redis subscribe无法使用


 class Pubsub {
    private $redis;
    public function __construct(){
        $redis = new \Redis();
        $this->redis = $redis;

    public function callbak($redis,$channel_name,$msg){

    public function subChannel($channels){
        function callbak($redis,$channel_name,$msg){

    public function pubMsg($channel,$msg){


 public function pubAction(){
        $redis = new Pubsub();
        $message = '344';
        $channel = 'sub1';
 public function subAction(){
        $redis = new Pubsub();

Redis::subscribe() expects parameter 2 to be a valid callback, class 'Redis' does not have a method 'callbak'

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class Redis_Bingfa { function __construct() { $this->Config=new Config(); $redisinfo=$this->Config->get('redis'); $this->redis=new Redis(); $this->redis->connect($redisinfo['host'],$redisinfo['port']); } public function test_subscribe(){ $this->redis->setOption(Redis::OPT_READ_TIMEOUT,-1); ini_set('default_socket_timeout', -1); $this->redis->subscribe(array('redischat'),array($this,'process_msg')); } public function process_msg($redis,$chan,$msg){ echo $chan."|".$msg."\n"; } public function test_publish(){ for($i=0;$i<10;$i++){ $this->redis->publish('redischat','user'.$i.' is bidding,price is:'.(7000+$i*200)); } } } $redisBingfa =new Redis_Bingfa(); $action=$_GET['action']; switch($action){ case 'test_subscribe': $redisBingfa->test_publish(); $redisBingfa->test_subscribe(); break; }


import redis class SendRedis(object): def __init__(self): self.pool = redis.ConnectionPool(host='', port=6379, db=0) = redis.StrictRedis(host='') self.msg_key = 'msg_redis' def send(self): pub = # 开始订阅 pub.subscribe(self.msg_key) # 订阅频道 while True: msg = input("请输入你要发送的消息(over结束):"), msg) # 开始发布消息 if msg == "over": print("停止发送") break ``` # 接收 import redis class SubscribeRedis(object): def __init__(self): self.pool = redis.ConnectionPool(host='', port=6379, db=0) = redis.StrictRedis(connection_pool=self.pool) self.msg_key = 'msg_redis' def subscribe(self): pub = # 开始订阅 pub.subscribe(self.msg_key) # 订阅频道 for item in pub.listen(): # 监听状态:有消息发布了就拿过来 print(item) if item['type'] == 'message': print(item['channel'].decode()) print(item['data']) if item['data'] == 'over': print("%s : 停止发送" % (item['channel'].decode())) pub.unsubscribe(self.msg_key) print("取消了订阅") break elif item['type'] == 'subscribe': print("获取的类型不对: %s" % item['type']) break ``` # main import threading from sendRedis import SendRedis from subscribeRedis import SubscribeRedis class MainRedis(object): def main(self): send = SendRedis() sub = SubscribeRedis() t1 = threading.Thread(target=send.send(), args=()) t2 = threading.Thread(target=sub.subscribe(), args=()) t1.start() t2.start()

Golang Redis PubSub超时

<div class="post-text" itemprop="text"> <p>So far I've been doing this:</p> <pre><code>import ( _redis "" "strconv" "time" ) type Redis struct { Connector *_redis.Client PubSub *_redis.PubSub } var redis *Redis = nil func NewRedis() bool { if redis == nil { redis = new(Redis) redis.Connector = _redis.NewClient(&amp;_redis.Options{ Addr: config.RedisHostname + ":" + strconv.FormatInt(config.RedisPort, 10), Password: "", DB: 0, }) Logger.Log(nil, "Connected to Redis") err := redis.Init() if err != nil { Logger.Fatal(nil, "Cannot setup Redis:", err.Error()) return false } return true } return false } func (this *Redis) Init() error { pubsub, err := this.Connector.Subscribe("test") if err != nil { return err } defer pubsub.Close() this.PubSub = pubsub for { msgi, err := this.PubSub.ReceiveTimeout(100 * time.Millisecond) if err != nil { Logger.Error(nil, "PubSub error:", err.Error()) err = this.PubSub.Ping("") if err != nil { Logger.Error(nil, "PubSub failure:", err.Error()) break } continue } switch msg := msgi.(type) { case *_redis.Message: Logger.Log(nil, "Received", msg.Payload, "on channel", msg.Channel) } } return nil } </code></pre> <p>My Connector is a redis.Client, it's working because I was able to publish messages as well.</p> <p>When I run my program, I get the following error: <code>PubSub error: WSARecv tcp i/o timeout</code></p> <p>Do you have any idea of what I'm doing wrong ? I'm using this package: <a href="" rel="nofollow"></a></p> </div>




