CentOS7重启网络服务service network restart失败_course

虚拟机安装的是CentOS-7-x86_64-Minimal-1810.iso 使用root登录后运行ip addr命令，显示以下 service network restart显示失败 输入命令后

重启网络服务失败，请教一下。_course

service network restart 然后提示这个错误，百度了一下也没什么结果。。。 请教一下各位大侠指点一下。

第三方登录twitter认证失败_course

没整过第三方登录开发，好难啊 如果有了开发者账号,我怎么去用java实现获取twitter好友的功能呢？

如何获取Twitter粉丝列表（或任何其他Twitter查询）_course

<div class="post-text" itemprop="text"> <p>My question is similar to one here - <a href="https://stackoverflow.com/questions/17097357/twitter-search-by-hashtag-example-api-v1-1/53990748#53990748">Twitter search by hashtag example API v1.1</a>. I've followed the API and advice as best as I can but I'm still a bit stuck on this one and wondering if someone can spot what i've done wrong:</p> <pre><code>&lt;?php require_once('twitter-api-php-master/TwitterAPIExchange.php'); $consumer_key = 'xxxx'; $consumer_secret = 'xxxx'; $oauth_access_token = 'xxxx'; $oauth_access_token_secret = 'xxxx'; // Your specific requirements $url = 'https://api.twitter.com/1.1/search/tweets.json'; $requestMethod = 'GET'; $getfield = '?q=#baseball&amp;result_type=recent'; // Perform the request $twitter = new TwitterAPIExchange($settings); echo $twitter-&gt;setGetfield($getfield) -&gt;buildOauth($url, $requestMethod) -&gt;performRequest(); ?&gt; </code></pre> <p>It doesn't seem to be getting past -&gt;buildOauth?? and isn't sending any messages to the screen. Can you see where I'm falling down?</p> </div>

Facebook发布错误：需要其中一个参数_course

<div class="post-text" itemprop="text"> <p>Im having trouble to POST my persistent menu to my facebook page, this is the php I use to post, it worked in the past, but now it returns this error:</p> <blockquote> <p>Unsuccesfull POST/GET. (#100) Requires one of the params: get_started,persistent_menu,target_audience,whitelisted_domains,greeting,account_linking_url,payment_settings,home_url</p> </blockquote> <p>here the code: </p> <pre><code>&lt;?php //$page_access_token = AQUIPRESTAMOS_PAGE_ACCESS_TOKEN; $page_access_token = BOTGENES_PAGE_ACCESS_TOKEN; $url = 'https://graph.facebook.com/v3.2/me/messenger_profile?access_token='. $page_access_token; $persistent_menu = array( "persistent_menu"=&gt; [ '{ "locale":"default", "composer_input_disabled": false, "call_to_actions":[ { "title":"INFORMACIÓN GENERAL", "type":"nested", "call_to_actions":[ { "title":"Información sobre préstamos", "type":"postback", "payload":"Quiero información sobre los prestamos" }, { "title":"Requisitos", "type":"postback", "payload":"¿Cuáles son los requisitos?" }, { "title":"Jubilados y Pensionados", "type":"postback", "payload":"¿Dan préstamos a Jubilados y Pensionados?" }, { "title":"Relación de dependencia", "type":"postback", "payload":"¿Dan créditos a empleados privados?" }, { "title":"Más", "type":"nested", "call_to_actions":[ { "title":"Monotributistas", "type":"postback", "payload":"¿Dan préstamos a Monotributistas?" }, { "title":"Estoy en el Veraz", "type":"postback", "payload":"¿Dan préstamos aún estando en el Veraz?" }, { "title":"Estoy en el Codeme", "type":"postback", "payload":"¿Da préstamos aún estando en el Codeme?" }, { "title":"Extranjeros sin DNI Argentino", "type":"postback", "payload":"¿Dan préstamos a personas extranjeras sin DNI Argentino?" } ] } ] }, { "title":"FUNCIONAMIENTO", "type":"nested", "call_to_actions":[ { "title":"¿Cómo funciona?", "type":"postback", "payload":"¿Cómo funciona?" }, { "title":"¿Cobran anticipo?", "type":"postback", "payload":"¿Se cobra algún anticipo?" }, { "title":"Planes de financiación", "type":"postback", "payload":"¿Cuáles son los planes de financiación?" }, ] }, { "title":"AYUDA", "type":"nested", "call_to_actions":[ { "title":"¿Qué es el CBU?", "type":"postback", "payload":"¿Qué es el CBU?" }, { "title":"Sin servicio a mi nombre", "type":"postback", "payload":"No tengo un servicio a mi nombre" }, { "title":"Estado de mi solicitud", "type":"postback", "payload":"Quiero saber el estado de mi solicitud" }, { "title":"Contacto", "type":"nested", "call_to_actions":[ { "title":"Información de contacto", "type":"postback", "payload":"¿Cómo puedo contactarme con ustedes?" }, { "title":"Horario de atención", "type":"postback", "payload":"¿Cuál es el horario de atención?" }, { "title":"Ubicación las oficinas", "type":"postback", "payload":"¿Dónde se encuentran las oficinas?" }, ] } ] } ] }' ] ); $data = $persistent_menu; $get_params = '&amp;fields=persistent_menu'; //$url .= $get_params; $response = do_curl($url,'POST',$data); //$response = do_curl($url,'GET'); $decoded_response = json_decode($response, true); if (array_key_exists('result',$decoded_response) &amp;&amp; $decoded_response['result'] == 'success'){ echo 'Succesfull POST'; } else if (array_key_exists('error',$decoded_response)){ echo 'Unsuccesfull POST/GET. '. $decoded_response['error']['message']; } else echo "Succesfull GET ".$response; function do_curl($url, $method, $data=Null){ $ch = curl_init($url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLINFO_HEADER_OUT, true); if ($method == 'POST') { $payload = json_encode($data); $header = array( 'Content-Type: application', 'Content-Length: ' . strlen($payload) ); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, $payload); curl_setopt($ch, CURLOPT_HTTPHEADER, $header); } else curl_setopt($ch, CURLOPT_POST, false); $response = curl_exec($ch); curl_close($ch); return $response; } ?&gt; </code></pre> <p>Can somebody help me?</p> </div>

