QA Official

Netty Getting Started to Proficient Courses | Internet of Things Video Course

https://qaofficial.com/post/2019/04/24/68722-netty-getting-started-to-proficient-courses-internet-of-things-video-course.html 2019-04-24
《Netty Introduction to Core Technologies of Internet of Things to Proficient Courses》 本课程由www.51education.net独家提供 课程来源于: http://www.xuetuwuyou.com/course/14 课程内容介绍: 一、课程用

PCA Understanding Ideas

https://qaofficial.com/post/2019/04/24/68763-pca-understanding-ideas.html 2019-04-24
PCA has a lot of information on the Internet. People may read what Daniel wrote on the Internet about principles. I am only writing a basic understanding here.Mainly refer to the great god of information, https://zhuanlan.zhihu.com/p/21580949 PCA is mainly to find the eigenvector corresponding to the eigenvalue with the largest covariance matrix of the data set, thus finding the directions with the largest variance of the data, achieving the effect of dimension reduction for the data, reducing a vector with n dimensions to d dimensions, where d < n.

ajax post Request Method

https://qaofficial.com/post/2019/04/24/68537-ajax-post-request-method.html 2019-04-24
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <script> function f1(){ var username=document.getElementById('username').value; //对传递的特殊的特殊符号进行编码处理 这步必须放到请求字符串之前 username=encodeURIComponent(username); //Change user name information into " request string" var info="name="+username+"&age=23"; //1.创建ajax对象 if(typeof ActiveXObject!="undefined") {

js native and ajax get and post methods and jsonp native writing

https://qaofficial.com/post/2019/04/24/68560-js-native-and-ajax-get-and-post-methods-and-jsonp-native-writing.html 2019-04-24
login.onclick = function(){var xhr = new XMLHttpRequest();xhr.open("get","http://localhost/ajax2/test2.php?username="+username.value+"&pwd="+pwd2.value,true);xhr.send();xhr.onreadystatechange = function(){if (xhr.readyState == 4) {if (xhr.status>=200 && xhr.status<300) {alert(xhr.responseText);};};} } ajax method btn.onclick = function(){ajax( "GET", "http://localhost/ajax2/my02.php", {xingming:xingming.value,pwd:pwd.value}, function(data){console.log(data);},function(errCode){console.log(errCode);}) post Method Pass Parameters It differs from a get method: 01 safety type.Post is safer.The speed of get is 0.3 order of magnitude faster.Post is of a larger order of magnitude. Specific Implementation: var xhr = new XMLHttpRequest();

tp5 how to judge the request method, tp5 request method summary judgment ajax submission

https://qaofficial.com/post/2019/04/24/68568-tp5-how-to-judge-the-request-method-tp5-request-method-summary-judgment-ajax-submission.html 2019-04-24
说明 代码 是否为 GET 请求 if (Request::instance()->isGet()) 是否为 POST 请求 if (Request::instance()->isPost()) 是否为 PUT 请求 if (Request::instance()->isPut()) 是否为 DELETE 请求 if (Request::instance()->isDelete()) 是否为 Ajax 请求 if (Request::instance()->isAjax()) 是否为 Pjax 请求 if (Request::instance()->isPjax()) 是否为手机访问 if (Request::instance()->isMobile()) 是否为 HEAD 请求 if (Request::instance()->isHead()) 是

upper_bound () and low_bound functions

https://qaofficial.com/post/2019/04/24/68629-upper_bound-and-low_bound-functions.html 2019-04-24
prerequisite: a non-descending sequence!!!!!! lower_bound () function uses: Its parameters are: 1. Address of an array element (or array name to represent the first address of the array, to represent the address of the element to be compared at the beginning of the array, not necessarily the first address, but only the " first" address to be compared), 2. The address of an array element (corresponding to the address of

yii2 ajax post submission problem

https://qaofficial.com/post/2019/04/24/68556-yii2-ajax-post-submission-problem.html 2019-04-24
The first solution is to turn off Csrf 1, partially closed: publicfunctioninit () { $ this-> enablecsrfvalidation = false;} 2, global shutdown: in the configuration file (main-local.php or web.php), set to " enablecsrfvalidation" = > false,//true to turn on csrf validation  The second solution is to add hidden fields to the form form;Name="_csrf " is the default configuration for the framework <input name="_csrf" type="hidden" id="_csrf" value="<?= Yii::$app->request->csrfToken ?

Add BN Layer to deeplabV2

https://qaofficial.com/post/2019/04/24/68620-add-bn-layer-to-deeplabv2.html 2019-04-24
Deeplabv2 Project The caffe version in this project is older, and there are many different writing styles that need to be changed greatly.、 The new version of caffe is called A and the deeplabV2 version is called B. 1. Add. cpp,.cu and. hpp files 2.修改caffe.proto,添加

BN layer of caffe for deep learning

https://qaofficial.com/post/2019/04/24/68634-bn-layer-of-caffe-for-deep-learning.html 2019-04-24
1. Introduction If googlenet is called the google inception v1, its Batch Normalization (http://arxiv.org/pdf/1502.03167v3.pdf) article is about BN-inception v1. It is not the essential content modification of the network itself, but to normalize the output of the conv layer so that the update of the next layer can be faster and more accurate. 2. Network Analysis caffe officials split the BN layer into two layers for experiments.

Change hyperlink request method from get request to post request

https://qaofficial.com/post/2019/04/24/68542-change-hyperlink-request-method-from-get-request-to-post-request.html 2019-04-24
There are four RequestMaping requests in SpringMVC: get, post, put and delete. However, the browser itself can only accept requests in get and post. If the request is based on hyperlink, the hyperlink defaults to get.However, if the hyperlink request method can be changed from get method to post method, it will be very good. With post, there will be put and delete request methods. Here is a record of