the problem we are facing now: opening the home page of the website requires statistics of a lot of tables, and each temporary summary will be very slow. if you do a data statistics function alone, you will need a lot of extra workload and redundant d...
recently, I have done a lot of financial projects and found that sometimes there are always some small loopholes, leading to data confusion, such as calculating dividends and credits for users according to certain rules. If the calculation is wrong, the...
Software process models include waterfall model, incremental model, evolution model (prototype model, spiral model), fountain model, construction-based development model and formal method model. which software process model is used in our project deve...
Why should the template pattern in the Java design pattern use abstract classes instead of interfaces? ...
is a front-end project, and the development framework uses vue,. Can I draw a class diagram? How do you draw it? ...
as mentioned in the question, I am a freshman this year. I have just finished learning c language, c primer plus after reading the structure, and now I am learning assembly. in addition, because the school has set up a course on digital electricity (comp...
document.getElementById(el).innerHTML=":" document.getElementById(el).className="a" although the first sentence can take effect, it is certainly not a normal method. ask how to get the chrome extension popup page dom ...
it doesn t seem to work like this. 1D represents the increment of the past 24 hours, not from zero today. sum(increase(sms_count[1d])) also, how can this query be written to display increments according to the range selected by grafana s time range?...
<script> test() test() test() function test(){ setTimeout(function () { console.log( test ) },2000) }`` < script> print at the same time after 2000 milliseconds, how can I print every 2000 milliseconds ...
ask everyone Filter the array (in a relatively simple way) I want Filter to remove objects with the same id in all objects (no matter what the name is as long as the id is the same), that is, to ensure that the id of each object is different. If there...
in Chrome 65.0.3325.181 (official version) (64-bit), the loop attribute of the audio tag does not take effect. Write the corresponding logic and report an error after execution. the code is as follows: html <audio id="backgroundAudio" ...