<div class="post-text" itemprop="text"> <pre><code>psc := redis.PubSubConn{c} psc.Subscribe("example") func Receive() { for { switch v := psc.Receive().(type) { case redis.Message: fmt.Printf("%s: message: %s ", v.Channel, v.Data) case redis.Subscription: fmt.Printf("%s: %s %d ", v.Channel, v.Kind, v.Count) case error: return v } } } </code></pre> <p>In the above code(taken from <a href="" rel="nofollow">Redigo doc</a>), if connection is lost, all subscriptions are also lost. What will be better way to recover from lost connection and resubscribe.</p> </div>


ehcache 作一级缓存,redis作二级缓存,怎么解决脏数据问题 如果服务器A和服务器B都在本地ehcache缓存中缓存了同一个数据X,若服务器A对X修改为了Y,那么修改后的结果Y会缓存在服务器A的ehcache缓存和redis中心缓存中,但是此时服务器B取到的这个数据会是X还是Y呢?服务器A对X数据进行修改后,redis中心缓存不会主动将修改后的值Y推送到各个服务器吗?


<div class="post-text" itemprop="text"> <p>I have a docker-compose file with several containers in, two of which are supposed to communicate via a Redis DB. Both containers have connections to Reids and I can read/write from both. However I'd like a container to be triggered every time the something is added from the other container. I thought I could accomplish this via Redis Sub/Pub but it when I run the code it never triggers anything, even when I can see I've added new items to the Redis queue. </p> <p>From this I have two questions: 1. Is what I'm looking to do even possible? Can I do publish/subscribe in in two separate docker containers and expect it work as described above? 2. If it is possible, can someone please point me below where I"m going wrong with this tools? </p> <p>This is my function that I add new data to the Redis queue and then publish the data in Docker container 1. </p> <pre><code>func redisShare(key string, value string) { jobsQueue.Set(key, value, 0) //setting in the queue jobsQueue.Publish(key, value) //publishing for the other docker container to notice fmt.Println("added ", key, "with a value of ", value, "to the redis queue") } </code></pre> <p>I'm using this line in my other docker container to subscribe to the Redis queue and listen for changes: <code>redisdb.Subscribe()</code></p> <p>I would expect if something was added to the redis queue it would share the data to the other container and I'd see the message received, but right now Docker Container 2 just runs and then closes. </p> <p>Thanks! </p> </div>


程序设计是这样的:线程A将要发给设备的指令先存到send频道,线程B订阅send频道,将数据保存到缓存中,线程C将缓存中的数据发送给设备终端。线程D接收数据回复。 2年了程序跑的还算没问题。最近,设备也由7万台增长到了10万台。程序现在最多跑1个小时,再发指令给设备,却收不到回复了。 打印了一段发送到redis的send频道的日志。发现这样的情况: 发布数据给send频道的日志 09:09:58 read指令 09:10:06 read指令 09:12:39 read指令 订阅send频道,打印日志 09:12:23 09:12:40 不知道为什么会间隔这么久,求大神指点。我没有积分,可怜可怜我吧。


<div class="post-text" itemprop="text"> <p>I am using the redigo library to try to subscribe to a Redis channel and then handle a published message. How do I handle the case where it errors out? Here's what I came up with. Is this a good way to do it? Is there a better way?</p> <p>Note: this question is specific to redigo, but I think it applies to other places where reconnections need to happen.</p> <pre><code>package main import ( "fmt" "time" "" ) func main() { for { fmt.Println("connecting...") c, err := redis.Dial("tcp", "localhost:6379") if err != nil { fmt.Println("error connecting to redis") time.Sleep(5 * time.Second) continue } psc := redis.PubSubConn{c} psc.Subscribe("example") ReceiveLoop: for { switch v := psc.Receive().(type) { case redis.Message: fmt.Printf("%s: message: %s ", v.Channel, v.Data) case redis.Subscription: fmt.Printf("%s: %s %d ", v.Channel, v.Kind, v.Count) case error: fmt.Println("there was an error") fmt.Println(v) time.Sleep(5 * time.Second) break ReceiveLoop } } } } </code></pre> <p>I just put it in the main() function for the example. It would really run in some goroutine.</p> </div>


