for example, if there are two Boolean variables amenb, respectively, when b=true returns acentrology false, it returns! a, how to implement it with simple operation? how should I write a xxx b xxx? is actually a question of how to: true true f...

^ _ [Amurz] {2jue 10} $ is there a problem with this regular expression? see that no one writes that on the Internet. [Amurz] is all of [a-zA-Z]....

now the question is how do I add the selection effect and does the VUE scaffolding used by the selected items have a big idea? Personally, I feel that there is something wrong with this data. It can t be realized at all. ...

the map of Tetris is implemented in a two-dimensional array, and squares are also implemented in arrays, but I just don t understand how maps interact with squares. is how to know where the square is on the map. Besides, although the two-dimensional ...

I would like to ask the bosses here, the graduate students of Beijing Forestry University, what are the opportunities after graduation? Is it easy to find a job? I hope the bosses will answer, thank you very much! ...

whether the data transmitted by socket needs to be encrypted ...

this is an algorithm for calculating palindromes less than 100,000 primes written with CPP . -sharpinclude <iostream> using namespace std; int main() { int input_num=100000; int pp_count=0; for(int each=2; each<=input_num; eachPP)...

for example, if there is a set of numbers such as 1, 2, 5, 7, 11, 14, how can Filter come up with two sets of numbers: [1, 2] and [5, 6, 7, 7]? ask for advice ...

I was bored on the subway. I wanted to write code. I wanted to find a code editor like webstorm. then I searched for a long time, but I couldn t find a suitable one. I just found a codeanywhere, because I haven t experienced it yet, but I still want ...

the original rule is as follows [1-9] {1} [0-9] {3} now I want to rule out the result of 2035. How do I write it? because I m in a hurry, I can t think for myself. Regularity is my weakness. Thank you! ...

big head. ...

generate the corresponding loop based on the given number. If 2 is given, a double cycle is generated, and 3 is a triple cycle if 3 is given, then for (let i = 0; i < arr.length; iPP) { for (let j = 0; j < arr.length; jPP) { ...

there is a set of numbers, for example, 3, requires that the sum equal to 3 is selected from this group of numbers (3 added numbers). For example, the three added numbers cannot be the same (for example, 1: 1, 1: 1), and there is no order requirement fo...

I am doing the Titanic test and found that the meaning of such a code is not quite clear 1 Why is there a number in the first one, please tell me what does it mean 2 Why? + means to repeat what does it mean by using two 3 regular expressions? Thank y...

for example, CPP writes a function to find the maximum value Please enter the code int max(int x,int y) { return (x>y)?x:y; } at this point, if the argument is floating-point, you need to define a function version . float max(float x,float y) { r...

the cPP process starts the jvm virtual machine and gets the java-related class methods (using FindClass ). If only one class name is successful, but if there is a package, the call will fail. The related code is as follows: MyTest.java package com; ...

now I have encountered a statement that cannot be written when designing a mysql article comment section that encounters a MySQL statement. Look at the table first: the last result I want is: Zhang San replied to Li Si: the article is very good ac...

mongodb involves updating multiple tables and has no transaction. How to deal with it ...

client and server communication, client network outage, power outage, why the server can not independently detect client disconnection (without heartbeat mechanism). ...

how did you get this value? Is there any mathematical basis? ...