cfna number

Regular Expression of phone number (mobile phone number, 3-4 area code, 7-8 live video number, 1-4 extension code) (\ D {11}) | ^ (\ d {7, 8}) | (\ d {4} | \ d {3})-(\ d {7, 8 }) | (\ d {4} | \ d {3})-(\ d {7, 8 }) -(\ d {4} | \ d {3} | \ d {2} | \ d {1}) | (\ d {7, 8 }) -(\ d {4} | \ d {3} | \ d {2} | \ d {1}) $) Matching format:11-digit mobile phone number3-4-b

The C language implementation of daffodils prime numbers prime factor decomposition, and daffodils vb Recently, I flipped through the C language textbooks and read three interesting small programs, including: search for "Daffodils", judge whether a number is a prime number, and perform prime factor decomposition on a number. I want to put these three items in a

First, look at what the Hyper-threading conceptHyper-Threading technology is the use of special hardware instructions, the two logical core simulation into two physical chips, so that a single processor can use thread-level parallel computing, and thus compatible with multi-threaded operating systems and software, reduce the idle time of the CPU, improve the efficiency of the CPU.Hyper-Threading Technology is a CPU executing multiple programs at the same time to share a CPU resources, in theory,

Title Description: Write the program, the output string of uppercase letters, lowercase small mother and the number of other. If there is a string "Helle, this is A test textfile.123456, Tannk you!!", the number of uppercase letters: 3, lowercase letters: 29, the number of other characters: 18.Here are four algorithms, the first of which is a good understanding,

Note: This part of the content is relatively basic, mainly to analyze several confusing OpenMP functions and understand them. (1) determine the number of parallel regions: Here, let's review the determination of the number of threads in the parallel area of OpenMP. For a parallel area, there is a team thread to execute. How many threads should be allocated for execution? The

Php format number: Add 0 to complement the front when the number of digits is not enough, php format number: Add 0 to complement the front when the number of digits is not enough Instance first, and then explain PHP code $ Var = sprintf ("% 04d", 2); // generate four digits. If not, add 0.Echo $ var; // resu

(i) Conceptual ① Physical CPU Number of CPUs on slots in actual serverNumber of physical CPUs, several physical IDs can be counted ② Logical CPU /proc/cpuinfo used to store CPU hardware information.The information content lists the specification of processor 0–processor N respectively. Note here that n is the logical number of CPUsIn general, we think that a CPU can have multi-core, plus Intel's Hyper-T

These problems can be solved using an auxiliary array, also known as an accompanying array. 1. Prime Number Evaluate the prime number: sort the integers in a range starting from 1 in ascending order. 1 is not a prime number. First, sieve it out. In the remaining number, select the smallest

the relationship between number of CPUs, kernel number and number of threads Number of CPUs: refers to the physical, as well as hardware on the core number; The kernel number: logical, simple to understand as the logical simulatio

Js randomly generates name, mobile phone number, ID card number, bank card number [Implementation Code], js bank card During development and testing, you often need to enter the name, mobile phone number, ID card number, and bank card nu