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In some scenarios we may need to generate some random data, such as generating phone numbers, e-mail addresses and other data in a test environment for functional testing. Or import the production data into the test environment for simple desensitization processing. This is what I developed on the basis of dbms_random to generate:
Mobile phone number
, tick the contact you want to restore, click " Restoring the exported file is also possible.
How do you recover your address book? Mobile phone Number Recovery tutorial We also recommended the Android phone Address Book recovery method, we can see the
Looked at many times, just to sort out my understanding of the whole communication process, the following, will continue to learn to supplement the correction:When communicating using the TCP/IP protocol family, there are three key identifying information: MAC address, IP address, and port
This is the cell phone number I copied on the iOS11 system and sent to the nail.You will find that in addition to the middle of the 2 spaces, the final appearance also has a space, but when you copy it into the editor when the space is not, when you click the left and right arrow keys on the keyboard to move the cursor, you will
I don't need to analyze it professionally. I use dummies to answer questions.
This is a simulated question. Use this question as an example.
URL type: Of course, it is Class B.
Convert the IP address and subnet mask to binary, and then perform operations on them.
145.189.24.3 10010001 10111101 00011000 00000011
201710000224.0 11111111 11111111 11100000 00000000
Network
number, if the same, the explanation passed, otherwise it is invalid ID number if(Idcardlast = =Idcardy[idcardmod]) {Alert ("Congratulations passed the verification!" "); } Else{alert ("Wrong ID number!" "); } } } } Else{alert ("ID card format is incorrect!"); }}/** can only be a positive integer*/varRegNum =/^\d+$/;/** ZIP Co
Common regular Expressions Daquan, mobile phone, phone, email, ID card (the most stringent authentication), IP address, URL, date, etc., the general front of the JS verification
Find a handy matching phone and phone number method, thanks, share here, hope to help more people
Match all URL addresses and linked content
Copy Code code as follows:
$str = "
Preg_match_all ("/
echo "Var_dump ($matches [2]);
echo "Var_dump ($matches [4]);
Matching mailboxes
Cop
Verify that the account is validVerification rules: a combination of letters, numbers, and underscores. It must start with a letter and contain 4-16 characters.
FunctionCheckuser (STR ){VaRRe=/^ [A-Za-Z] \ W {3, 15} $/;If(Re. Test (STR) {alert ("Correct");}Else{Alert ("Error") ;}} Checkuser ("jiade_cnblogs");//Call
Verify mobile phone numberVerification rules: 11-digit number, starting with 1.
Funct
This article describes the PHP implementation of the replacement of mobile phone number between the number of * and hidden IP last few methods. Share to everyone for your reference, specific as follows:
$string = "13826589549";
$pattern = "/(\d{3}) \d\d (\d{2})/";
$replacement = "\$1****\$3";
Print Preg_replace
The recent project needs to filter the phone number, remove the IP number ("1790", "1791", "1793", "1795", "1796", "1797", "1799"), +86, and other prefixes, share with you.
Package com.example.offline; public class Trimnumbertest {private static final string[] IPPFXS4 = {"1790", "1791", "1793", "1795", "1796", "1797"
a coefficient, just like the circumference rate of 3.14 W. x. y. Z corresponds to the actual IP address, for example: 192.168.0.19; Link Eg:
Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> IP address = 202.186 . 13.4 So, w = 202 , X = 186 , Y =
How do I find a local IP address?
Find a local IP address for users who are using a LAN, such as a router or switch, the most common is many people through the router share the Internet, for this situation to
[Code Note] verifies the mobile phone number, email address, license plate number, and license plate number.
I. Code.
-(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. NSLog (@ "------ % d ------", [self isValidateEmail: @ "12345"])
Tags: log target width Hebrew Center Chinese close Oldboy Clickcount the number of occurrences of each IP that cracked your password in Secure.logawk ' /failed password/{h[$ (NF-3)]++}end{for (Pol in h) print Pol,h[pol]} ' secure-20161219 | Sort -rnk2| HeadCount The number of occurrences of each IP
the actual IP address, for example: 192.168.0.19; Link
Eg:IP address = 202.186.13.4
So, w = 202, x = 186, y = 13 and Z = 4
IP number = 16777216*202 + 65536*186 + 256*13 + 4
= 3388997632 + 12189696 + 3328 + 4
= 3401190660
In this way, an
The design defect of a station in the travel network of qinglv leads to a large amount of sensitive information leakage (Order/member number/name/mobile phone number/ID card number/email/address)
Qinglv Holdings Co., Ltd. (hereinafter referred to as qinglv) is a subsidiary o
]*) | ([0-9]*[1-9][0-9]*\. [0-9]+) | ([0-9]*[1-9][0-9]*))) $ "//negative floating-point number^ (-?\d+) (\.\d+)? $ "//floating-point number"^[a-za-z]+$"//A string consisting of 26 English letters"^[a-z]+$"//A string consisting of 26 uppercase letters in English"^[a-z]+$"//String consisting of 26 English letters in lowercase"^[a-za-z0-9]+$"//string consisting of a number
by 36 0!). ) a possible IPv6 address. IPV6 has been introduced to resolve the foreseeable IPv4 address exhaustion problem.As a network engineer, I recommend that you do not share your machine's public IP address with anyone. Your WiFi router has a public IP, or WAN (WAN)
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