<div class="post-text" itemprop="text"> <p>Is there a concept of acknowledgements in Redis Pub/Sub?</p> <p>For example, when using RabbitMQ, I can have two workers running on separate machines and when I publish a message to the queue, only one of the workers will ack/nack it and process the message.</p> <p>However I have discovered with Redis Pub/Sub, both workers will process the message.</p> <p>Consider this simple example, I have this go routine running on two different machines/clients:</p> <pre><code>go func() { for { switch n := pubSubClient.Receive().(type) { case redis.Message: process(n.Data) case redis.Subscription: if n.Count == 0 { return } case error: log.Print(n) } } }() </code></pre> <p>When I publish a message:</p> <pre><code>conn.Do("PUBLISH", "tasks", "task A") </code></pre> <p>Both go routines will receive it and run the process function.</p> <p>Is there a way of achieving similar behaviour to RabbitMQ? E.g. first worker to ack the message will be the only one to receive it and process it.</p> </div>


<div class="post-text" itemprop="text"> <p>I have to subscribe to all the channels of my Redis db and simultaneously read data from another hash in the same db node. The following is the code I have written for this using phpredis:</p> <pre><code>$notif = new Worker; try { // connect redis $notif-&gt;connectRedisServer(); // start the worker processing $notif-&gt;startWorkerProcess(); } catch(Exception $e) { exit('Exception: '.$e-&gt;getMessage()); } class Worker { private $redis; public $recentHash = ''; public $notifHash = ''; public $serverConnectionDetails = { //Redis server connection details }; private $redis; // redis database used for getting recent record of every imei const RECENTDATA_DB = 1; public function connectRedisServer() { if(!empty($this-&gt;redis)) return $this-&gt;redis; // already connected $this-&gt;redis = new Redis(); if(!$this-&gt;redis-&gt;pconnect( $this-&gt;serverConnectionDetails['redis']['host'], $this-&gt;serverConnectionDetails['redis']['port'] )) return 'Redis connection failed.'; if(isset($this-&gt;serverConnectionDetails['redis']['password']) &amp;&amp; !$this-&gt;redis-&gt;auth($this-&gt;serverConnectionDetails['redis']['password']) ) return 'Redis authentication failed.'; return $this-&gt;redis; } public function startWorkerProcess() { $this-&gt;redis-&gt;select(self::RECENTDATA_DB); $this-&gt;redis-&gt;pSubscribe(array('*'), array($this, 'processRedisData')); } public function processRedisData($redis, $pattern, $chan, $msg) { $message = rtrim((string) $msg,","); $tData = json_decode($message, true); $tId = (int) $tData['tID']; echo "Recent Published Data:"; var_dump($tData); $data = $this-&gt;getNotifSettings($tId); if(!empty($data)) { echo "Redis Settings: "; var_dump($trackerSettings); } } public function getNotifSettings($tId) { $data = $this-&gt;redis-&gt;hGet($this-&gt;notifHash, $tId); //This command doesn't return any data even if it exists for the $tId if($data === false) return null; $data = json_decode($data, true); return $data; // Always comes up as null } } </code></pre> <p>The problem here is that once I get subscribed to all the channels on <code>db1</code> in Redis. I don't get any result if I try to run <code>HGET</code>, even though the data for the given key exists in the db. I have put additional comments in the code above to explain where the problem is. Check <code>getNotifSettings()</code> function. </p> <p>Any help will be appreciated.</p> </div>


我们分布式系统中需要实现redis 的session共享功能。现在已经实现。jedis的版本为2.9.0。但是redis还具有发布订阅消息的功能,我的系统中不需要。运维警告说,用redis的发布订阅,会导致占链接不释放,长时间会撑爆redis。我现在想要关闭redis的该功能,该如何配置。 下面是spring的配置redis的部分代码:<bean class=""> <property name="maxInactiveIntervalInSeconds" value="3600" /> <property name="redisNamespace" value="#####"/> </bean> <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig"> <property name="maxTotal" value="100"/> <property name="maxIdle" value="10"/> <property name="minIdle" value="5"/> <property name="maxWaitMillis" value="3000"/> <property name="testOnBorrow" value="true"/> <property name="testOnReturn" value="true"/> <property name="testWhileIdle" value="true"/> </bean>

redis 发布、订阅者,redis重启怎么重新订阅?

redis 发布、订阅者, redis重启后怎么重新订阅? 或 redis切换怎么重新订阅问题


<div class="post-text" itemprop="text"> <p>This is referring to a previous post made on Stackoverflow asked 3 yrs ago (<a href="">Connecting directly to Redis with (client side) javascript?</a>). Are there any updates on how to call redis pub/sub from Javascript? (Other than the webdis option the chosen answer showed). I have a redis php script that is able to subscribe from php but I am having trouble calling from Javascript and getting the response. I have tried making a ajax get with jquery and it times out. Any updates would be helpful.</p> </div>