为什么我的运行后会无法运行，没显示错误，直接退出了？_course

```#include<stdio.h> #include<stdlib.h> #include<string.h> typedef struct sta { char *base; char *top; int stacksize; }stack; stack InitStack (stack p,int n) { p.stacksize =n+1; p.base = (char *)malloc(p.stacksize * sizeof(char)); if (p.base== NULL) { printf("初始化栈失败\n"); exit(0); } p.top = p.base; return p; } stack push(stack p,char e[20]) { if(p.top-p.base>=p.stacksize) { printf("社团人数已满,接下来输入学生将进入等待序列"); return p; } *p.top=e[20]; p.top++; return p; } int stackfull(stack p) { if(p.top-p.base>=p.stacksize) return 0; else return p.top-p.base; } char Pop (stack p) { if (p.base==p.top) { printf("栈为空栈，无法出栈 "); exit(0); } p.top--; return *p.top; } void DisplyStack (stack p) { if (p.base==p.top) { printf("栈为空栈，无法遍历\n"); return; } printf("栈中元素为："); printf("顶端["); while (p.top != p.base) { p.top--; printf("%s-", *p.top); } printf("]底端\n"); } int main() { stack p[20],q;int n,i,m,k; printf("输入社团总数\n"); scanf("%d",&i); printf("输入每个社团的最大人数\n"); scanf("%d",&n); p[20].stacksize=n+1; q.stacksize=1000; q=InitStack(q,1000); for(m=0;m<i;m++) { char name[20];int d,u; p[m]=InitStack(p[m],n); printf("输入第%d个社团名称",m); scanf("%s",name); p[m]=push(p[m],name); printf("输入拟加入第%d个社团的学生人数",m); scanf("%d",&u); printf("输入加入第%d个社团的学生名称",m); for(d=0;d<n;d++) { gets(name); p[m]=push(p[m],name); } if(u>n) { for(d=0;d<u-n;d++) { gets(name); q=push(q,name); } } } if(q.top-q.base>0) { int y,b;char s[20]; printf("以下社团有空位"); for(m=0;m<i;m++) { if(stackfull(p[m])>0) { printf("%d,",m); puts(p[m].base); } } for(y=0;y<q.top-q.base;y++) { printf("请选择新社团加入，输入社团前的数字"); scanf("%d",&b); s[20]=Pop(q); p[b]=push(p[b],s); } } for(m=0;m<i;m++) { DisplyStack (p[m]); } } ```

如何访问对象Twitter API中的对象？_course

<div class="post-text" itemprop="text"> <p>I've started working with the Twitter API and Abraham's <code>TwitterOAuth</code> wrapper to retrieve Twitter data, but I can't figure out how to access objects within the array returned. The data is structured like so:</p> <pre><code>array(1) { [0]=&gt; object(stdClass)#462 (24) { ["created_at"]=&gt; string(30) "Tue Sep 11 03:30:54 +0000 2018" ["id"]=&gt; int(120823024720) ["id_str"]=&gt; string(19) "1268383623782373" ["text"]=&gt; string(141) "RT @user: tweet tweet tweet tweet tweet" ["truncated"]=&gt; bool(false) ["entities"]=&gt; object(stdClass)#463 (4) { ["hashtags"]=&gt; array(0) { } ["symbols"]=&gt; array(0) { } ["user_mentions"]=&gt; array(1) { [0]=&gt; object(stdClass)#464 (5) { ["screen_name"]=&gt; string(6) "user" ["name"]=&gt; string(3) "username" ["id"]=&gt; int(12361328) ["id_str"]=&gt; string(8) "12342312" ["indices"]=&gt; array(2) { [0]=&gt; int(3) [1]=&gt; int(10) } } } ["urls"]=&gt; array(0) { } } ["source"]=&gt; string(82) "Twitter for iPhone" ["in_reply_to_status_id"]=&gt; NULL ["in_reply_to_status_id_str"]=&gt; NULL ["in_reply_to_user_id"]=&gt; NULL ["in_reply_to_user_id_str"]=&gt; NULL ["in_reply_to_screen_name"]=&gt; NULL ["user"]=&gt; object(stdClass)#465 (42) </code></pre> <p>There are many more layers, as tweets are actually extremely complex. I can access the first few pieces of data before the <code>entities</code> object, but, how do I access these sub-layers? Say, for instance, I want to access the screen name of the user. I have tried like so:</p> <pre><code>$data-&gt;entities-&gt;user_mentions-&gt;screen_name; </code></pre> <p>But I really have no idea to sort through this nested data. How do I navigate this data structure and access the different pieces of it?</p> </div>

使用twitter API填充数组_course

