:" + channel); }); Client1.on ("Message", function (channel, message) {//channel is the type of subscription sent to the send side, and message is the information received in that channel Console.log ("Cl IENT1 Channel Name: "+ Channel +"->message: "+ messAge); Msg_count + = 1; if (Msg_count = = = 3) {client1.unsubscribe (); Unsubscribe all channel client1.end (); CLIENT1 exit Pub/sub mode, can
; p.get_message () {' pattern ': None, ' type ': ' Subscribe ', ' Channel ': ' My-first-channel ', ' Data ': 2L} >>> p.get_message () {' pattern ': None, ' type ': ' Psubscribe ', ' Channel ': ' my-* ', ' Data ': 3L} Every message read from a PubSub instance is a dictionary with the following keys. All information read through the PubSub instance is a dictionary with the following keys: Type:one of the following: ' Subscribe ', ' unsubscribe ',
, 0 is returned. Messages sent are not persistent. That is to say, when a client subscribes to channel.1, it can only receive messages subsequently published to this channel, but those sent earlier will not be received.
The SUBSCRIBE channel command can SUBSCRIBE to multiple channels at the same time. The usage is SUBSCRIBE channel [channel…]. Now we open A new redis-cli instance A and use it to subscribe to channel.1:
redis A>SUBSCRIBE channel.1Reading messages... (press Ctrl-C to quit)1) "sub
to named topics (SUBSCRIBE)The subscription message (SUBSCRIBE) allows a client to register one or more subject names of interest on the server. Messages issued to these topics are delivered to clients as release messages from the server side. The subscription message also describes the quality of service level of the posting message that the Subscriber wants to receive.
Subscription Message Confirmation (SUBACK)When the server receives a subscription message from the client, the acknowledgemen
equivalent to a string. Format ("{0}", msg), MSG refers to a variable.
3. Subscribing to an event with an anonymous method
Public Form1 () { InitializeComponent (); This. Load + = Form1_Load; Click event (lambda mode creation) //this. Click + = (s, e) = = //{ // MessageBox.Show ($ "{((MouseEventArgs) e). Location} "); //}; Use the anonymous method to create the event this . Click + = D
)
0
0
0
0
0
0
0
0
BYTE 2
Message ID LSB (10)
0
0
0
0
1
0
1
0
playload/message body
BYTE 1
Granted QoS (0)
X
X
X
X
X
X
0
0
BYTE 1
Granted QoS (2)
X
X
X
X
X
X
1
0
Variable HeadMessage Identifier, the server needs to be attached and the client needs to process.Me
)
0
0
0
0
0
0
0
0
BYTE 2
Message ID LSB (10)
0
0
0
0
1
0
1
0
playload/message body
BYTE 1
Granted QoS (0)
X
X
X
X
X
X
0
0
BYTE 1
Granted QoS (2)
X
X
X
X
X
X
1
0
Variable HeadMessage Identifier, the server needs to be attached and the client needs to process.Me
(redisclient *c, RobJ *channel)/* Client subscribe to a channel pipe/INT Pub Subunsubscribechannel (redisclient *c, robj *channel, int notify)/* unsubscribe from the channel/int pubsubsubscribepattern in the client ( Redisclient *c, RobJ *pattern)/* Client clients subscribe to a mode/int Pubsubunsubscribepattern (redisclient *c, robj *pattern, int notif Y)/* Client client cancels subscription to pattern mode/int pubsubunsubscribeallchannels (rediscl
events.
Publisher. Raisecustomevent + = handlecustomevent;
Note that the syntax above is the new syntax in C # 2.0. It is exactly equivalent to the C # 1.0 syntax and you must explicitly create the encapsulated delegate using the following new keyword:
Publisher. Raisecustomevent + = new Customeventhandler (handlecustomevent);
subscribing to events using anonymous methods
Use the addition assignment operator (+ =) to attach an anonymous method to the event. In the following example, suppose an
...] # Subscribe to one or more patterns, the pattern parameter can contain glob style matches (*,[],?)Psubscirbe news::[ie]t# The behavior of the unsubscribe command is different for each client, REDIS-CLI directly out of the client to unsubscribe, Python and Ruby need to display the execution commandUnsubcribe [channel|[ Channel ...] # Unsubscribe from designa
) all subscribers and may often send messages as event objects.
Example: magazine subscription
Suppose there is a publisher, paper, who publishes newspapers and monthly magazines every day. The subscriber joe will be notified of any news that occurs at any time.
This paper object requires a subscribers attribute, which is an array that stores all subscribers. The subscription behavior only adds it to this array. When an event occurs, paper cyclically traverses the subscriber list and notifies th
. Subscribe to named topics (SUBSCRIBE)The subscription message (SUBSCRIBE) allows a client to register one or more subject names of interest on the server. Messages issued to these topics are delivered to clients as release messages from the server side. The subscription message also describes the quality of service level of the posting message that the Subscriber wants to receive.9. Subscription Message Confirmation (SUBACK)When the server receives a subscription message from the client, the a
mysql| Reference | Reference Manual | error | Mailing LIST | chinese
MySQL Chinese reference manual 3 (MySQL mailing list and how to ask questions or report errors)
Reprinted translator: Yan Zi
return 〗〖 Forwarding
Translator: Yan Zi (clyan@sohu.com) Homepage: http://linuxdb.yeah.net
2 MySQL mailing list and how to ask questions or report errors
2.1 MySQL Mailing List
To subscribe to the main MySQL mailing list, send a message to the email address mysql-subscribe@lists.mysql.com.
To
information to me after the activity ends, and your product is completely irrelevant to the activity, this is also a very wicked behavior.
6. Return confirmation
I know exactly what it means to unsubscribe. You don't have to send me an email to confirm your Unsubscribe,
7. Keep sending email reminders to subscriber
Even if your goal is to track the subscriber, you do not have to send an email to me every t
This article mainly expresses the meaning is: the Mail design and the webpage design has the huge difference. If you can use the text do not use the picture, if you want to use the picture also remember to add content to the Alt attribute of the picture, if it is possible to give a clear unsubscribe link.
The direct inducement to write this article is this afternoon that huge crash Taobao registration experience (note, I said is to my experience of t
) { // ... }, subscribe: function( topic, context, callback, priority ) { // ... }, unsubscribe: function( topic, context, callback ) { // ... }};}( this ) );
As you can see, amplify defines a global variable named amplify (as a global attribute). It has three methods: publish, subscribe, and unsubscribe. In addition, as a local variable, subscriptions stores all the Custom Event names and t
In the mail system, how do I obtain the current email address? I want to subscribe to and unsubscribe to the email address of the recipient in other people's emails? But how can this be obtained? Share to: how to obtain the current email address in the mail system
If I want to subscribe to and unsubscribe, what is the recipient's email address in someone else's email?
But how can this be obtained?
Shar
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.