrote <object></object> in the index.html file while writing, and the js code to get the mac address was al ...

I. On cookie encryption Cookie encryption is the value cookie plaintext information which is not available to client users, and it is an important part of data security. Generally, we can encrypt cookie information when we save cookies, or set the sign attribute of option object to true in res.cookie. 2. Encryption of cookie s by ...

aiblog3.jpg This time, we will talk about simple index and matrix traversal. Attached herewith Video link If you want to know more about it, you can have a look. Introduction of numpy third party Library First, we introduce numpy as a third-party library. If a classmate does not install numpy, he can install it from the com ...