<div class="post-text" itemprop="text"> <p>I am making a PubSub using redigo and the connection is created by redis pool.</p> <p>This is the Redis Pool code:</p> <pre><code>package main import ( "os" "os/signal" "syscall" "time" "" ) type IRedis interface { Addr() string Conn() redis.Conn Set(key string, body string) error Close() } type Redis struct { addr string pool *redis.Pool } func NewRedis(addr string) *Redis { r := &amp;Redis{ addr, &amp;redis.Pool{ MaxIdle: 50000, IdleTimeout: 240 * time.Second, Dial: func() (redis.Conn, error) { c, err := redis.Dial("tcp", addr) if err != nil { return nil, err } return c, err }, TestOnBorrow: func(c redis.Conn, t time.Time) error { _, err := c.Do("PING") return err }, }, } r.cleanupHook() return r } func (r *Redis) cleanupHook() { c := make(chan os.Signal, 1) signal.Notify(c, os.Interrupt) signal.Notify(c, syscall.SIGTERM) signal.Notify(c, syscall.SIGKILL) go func() { &lt;-c r.pool.Close() os.Exit(0) }() } func (r *Redis) Addr() string { return r.addr } func (r *Redis) Conn() redis.Conn { return r.pool.Get() } func (r *Redis) Set(key string, body string) error { p := r.pool.Get() defer p.Close() _, err := p.Do("SET", key, body) return err } func (r *Redis) Close() { r.pool.Close() } </code></pre> <p>This is my PubSub code:</p> <pre><code>package main import ( "log" "" ) type PubSub struct { send chan string conn *redis.PubSubConn } func NewPubSub(s chan string, c *redis.PubSubConn) (*PubSub, error) { err := c.Subscribe("urls") if err != nil { return nil, err } return &amp;PubSub{s, c}, nil } func (ps *PubSub) Start() { for { switch v := ps.conn.Receive().(type) { case redis.Message: data := string(v.Data) ps.send &lt;- data case redis.Subscription: log.Printf("subscription message: %s: %s %d ", v.Channel, v.Kind, v.Count) case error: log.Println("error:", v) return } } } func (ps *PubSub) Close() { ps.conn.Close() } </code></pre> <p>and after I receive 10k messages in my PubSub channel the connection is lost and I receive an redis.Error with the message EOF</p> <p>Any thoughts why this is happen? Even when I run locally the problem happens</p> </div>

Redis Golang客户端会定期丢弃不良的PubSub连接(EOF)

<div class="post-text" itemprop="text"> <h2>What I did:</h2> <p>I'm using the <code>golang</code> Redis library from <code></code>. My client listens on a PubSub channel called 'control'. Whenever a message arrives, I handle it and continue receiving the next message. I listen endlessly and the messages can come often, or sometimes not for days.</p> <h2>What I expect:</h2> <p>I expect the redis channel to stay open endlessly and receive messages as they are sent.</p> <h2>What I experience:</h2> <p>Usually it runs well for days, but every once in a while <code>client.Receive()</code> returns <code>EOF</code> error. After this error, the client no longer receives messages on that channel. Internally, the redis client prints to stdout the following message:</p> <blockquote> <p>redis: 2019/08/29 14:18:57 pubsub.go:151: redis: discarding bad PubSub connection: EOF</p> </blockquote> <p><strong><em>Disclaimer:</em></strong> I am not certain that this error is what causes me to stop receiving messages, it just seems related.</p> <h2>Additional questions:</h2> <p>I'd like to understand why this happens, if this is normal and if reconnecting to the channel via <code>client.Subscribe()</code> whenever I encounter the behaviour is a good remedy, or should I address the root issue, whatever it may be.</p> <h2>The code:</h2> <p>Here is the entire code that handles my client (connect to redis, subscribe to channel, endlessly receive messages):</p> <pre><code>func InitAndListenAsync(log *log.Logger, sseHandler func(string, string) error) error { rootLogger = log.With(zap.String("component", "redis-client")) host := env.RedisHost port := env.RedisPort pass := env.RedisPass addr := fmt.Sprintf("%s:%s", host, port) tlsCfg := &amp;tls.Config{} client = redis.NewClient(&amp;redis.Options{ Addr: addr, Password: pass, TLSConfig: tlsCfg, }) if _, err := client.Ping().Result(); err != nil { return err } go func() { controlSub := client.Subscribe("control") defer controlSub.Close() for { in, err := controlSub.Receive() // *** SOMETIMES RETURNS EOF ERROR *** if err != nil { rootLogger.Error("failed to get feedback", zap.Error(err)) break } switch in.(type) { case *redis.Message: cm := comm.ControlMessageEvent{} payload := []byte(in.(*redis.Message).Payload) if err := json.Unmarshal(payload, &amp;cm); err != nil { rootLogger.Error("failed to parse control message", zap.Error(err)) } else if err := handleIncomingEvent(&amp;cm); err != nil { rootLogger.Error("failed to handle control message", zap.Error(err)) } default: rootLogger.Warn("Received unknown input over REDIS PubSub control channel", zap.Any("received", in)) } } }() return nil } </code></pre> </div>


