how to backtrack phone number

Digital Judgment Method: isNaN () function The test () method determines whether the string matches the contents of the regular expression, and returns a Boolean value (True/false) Verify that the Chinese name function ischinaname (name) {var pattern =/^[\u4e00-\u9fa5]{1,6}$/; return pattern.test (name); //Verify the mobile number function Isphoneno (phone) { var pattern =/^1[34578]\d{9}$/; ret

In the original: Android system get IMEI number Mobile number IMSI numberSource code: Http://www.zuidaima.com/share/1550463673584640.htmFirst, get IMEI numberTelephonymanager telephonymanager= (Telephonymanager) This.getsystemservice (Context.telephony_service);String Imei=telephonymanager.getdeviceid ();Permissions Required:Second, get mobile phone numberTelepho

1 Private StaticSimpleDateFormat DateFormat =NewSimpleDateFormat ("Yyyy-mm-dd HH:mm:ss"); 2 3 /**4 * Get the value of a cell5 * 6 * @paramCell7 * @return8 */9 Public StaticString getcellvalue (cell cell) {TenDecimalFormat DF =NewDecimalFormat ("#"); One if(Cell = =NULL) A return""; - - if(Cell.getcelltype () = =cell.cell_type_string) { the returnCell.getstringcellvalue (); -}Else if(Cell.getcelltype () = =Cell.cell_type_boolean)

/* Email verification modified by helensong */-(bool) isvalidateemail :( nsstring *) email {nsstring * emailregex = @ "[A-Z0-9a-z. _ % +-] + @ [A-Za-z0-9. -] + \\. [A-Za-Z] {2, 4} "; nspredicate * emailtest = [nspredicate predicatewithformat: @" Self matches % @ ", emailregex]; return [emailtest email];} /* Verify the mobile phone number modified by helensong */-(bool) isvalidatemobile :( nsstring *) mobile

Ask to avoid the problem that the xls file phone number exported by phpexcel and the ID card are displayed in scientific notation! Nbsp; phpexcel is used for export in recent projects. it is good to use, but there are several headaches, that is, when the exported data column contains nbsp; 013434342333, 053482371284, 4222131231231231231 ask to avoid the problem that the xls file

On the phone to open QQ, and then we click on the QQ panel "message" and then click on the "Subscribe number" button, details as shown in the following figure. Okay, then, on the open, go to the list of subscription numbers, and then we find the "Find" button. After entering the discovery we can search and also see the following products recommended by the subscription

the penultimate start position. length If this parameter is set and is positive, the string length of the substring being replaced is indicated. If set to negative, it represents the number of characters at the end of the substring to be replaced string . If this parameter is not provided, it defaults to Strlen ( string ) (the length of the string). Of course, if it length is 0, then the function is where it wi

-(BOOL) Checkidentitycardno: (nsstring*) Cardno{if (cardno.length! = 18) {return NO;}nsarray* Codearray = [Nsarray arraywithobjects:@ "7", @ "9", @ "10", @ "5", @ "8", @ "4", @ "2", @ "1", @ "6", @ "3", @ "7", @ "9", @ "10", @ "5", @ "8", @ "4", @ "2", nil];nsdictionary* checkcodedic = [nsdictionary dictionarywithobjects:[nsarray arraywithobjects:@ "1", @ "0", @ "X", @ "9", @ "8" , @ "7", @ "6", @ "5", @ "4", @ "3", @ "2", Nil] Forkeys:[nsarray arraywithobjects:@ "0", @ "1", @ "2", @ "3", @ "4",

JS implementation of mobile phone number and identification number check

digits[1], digits[2] ...Func is a lambda expression:lambda x, y: [pre+sub for pre in X for sub in Dic[y]]. It contains a list-derivation. Equivalent to a function:1 def func (X, Y): 2 Res=[] 3 For in X:4 for in dic[y]:5 res.append (pre+sub)6 return Res In the reduce function, the result of the last calculation is a new x. Until iterable (here is digits) the iteration ends.3) Backtracking method. The solution space of the problem is organi

15. Phone number question score: 10/discount: 0.8 Business units need phone numbers that are easy to remember. There are some ways to make phone numbers easier to remember. For example, a phone number can be written as a word or p

PHP mobile phone number, local query program code. This article summarizes two commonly used mobile phone home location query programs. one is to use APIs to call third-party interfaces, one is to use our own mobile phone database to query and then judge the mobile phone. Th