Vamei Source: Http://www.cnblogs.com/vamei Welcome reprint, Please also keep this statement. Thank you!"The trumpet starts to broadcast", if you know this, you must be the older generation. "Little Horn" is a radio program for children from the 50 's to the 80 's. At the beginning of the program, there will be a kind of broadcast: "Children, small speakers began to broadcast!" "Hearing here, the children in front of the radio get excited and ready to listen to the program: This issue is the
First, determine whether there is network data connection:The most basic network state judgment, if there is no network connection, all operations will not go on.Microsoft.Phone.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable ()Second, determine the network type (gsm/cdma/wifi/ethernet):In the general application, need to know the network status is also three kinds: No network,
/** * Get local IP * @return */private string getlocalipaddress () {try {String IPv4 = null; listGet MAC address via IP/*** get MAC address * @return */@SuppressWarnings ("finally") via local IP privatestring GETLOCALMACADDRESSFROMIP () {Stringmac_s= "";try{byte[]mac; Stringip=getlocalipaddress ();if (! Inetaddressutils.isipv4address (IP)) {returnmac_s;} Inetaddressipaddress=inetaddress.getbyname (IP);if (ipaddress==null) { returnmac_s;} Networkinterfacene=networkinterface.getbyinetaddress (ipAd
The next evolution of the Wi-Fi standard, 802.11ac, will provide faster wireless connection speeds and higher data transmission rates, which will play a role in promoting network video browsing and uploading and downloading large-capacity files. Although wireless technology is booming, it cannot completely replace wired Ethernet. Analysts pointed out that the cost of Wired connection is relatively low and will still be favored by the market.
Market re
In the preceding correspondence, the hash function is representedHash (x) = x % 10. That is to say, to give a three-digit number, weTake the last bit of itAs the hash value of the three-digit number.
Hash Tables are widely used in computer science. For example:
For more information about how to broadcast packets with a small horn (Ethernet and Wi-Fi protocols)
Checksum in the IP protocol: see my best effort (detailed description of the IP p
Background:At present, there is a JZ2440 board, before there is a complete set of development environment, due to the virtual machine failure needs to build a new server side, so this record building stepsEnvironment:Ubuntu16.4VMWare 12Advance Condition:Install the Ubuntu virtual machine in accordance with the custom steps, then follow the steps below to set up the VMware Ubuntu pc.1.VMWare part1.1 from edit, open the Virtual network editor as follows: VMnet0 Use bridge mode, this network por
Use shell scripts to convert the wifi mode (STA and soft AP) in linux, wifista
Reprinted please indicate the source: http://blog.csdn.net/hellomxj1/
Function: converts the Wi-Fi STA and AP functions in linux.
Implementation results: 1. Add the wifi password account add_wifi_account;
2. The script wifi_start started in wifi
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