redis的发布与订阅时,当redis发布了消息,publish了消息,redis缓存会存贮这个消息吗?如果存储了,key是多少,该怎么查询呢? @Test public void test(){ publishMessage.publishMessage("order", "aaaaaaa"); } 2019-12-25 15:26:31.005 INFO 17152 --- [ container-2] : 接收了order频道的消息:"aaaaaaa" 但是缓存里面没有看到这个内容


<div class="post-text" itemprop="text"> <p>I have a gateway server, which can push message to client side by using websocket, A new client connected to my server, I will generate a <code>cid</code> for it. And then I also subscribe a channel, which using <code>cid</code>. If any message publish to this channel, My server will push it to client side. For now, all unit are working fine, but when I try to test with benchmark test by <a href="" rel="nofollow noreferrer">thor</a>, it will crash, I fine the <code>DeliverMessage</code> has some issue, it would never exit, since it has a die-loop. but since redis need to subscribe something, I don't know how to avoid loop.</p> <pre><code>func (h *Hub) DeliverMessage(pool *redis.Pool) { conn := pool.Get() defer conn.Close() var gPubSubConn *redis.PubSubConn gPubSubConn = &amp;redis.PubSubConn{Conn: conn} defer gPubSubConn.Close() for { switch v := gPubSubConn.Receive().(type) { case redis.Message: // fmt.Printf("Channel=%q | Data=%s ", v.Channel, string(v.Data)) h.Push(string(v.Data)) case redis.Subscription: fmt.Printf("Subscription message: %s : %s %d ", v.Channel, v.Kind, v.Count) case error: fmt.Println("Error pub/sub, delivery has stopped", v) panic("Error pub/sub") } } } </code></pre> <p>In the main function, I have call the above function as:</p> <pre><code>go h.DeliverMessage(pool) </code></pre> <p>But when I test it with huge connection, it get me some error like:</p> <blockquote> <p>ERR max number of clients reached</p> </blockquote> <p>So, I change the redis pool size by change <code>MaxIdle</code>:</p> <pre><code>func newPool(addr string) *redis.Pool { return &amp;redis.Pool{ MaxIdle: 5000, IdleTimeout: 240 * time.Second, Dial: func() (redis.Conn, error) { return redis.Dial("tcp", addr) }, } } </code></pre> <p>But it still doesn't work, so I wonder to know, if there any good way to kill a goroutine after my websocket disconnected to my server on the below selection:</p> <pre><code>case client := &lt;-h.Unregister: if _, ok := h.Clients[client]; ok { delete(h.Clients, client) delete(h.Connections, client.CID) close(client.Send) if err := gPubSubConn.Unsubscribe(client.CID); err != nil { panic(err) } // TODO kill subscribe goroutine if don't client-side disconnected ... } </code></pre> <p>But How do I identify this goroutine? How can I do it like <code>unix</code> way. <code>kill -9 &lt;PID&gt;</code>?</p> </div>

Redis Pub / Sub使用Python后端和

<div class="post-text" itemprop="text"> <p>I have a PHP code which publishes data to a channel called "MESSAGE_FROM_MARS". The snippet is as follows : </p> <pre><code> function send_data_to_check_spam($feedback) { $d_id=$this-&gt;redis_connect(11); //echo $feedback; //die(); echo "&lt;b style='color:red'&gt;MESSAGE SENT TO SPAM SWATTER&lt;/b&gt;"."&lt;br&gt;"; $d_id-&gt;PUBLISH("MESSAGE_FROM_MARS",$feedback); } </code></pre> <p>There is a server side python listener which receives the published data and the snippet is as follows : </p> <pre><code>r = redis.StrictRedis(host='localhost', port=6379, db=11) def sum(a,b): print a+b def main(): sub = r.pubsub() sub.subscribe('MESSAGE_FROM_MARS') </code></pre> <p>The python code does the processing and publishes the result back. The snippet is as follows : </p> <pre><code>r.publish('SPAM_STATUS',spam) </code></pre> <p>I am trying to get the result using a websocket and the snippet is as follows. : </p> <pre><code>&lt;script&gt; var socket = io.connect(''); console.log(socket); socket.on('SPAM_STATUS', function (data) { alert("here"); console.log(data); //socket.emit('my other event', { my: 'data' }); }); &lt;/script&gt; </code></pre> <p>Everything works like a peach except that the for some reason is not getting the message from the SPAM_STATUS channel. </p> <p>What am I doing wrong? I am relatively new to, so pardon my naivety </p> </div>

