OC tutorial 3-category extension ProtocolOC3-language features
This chapter mainly describes the OC language features.
Category)
Extension)
Protocol 1, categoryThe category mechanism in the OC language has only one function: Adding Methods to any classNow we create a Student class@interface Student : NSObject@property(nonatomic,strong)NSString * name;@end@implementation@endIf you want to add a method fo
→ Sender's Bridge ID
→ Sender's Port ID
5. Port Status1. block, delay 20 seconds2. Monitor, delay 15 seconds3. Study, delay 15 seconds4. ForwardingIn the blocking state, the BPDUs are still allowed to pass. So the total delay will have 20+15+15=50 seconds, but in some companies delay 50 seconds is unacceptable, this time can change the delay setting. However, it is not recommended to easily change the default value of the spanning tree protocol
XMLHttpRequest object, you need to check the type of browser. A real business-like protocol can reduce this code-writing effort. Basically, loading and saving the specification provides a common API for Web developers to access and modify the DOM in a platform-and language-independent way. In other words, whether your platform is Windows or Linux, it doesn't matter whether you're developing it in VBScript or using JavaScript. You can also save a DOM
data storage operations in the device driver, but to consider the data processing congestion, do not affect the Serversuperio device-driven overall scheduling.Once you have configured and tested your system using the designer IDE, you can choose to start the console as a runtime environment with the following effects:
1.[serial] "C # communication (Serial and network) framework design and implementation"2.[Open source]c# cross-platform IoT communication Framework Serversuperio (Ssio) Intr
Basic tutorial for Android -- 7.6.3 Socket communication based on TCP protocol (2)This section introduces:
In the previous section, we introduced some basic concepts and usage of Socket, and then wrote a simple chat room for piggyDemo, I believe you have a preliminary understanding of the Socket. In this section, we will learn how to use the Socket to achieve resumable upload of large files!The following
Detailed tutorial on MySQL master-slave Replication Based on the SSL protocol,
When mysql is replicated across the Internet, others can steal the mysql replication information, which is in plain text and therefore insecure. Here, the copied information is encrypted through ssl. When a customer wants to access the server without a fixed ip address, mysql must allow access from any address. The server and cli
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