Tag:b

  • Analysis of the difference between bold and strong

    Time:2021-2-5

    We all know that when we do website optimization, the article’s keyword bold optimization is of great benefit.But if you are careful, you will find that both strong and B are bold. For example, when the WordPress program is bold, the system will use the strong tag bold by default. So which is better. Now […]

  • Data structure tree (3): multiway search tree B tree, B + tree

    Time:2019-12-14

    Multiway search tree Height of complete binary tree: O (log2n), where 2 is logarithm The height of the complete m-path search tree: O (logmn), where m is the logarithm and the number of nodes in each layer of the tree M-path search tree is mainly used to solve the problem of data storage which can […]

  • Introduction to $a and $b in Perl

    Time:2019-7-19

    Even if the strict and warnings options are turned on, there are no errors or warnings in the following code. Copy codeThe code is as follows: #!/usr/bin/perluse strict;use warnings;sub test {    $a = 1;    $b = 2;    print $a, “\n”;    print $b, “\n”;}test();1; The following are the explanations of these two variables in the Perl […]

  • In-depth Analysis ofB andb in Regular Expressions

    Time:2019-4-4

    For regular expressions, B and B are somewhat confused. Maybe if you read the following blog, you will be able to deepen your understanding of B and B. From looking at the API, you can see thatB andb are boundary matchers Let’s start with the word boundary b. Want to know what the word boundary […]