Programmer Group

In the world of fluent, everything is Widget, image, text, layout model and so on. Everything is Widget In the fluent, try to put the widget in the MaterialApp. It encapsulates some required widgets. MaterialApp is generally used as the top-level widget, while Scaffold is set inside MaterialApp, because Scaffold provides the basic implementati ...

The first is a two-tier network, using the numpy version and the python version In fact, if you compare carefully, the difference is not big. The amount of code is similar. Because there is no automatic gradient calculation using pytorch. numpy version # -*- coding: utf-8 -*- import numpy as np # N is batch size; ...

  1. Open the project file darknet.sln of Darknet with VS   2. Find detector.c for modification 1) add header file #include <sys/stat.h> #include<stdio.h> #include<time.h> #include<sys/types.h> 2) add GetFilename function char *GetFilename(char *p) { static char name[20] = { "" }; char *q ...

The experiment needs five virtual machines, all of which are centos7 Client Router lvs server 172.22.144.188 1 interface 172.22.144.17 2 interface 192.168.49.5 172.22.144.17 192.168.49.5 rs1 server rs2 server 192.168.49.3 192.168.49.4 **Client configuration** vim /etc/sysconfig/nerwork-scripts/ifcfg-ens33 DEVICE=ens33 NAME=ens33 ...

Preface Why summarize the use of generics? How does generics represent value in a project? Don't talk about it. Summarize it. From practice to theory, finally return to generic nature. 1. What is generics? Why generics? Definition: Generics: the "broad data type", any data type. Effect: Generics can solve the security problem of data ...

First of all, we need to install the docker environment. This is relatively simple. Take centos7 as an example. docker needs kernel version 3.10 + to install on centos7. You can check the kernel version number through uname-r. if the version does not match, please consult the data for replacement. When you are ready, use the following command t ...

Preface In our daily work, the Linux server operating system that we often use, whether it is to view the information of network devices, manage network interfaces, download files, debug network problems or view network statistics, can be completed by commands under the terminal. ifconfig / ip a The command ifconfig is similar to ip a, which is ...

boa transplantation based on am335 needs five steps in total. Here are the detailed steps. You can learn from those who are unfamiliar with this knowledge. 1. Prepare development environment: (1)VMware 10.0 (2)Ubuntu 14.04 64bit (3) Sail335 development board (4) cross compiler: gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux 2. source code: ( ...

The server gets the read event, and the network module starts to read the message public final class NioEventLoop extends SingleThreadEventLoop // Also check for readOps of 0 to workaround possible JDK bug which may otherwise lead // to a spin loop if ((readyOps & (SelectionKey.OP_READ | SelectionKey.OP_ACCEPT)) ! ...

Task: you need to define services in nagios to detect the state of three DC S (1. Host state, 2. Consumer cluster state, 3.nomad cluster state). As long as one of the service states fails, trigger nagios eventhandler to change the link file of dns server, as shown in the figure above. Script: server address in script is different from actual ...