scenario: write an order (order master record and order detail record) json backend service layer has added api order_master func: add order_detail func: add ask whether the detail record in json is inserted by controller ca...
there are several problems in the process of learning architecture: some Service layers will call other Dao layers, for example, UserService will call UserPositionDao UserBookDao some Service layers will call other Service layers, for example, Use...
there is a class that has a lot of properties. Now I have a lot of other roles. Different roles use different fields. What design pattern do you use? ...
each person starts the game with a different Rank (a total of 14 Rank) and selects two people to answer the question pk,. How to design this algorithm? suppose that after I click to start the game, I send my request to enter a game to the server, and ...
if the picture is a template, sometimes you want to judge and then show or not show some elements name can be operated in the template engine? or can we only use js to hide and show after rendering, or define an empty variable to concatenate and then d...
can webpack HRM hot updates print out the time it takes to update each change on the console? wants to know how long it takes to update each change so that it can be optimized. And how long it took to start it for the first time. Excuse me, where can I ...
has been doing the traditional business system, these days suddenly think of a question? Is the traditional business system if two users log in to the business system at the same time? If you modify a certain data in the system at the same time, will the...
TA card, the layout of circular output is the same, only a few words vary according to the TAB card clicked my judgment is based on the current ID value of the tab card, which cannot be obtained if it is put into the loop body. When is put on the out...
recently do an e-commerce project, the development process wrote that the code has a lot of redundancy, write to this piece of function and found the same as the previous piece of code from writing a code, resulting in code duplication. Ask everyone how ...