seagate number

Today wrote a page, there is an effect, mobile phone number in the middle of 4 digits is replaced by the asterisk, this effect is very simple, the implementation of a variety of methods, can be a string interception can also use regular ^_^The effects to be achieved are as follows:135****2627js Code: Method ①: String intercept + stitching var phone = ' 13500001111 '; Phone.substr (0, 3) + ' * * * * + PHONE.SUBSTR (7, 11);　　The principle of this met

Physical CPU: The physical CPU is relative to the virtual CPU concept, refers to the actual existence of the processor, is that we can see, the touch of the CPU, is inserted in the motherboard above.Physical Core: The number of physical cores that are included in the CPU, such as the dual-core CPUs we normally call, single-core CPUs. In the entry for the/proc/cpuinfo file below the Linux system: 1. How many different physical IDs have a physical CPU.

086-area code-number-Ext^086-[1-9][0-9]{1,4}-[1-9][0-9]{4,7}-[0-9]{3,4}$ 2G's cell phone number is almost all 13. The code is as follows Copy Code $mobilephone =trim ($_post["Smmobilephone"]);Regular verification of mobile phone numberif (Preg_match ("/^13[0-9]{1}[0-9]{8}$|15[0189]{1}[0-9]{8}$|189[0-9]{8}$/", $mobilephone)) {Validation through}else{Phone

The specific topic is this: Select n numbers from the 1--9, make up the number of n digits that are not duplicated, numbering from small to large, and when you enter any number m, you can find the number corresponding the number. such as n=3,m=213. output: [123 (1), 132 (2), 213 (3), 231 (4), 31

Given a sequence with a length of $n $ and a constant $k $, the median of this sequence is the number of intervals $k $. The median of a sequence that is long $m $ is defined as the number of $\lceil M/2 \rceil$ after this sequence is sorted from small to large.SolutionIt is difficult to think directly about the interval that the median is equal to $k $, and we turn to the

Question:Sometimes people may wonder why ABC... is on the keyboard of the phone, especially before the birth of the mobile phone. In fact, in addition to sending text messages, these letters are also useful in making phone numbers easy to remember. This is a popular feature in the United States. For example, you can order a pizza from GINO by dialing 310-GINO, GINO corresponds to 4466. Ha, have fun. Now the question is, if you give a phone number such

Calculates the number of lines of code and the number of lines of code under all packages in a project. Sometimes, when archiving a project, we will inevitably encounter statistics on the number of lines of code. In this case, we can use a piece of code to directly calculate the number of lines. Below is an example cod

Hdu3709 digital dp (self-balancing number), hdu3709 digital dp number Http://acm.hdu.edu.cn/showproblem.php? Pid = 1, 3709 Problem DescriptionA balanced number is a non-negative integer that can be balanced if a partition is placed at some digit. more specifically, imagine each digit as a box with weight indicated by the digit. when a distance is placed at some d

OJ question: click here ~~ Question Analysis: output the k-th prime number The purpose of posting such a simple question is not pure The basic idea of using the sieve method to calculate the prime number is to arrange the positive integers in a certain range from 1 in ascending order. 1 is not a prime number, and it is first screened out. In the remaining

The Number of groups in the sequence that meet the requirements of Ai Http://acm.hit.edu.cn/hoj/problem/view? Id = 2275 Number sequence Source: SCU Programming Contest 2006 Final Time limit: 1 sec Memory limit: 64 M Submitted: 1632, Accepted: 440 Given a number sequence which has N element (s), please calculate the

for unsigned integer variables of one byte (8bit), the number of 1 in the binary representation is obtained. Solution One :In addition to the second method , such as 10100011 divided by 2 to 01010001 more than 1. When the second result is 1 o'clock, the number of 1 in the binary will be reduced by one, for example,01010001 divided by 2 is more than 00101000 1. When divisible by 2 o'clock, the

Import Java.util.Scanner;public class Huiwenshu {public static void Main (string[] args) {Scanner input = new Scanner (system.in);char c = ' Y ';Initialize c for Y and prepare for the following loopwhile (c = = ' Y ') {while (c = = ' Y ') {System.out.println ("Please feel free to enter an odd number greater than three bits");Palindrome number is a singular number

The floating-point number is usually expressed as N=S*RJ S called the mantissa, can be negative, j is called the Order can be negative. R is the base and is taken in multiples of 2 in the computer.In order to improve the accuracy of the computer, the normalization operation is assumed that n=11.0101 is normalized as n=0.110101*210 representation, because the normalization makes the representation of the floating-point

The maximum number of concurrent users of a system is 1100, how can the system to calculate the maximum number of users supported.The user performance requirements are as follows: Support 1 million registered usersPerformance Requirements Analysis:1, according to the requirements of users, the system to support 1 million users, wherein the performance of the machine configuration? What is the peak value? Ba

Round Numbers Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 9525 Accepted: 3420 DescriptionThe cows, as you know, has no fingers or thumbs and thus is unable to play Scissors, Paper, Stone ' (also known as ' Rock, Paper, Scissors ', ' Ro, Sham, Bo ', and a host of other names) in order to make arbitrary decisions such as who gets to be Milked first. They can ' t even flip a coin because it's so hard to toss using hooves

Php verifies the mobile phone number and verifies the mobile phone number. Php verifies the mobile phone number. it is common sense to verify the mobile phone number. Chinese mobile phone numbers start with the number "1" and then use "0 ~ 9 "10 digits composed of 11 digits

This is seen in the geeksforgeeks when a problem, very good, the topic isGiven a number system with only 3 and 4. Find the nth number in the number system.First few numbers in the number system Are:3, 4, 33, 34, 43, 44, 333, 334, 343, 344,433, 434, 443, 444, 3333, 3334, 3343, 3344, 3433, 3434, 3443, 3444, ...(Topic lin