<div class="post-text" itemprop="text"> <p>For one of my courses, I have to create a website where I can compare Twitter accounts (French Youtubers) according to some criteria as <code>followers_count</code>, <code>statuses_count</code>, or the most popular tweet of the people I choose. </p> <p>My 3 API requests all work. To make this comparison, I created a table, and now I want to put each request in the right cell. How can I do that?</p> <p>This is my table. I put random numbers in for the moment. The first value is the name of the Youtuber and the second, the gender. They never change. The 2 numbers are the answer at $tweets-&gt;followers_count ; and $tweets-&gt;statuses_count ; . This is where I want to put my API request.</p> <p>"Meilleur Tweet" must show the best tweet of the Youtuber since the 7 last days.</p> <pre><code>$max_retweets = -1; $best_tweets = null; foreach ($tweets as $key =&gt; $object) { $retweet_current = $object-&gt;retweet_count; $tweet_current = $object-&gt;text; if ($retweet_current &gt; $max_retweets){ $max_retweets = $retweet_current; $best_tweets = $tweet_current; } } echo ($best_tweets); echo ($best_tweets); </code></pre> <p>Here is the array I want to use :</p> <pre><code>$tableau = [["","Squeezie", "homme", 748, 394, "meilleur_tweeet", "gaming", "voir_plus"], ["","Cyprien", "homme", 87, 459, "meilleur_tweeet", "humour", "voir_plus"], ["","Amixem", "homme", 87, 459, "meilleur_tweeet", "humour", "voir_plus"], ["","Natoo", "femme", 17, 4594, "meilleur_tweeet", "humour", "voir_plus"], ["","Norman", "homme", 87, 459, "meilleur_tweeet", "humour", "voir_plus"], ["","Tibo Inshape", "homme", 65, 459, "meilleur_tweeet", "humour", "voir_plus"], ["","Rémi Gaillard", "homme", 87, 459, "meilleur_tweeet", "humour", "voir_plus"],; </code></pre> </div>

PHP Twitter api具有事件类型的新直接消息（更改为2018年9月）_course

<div class="post-text" itemprop="text"> <p>Use the twitter API to send direct messages, with the following method: "POST direct_messages / new" with php, tmhOAuth library.</p> <p>Since a few days ago they changed (as indicated in <a href="https://developer.twitter.com/en/docs/direct-messages/sending-and-receiving/guides/direct-message-migration.html" rel="nofollow noreferrer">migration documentation</a> ) by the method: "POST direct_messages / events / new", where the structure of the post parameters changes, which are json.</p> <p>Making the changes that indicate, when testing get response code 415: "Callback URL not approved for this client application. Approved callback URLs can be adjusted in your application settings" (<a href="https://developer.twitter.com/en/docs/basics/response-codes.html" rel="nofollow noreferrer">twitter help</a>)</p> <p>Adding a url callback to the app, keeps giving the same error. Did someone have the same problem when they migrated? any suggestions?</p> <p>I detail the changes implemented, with some code:</p> <pre><code> $options = array( "event" =&gt; array( "type" =&gt; 'message_create', "message_create" =&gt; array( "target" =&gt; array('recipient_id' =&gt; $id_usuario), "message_data" =&gt; array('text' =&gt; $texto), ), ) ); $json_options = json_encode($options); $headers_extra = array('Content-Type' =&gt; 'application/json'); $code = $this-&gt;_tmhOAuth-&gt;request('POST', $this-&gt;_tmhOAuth-&gt;url('1.1/direct_messages/events/new'), $json_options, $headers_extra); </code></pre> <p>1) In "options" the format is changed, by the requested json,</p> <p>2) "json_encode" function is used before sending in request method.</p> <p>3) Headers "Content-Type" are added to be taken by the tmhOAuth library.</p> <p>Thanks for any comments or help</p> </div>