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【为什么学爬虫?】 &nbsp; &nbsp; &nbsp; &nbsp;1、爬虫入手容易,但是深入较难,如何写出高效率的爬虫,如何写出灵活性高可扩展的爬虫都是一项技术活。另外在爬虫过程中,经常容易遇到被反爬虫,比如字体反爬、IP识别、验证码等,如何层层攻克难点拿到想要的数据,这门课程,你都能学到! &nbsp; &nbsp; &nbsp; &nbsp;2、如果是作为一个其他行业的开发者,比如app开发,web开发,学习爬虫能让你加强对技术的认知,能够开发出更加安全的软件和网站 【课程设计】 一个完整的爬虫程序,无论大小,总体来说可以分成三个步骤,分别是: 网络请求:模拟浏览器的行为从网上抓取数据。 数据解析:将请求下来的数据进行过滤,提取我们想要的数据。 数据存储:将提取到的数据存储到硬盘或者内存中。比如用mysql数据库或者redis等。 那么本课程也是按照这几个步骤循序渐进的进行讲解,带领学生完整的掌握每个步骤的技术。另外,因为爬虫的多样性,在爬取的过程中可能会发生被反爬、效率低下等。因此我们又增加了两个章节用来提高爬虫程序的灵活性,分别是: 爬虫进阶:包括IP代理,多线程爬虫,图形验证码识别、JS加密解密、动态网页爬虫、字体反爬识别等。 Scrapy和分布式爬虫:Scrapy框架、Scrapy-redis组件、分布式爬虫等。 通过爬虫进阶的知识点我们能应付大量的反爬网站,而Scrapy框架作为一个专业的爬虫框架,使用他可以快速提高我们编写爬虫程序的效率和速度。另外如果一台机器不能满足你的需求,我们可以用分布式爬虫让多台机器帮助你快速爬取数据。 &nbsp; 从基础爬虫到商业化应用爬虫,本套课程满足您的所有需求! 【课程服务】 专属付费社群+每周三讨论会+1v1答疑




时钟功能 还有闹钟功能,温湿度功能,整点报时功能 你值得拥有

学生成绩管理系统(PHP + MYSQL)

做的是数据库课程设计,使用的php + MySQL,本来是黄金搭配也就没啥说的,推荐使用wamp服务器,里面有详细的使用说明,带有界面的啊!呵呵 不行的话,可以给我留言!

面试了一个 31 岁程序员,让我有所触动,30岁以上的程序员该何去何从?



获取讲师答疑方式: 在付费视频第一节(触摸命令_ALL)片头有二维码及加群流程介绍 限时福利 原价99元,今日仅需39元!购课添加小助手(微信号:itxy41)按提示还可领取价值800元的编程大礼包! 讲师介绍: 苏奕嘉&nbsp;前阿里UC项目工程师 脚本开发平台官方认证满级(六级)开发者。 我将如何教会你通过【定制脚本】赚到你人生的第一桶金? 零基础程序定制脚本开发课程,是完全针对零脚本开发经验的小白而设计,课程内容共分为3大阶段: ①前期将带你掌握Q开发语言和界面交互开发能力; ②中期通过实战来制作有具体需求的定制脚本; ③后期将解锁脚本的更高阶玩法,打通任督二脉; ④应用定制脚本合法赚取额外收入的完整经验分享,带你通过程序定制脚本开发这项副业,赚取到你的第一桶金!


原价169,限时立减100元! 系统掌握Python核心语法16点,轻松应对工作中80%以上的Python使用场景! 69元=72讲+源码+社群答疑+讲师社群分享会&nbsp; 【哪些人适合学习这门课程?】 1)大学生,平时只学习了Python理论,并未接触Python实战问题; 2)对Python实用技能掌握薄弱的人,自动化、爬虫、数据分析能让你快速提高工作效率; 3)想学习新技术,如:人工智能、机器学习、深度学习等,这门课程是你的必修课程; 4)想修炼更好的编程内功,优秀的工程师肯定不能只会一门语言,Python语言功能强大、使用高效、简单易学。 【超实用技能】 从零开始 自动生成工作周报 职场升级 豆瓣电影数据爬取 实用案例 奥运冠军数据分析 自动化办公:通过Python自动化分析Excel数据并自动操作Word文档,最终获得一份基于Excel表格的数据分析报告。 豆瓣电影爬虫:通过Python自动爬取豆瓣电影信息并将电影图片保存到本地。 奥运会数据分析实战 简介:通过Python分析120年间奥运会的数据,从不同角度入手分析,从而得出一些有趣的结论。 【超人气老师】 二两 中国人工智能协会高级会员 生成对抗神经网络研究者 《深入浅出生成对抗网络:原理剖析与TensorFlow实现》一书作者 阿里云大学云学院导师 前大型游戏公司后端工程师 【超丰富实用案例】 0)图片背景去除案例 1)自动生成工作周报案例 2)豆瓣电影数据爬取案例 3)奥运会数据分析案例 4)自动处理邮件案例 5)github信息爬取/更新提醒案例 6)B站百大UP信息爬取与分析案例 7)构建自己的论文网站案例


