Switch-case retrun break, switch-caseretrun
{
If statements process two branches, the if-else-if structure must be used when processing multiple branches. However, if there are many branches, the more nested if statement layers, the program is not only huge but also difficult to understand. therefore, the C language provides a condition selection statement specifically used to process multi-branch structur
Grammarsyntax for switch statements in the Swift language:
Copy Code code as follows:
Switch Expression {
Case expression1:
Statement (s)
Fallthrough/* Optional *
Case Expression2, Expression3:
Statement (s)
Fallthrough/* Optional *
Default:/* Optional *statement (s);}
Note: In most languages, in a switch statement block, the
Two-layer switch:
Two-layer switching technology is a mature development, two-layer switch is a data link layer device, can identify the MAC address information in the packet, according to the MAC address forwarding, and the MAC address and the corresponding port record in their own internal address table.
Specifically as follows:
(1) When the switch receives a
Two-tier switch:The second layer switching technology is more mature, two layer switch is a data link layer device, can identify the MAC address information in the packet, according to the MAC address to forward, and these MAC addresses and corresponding ports recorded in their own internal table of addresses. Specific as follows:(1) When the switch receives a packet from a port, it reads the source MAC add
Many SME internal network structures are simple, with only one switch connecting all employees and servers together and then accessing the Internet through fiber optics. Of course, in order to ensure the security of some hosts and split the internal broadcast packet to improve the network transmission speed, take such as partition VLAN, the allocation of different subnets to achieve. By partitioning VLANs, clients on different ports on the same
Java learning notes (entry) _ multiple select structure switch statements, learning notes switchMultiple choice structure switch statement In java, a switch statement is provided for the multi-path Branch selection process. The switch statement selects one of the multiple operations to run based on the value of an expr
Graphic tutorial of the third-tier switch, graphic of the third-tier SwitchRecently, the price of vswitches has been greatly reduced. Some models of some domestic brands have fallen below RMB, which is almost the same as that of hubs. With the updates of People's cognition and the demand for bandwidth, switch replacement of the hub in the network architecture is the trend of the times, and "switching to the
This article for Bo Master original, reproduced please indicate the SOURCE.Switch switches: The switch switch has only two options, true or false, as Required. So we think of the HTML CheckBox control and use it to do it.id= "switch" type= "checkbox" class= "switch" />however, in the browser, the checkbox has a f
1. The uiswitch class provides an on/off user control.
- (void)viewDidLoad { [super viewDidLoad]; self.mySwitch = [[UISwitch alloc]initWithFrame:CGRectMake(100, 100, 0, 0)]; [self.view addSubview:self.mySwitch];}The default status of the switch control is disabled. You can change the on Attribute of the uisiwtch instance. You can also call the Seton method as follows:
[self.mySwitch setOn:YES];If you want to receive a notification when th
In daily life, the Internet access will certainly involve wireless switches, which provide users with exclusive point-to-point connections. data packets are only sent to the destination, so as to avoid a significant reduction in the bandwidth of all ports when the data volume is large, therefore, selecting a high-performance wireless switch saves a lot of trouble for future work.
When used for a star structure, it acts as the center node to enlarge th
Php process control switch instance, php process switch instance. Php process control switch instance. php process switch instance switch allows you to select multiple possible results of a scalar (expression. Syntax: switch (expr
The sound switch is a small program developed by DmitryKann. The purpose of this program is very simple. You can switch between different audio sources such as speakers, headphones, and HDMI by clicking twice. You may say ldquo; no big deal rdquo ;. After all, it is not a rocket science. You can go to system settings gt; sound settings and simply select the input/output source you want. The sound
Start the boot menu of the Huawei Switch configuration backup menu to restore switch data. Now, Huawei Switch configuration backup technology is gaining attention. Some people may not know what the Huawei Switch configuration backup is. It doesn't matter, after reading the following parameters, you will become an exper
Switch select structure, switch structure
Switch (expression) // expression can use byte, short, int, char {case value 1: logical statement; break; // jump out of switch statement case value 2: logical statement; break; default: // all conditions do not conform to the use of default, which is irrelevant to the locatio
Cocos2d-x scene switch, cocos2d-x scene Switch
* *********************************** Please specify the source: bytes *******************************************
I finally handed over the interface today ,~~ O (>_
Make a scenario switch to celebrate.
PS: Welcome to discuss it together ~, Come on together!
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This article consist
With the popularization of the Internet, the development of information technology, data center construction needs and standards are also constantly developing, so the data Center for network equipment requirements are gradually upgraded, ordinary switches are often unable to meet the needs of the data center.
Compared with common switches, data center switches need to have the features of high capacity, large cache, virtualization, FCOE, two-layer trill technology.
1. High-capacity equipment
What is a fool switch? It is easy to understand the introduction is not to take care of its switch, connected to the network equipment can be used.
With the development of modern society, the modern "lazy person" also more and more, those who light, convenient, easy and labor-saving "lazy people" is more and more modern "lazy people" welcome. Today's switches are increasingly "goofy", such as the Omni-qs-5
Configuration of brocade 300 optical fiber switch, brocade 300 optical fiber switchI. Mounting1. New Fiber Optic Switches are availableNote that the network port and Management port are different2. wiredIi. basic configuration1. Configure IP address and Change User PasswordA. The default ip address of the new optical fiber switch is 10.77.77.77. You need to configure the ip address for direct connection.B.
JQuery + PHP creates the sliding switch effect and jqueryphp slide Switch
This article describes how to use jQuery, PHP, and MySQL to enable or disable the 360 Security Guard firewall. This function can be applied to the product function.
In order to better demonstrate this example, we need a data table to record the required function description and enabling status. The table structure is as follows:
Copy
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