这门课程基于主流的java8平台,由浅入深的详细讲解了java SE的开发技术,可以使java方向的入门学员,快速扎实的掌握java开发技术!


&nbsp; &nbsp; &nbsp; &nbsp; 本课程为Python数据挖掘方向的入门课程,课程主要以真实数据为基础,详细介绍数据挖掘入门的流程和使用Python实现pandas与numpy在数据挖掘方向的运用,并深入学习如何运用scikit-learn调用常用的数据挖掘算法解决数据挖掘问题,为进一步深入学习数据挖掘打下扎实的基础。


本课程从初学者角度出发,提供了C#从入门到成为程序开发高手所需要掌握的各方面知识和技术。 【课程特点】 1 由浅入深,编排合理; 2 视频讲解,精彩详尽; 3 丰富实例,轻松易学; 4 每章总结配有难点解析文档。 15大章节,228课时,1756分钟与你一同进步!






想学好JAVA必须要报两万的培训班吗? Java大神勿入 如果你: 零基础想学JAVA却不知道从何入手 看了一堆书和视频却还是连JAVA的环境都搭建不起来 囊中羞涩面对两万起的JAVA培训班不忍直视 在职没有每天大块的时间专门学习JAVA 那么恭喜你找到组织了,在这里有: 1. 一群志同道合立志学好JAVA的同学一起学习讨论JAVA 2. 灵活机动的学习时间完成特定学习任务+每日编程实战练习 3. 热心助人的助教和讲师及时帮你解决问题,不按时完成作业小心助教老师的家访哦 上一张图看看前辈的感悟: &nbsp; &nbsp; 大家一定迫不及待想知道什么是极简JAVA学习营了吧,下面就来给大家说道说道: 什么是极简JAVA学习营? 1. 针对Java小白或者初级Java学习者; 2. 利用9天时间,每天1个小时时间; 3.通过 每日作业 / 组队PK / 助教答疑 / 实战编程 / 项目答辩 / 社群讨论 / 趣味知识抢答等方式让学员爱上学习编程 , 最终实现能独立开发一个基于控制台的‘库存管理系统’ 的学习模式 极简JAVA学习营是怎么学习的? &nbsp; 如何报名? 只要购买了极简JAVA一:JAVA入门就算报名成功! &nbsp;本期为第四期极简JAVA学习营,我们来看看往期学员的学习状态: 作业看这里~ &nbsp; 助教的作业报告是不是很专业 不交作业打屁屁 助教答疑是不是很用心 &nbsp; 有奖抢答大家玩的很嗨啊 &nbsp; &nbsp; 项目答辩终于开始啦 &nbsp; 优秀者的获奖感言 &nbsp; 这是答辩项目的效果 &nbsp; &nbsp; 这么细致的服务,这么好的氛围,这样的学习效果,需要多少钱呢? 不要1999,不要199,不要99,只要9.9 是的你没听错,只要9.9以上所有就都属于你了 如果你: 1、&nbsp;想学JAVA没有基础 2、&nbsp;想学JAVA没有整块的时间 3、&nbsp;想学JAVA没有足够的预算 还等什么?赶紧报名吧,抓紧抢位,本期只招300人,错过只有等时间待定的下一期了 &nbsp; 报名请加小助手微信:eduxy-1 &nbsp; &nbsp;


董付国系列教材《Python程序设计基础》、《Python程序设计(第2版)》、《Python可以这样学》配套视频,讲解Python 3.5.x和3.6.x语法、内置对象用法、选择与循环以及函数设计与使用、lambda表达式用法、字符串与正则表达式应用、面向对象编程、文本文件与二进制文件操作、目录操作与系统运维、异常处理结构。


文章目录Java概述何为编程什么是Javajdk1.5之后的三大版本JVM、JRE和JDK的关系什么是跨平台性?原理是什么Java语言有哪些特点什么是字节码?采用字节码的最大好处是什么什么是Java程序的主类?应用程序和小程序的主类有何不同?Java应用程序与小程序之间有那些差别?Java和C++的区别Oracle JDK 和 OpenJDK 的对比基础语法数据类型Java有哪些数据类型switc...


机器学习实战系列套餐以实战为出发点,帮助同学们快速掌握机器学习领域必备经典算法原理并结合Python工具包进行实战应用。建议学习顺序:1.Python必备工具包:掌握实战工具 2.机器学习算法与实战应用:数学原理与应用方法都是必备技能 3.数据挖掘实战:通过真实数据集进行项目实战。按照下列课程顺序学习即可! 课程风格通俗易懂,用最接地气的方式带领大家轻松进军机器学习!提供所有课程代码,PPT与实战数据,有任何问题欢迎随时与我讨论。


发现网上很多Java面试题都没有答案,所以花了很长时间搜集整理出来了这套Java面试题大全,希望对大家有帮助哈~ 本套Java面试题大全,全的不能再全,哈哈~ 一、Java 基础 1. JDK 和 JRE 有什么区别? JDK:Java Development Kit 的简称,java 开发工具包,提供了 java 的开发环境和运行环境。 JRE:Java Runtime Environ...


已经连续五年参加大厂校招、社招的技术面试工作,简历看的不下于万份 这篇文章会用实例告诉你,什么是差的程序员简历! 疫情快要结束了,各个公司也都开始春招了,作为即将红遍大江南北的新晋UP主,那当然要为小伙伴们做点事(手动狗头)。 就在公众号里公开征简历,义务帮大家看,并一一点评。《启舰:春招在即,义务帮大家看看简历吧》 一石激起千层浪,三天收到两百多封简历。 花光了两个星期的所有空闲时...


深度学习系列课程从深度学习基础知识点开始讲解一步步进入神经网络的世界再到卷积和递归神经网络,详解各大经典网络架构。实战部分选择当下最火爆深度学习框架PyTorch与Tensorflow/Keras,全程实战演示框架核心使用与建模方法。项目实战部分选择计算机视觉与自然语言处理领域经典项目,从零开始详解算法原理,debug模式逐行代码解读。适合准备就业和转行的同学们加入学习! 建议按照下列课程顺序来进行学习 (1)掌握深度学习必备经典网络架构 (2)深度框架实战方法 (3)计算机视觉与自然语言处理项目实战。(按照课程排列顺序即可)


本课程为HoloLens2开发入门教程,讲解部署开发环境,安装VS2019,Unity版本,Windows SDK,创建Unity项目,讲解如何使用MRTK,编辑器模拟手势交互,打包VS工程并编译部署应用到HoloLens上等。


本文的面试题如下: Redis 持久化机制 缓存雪崩、缓存穿透、缓存预热、缓存更新、缓存降级等问题 热点数据和冷数据是什么 Memcache与Redis的区别都有哪些? 单线程的redis为什么这么快 redis的数据类型,以及每种数据类型的使用场景,Redis 内部结构 redis的过期策略以及内存淘汰机制【~】 Redis 为什么是单线程的,优点 如何解决redis的并发竞争key问题 Red...



【数据结构与算法综合实验】欢乐连连看(C++ & MFC)案例

这是武汉理工大学计算机学院数据结构与算法综合实验课程的第三次项目:欢乐连连看(C++ & MFC)迭代开发代码。运行环境:VS2017。已经实现功能:开始游戏、消子、判断胜负、提示、重排、计时、帮助。


YOLOv3是一种基于深度学习的端到端实时目标检测方法,以速度快见长。本课程将手把手地教大家使用labelImg标注和使用YOLOv3训练自己的数据集。课程分为三个小项目:足球目标检测(单目标检测)、梅西目标检测(单目标检测)、足球和梅西同时目标检测(两目标检测)。 本课程的YOLOv3使用Darknet,在Ubuntu系统上做项目演示。包括:安装Darknet、给自己的数据集打标签、整理自己的数据集、修改配置文件、训练自己的数据集、测试训练出的网络模型、性能统计(mAP计算和画出PR曲线)和先验框聚类。 Darknet是使用C语言实现的轻型开源深度学习框架,依赖少,可移植性好,值得深入探究。 除本课程《YOLOv3目标检测实战:训练自己的数据集》外,本人推出了有关YOLOv3目标检测的系列课程,请持续关注该系列的其它课程视频,包括: 《YOLOv3目标检测实战:交通标志识别》 《YOLOv3目标检测:原理与源码解析》 《YOLOv3目标检测:网络模型改进方法》 敬请关注并选择学习!



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