1 class Animal:
2 def eat(self):
3 print(“Eat”)
4
5 def drink(self):
6 print(“drink”)
7
8 def run(self):
9 print(“Run”)
10
11 def sleep(self):
12 print(“Sleep”)
13
14 class Dog
Month: October 2021
Object-oriented advanced 1
# Descriptor application
class Aoo:
def __init__(self,key,expected_type):
self.key = key
self.expected_type = expected_type
def __get__(self,instance,owner):
return
Core Data – Search Core Data Enders in Insert Sequence
Can I use internal ID variables or timestamps in NSSortDescriptor to retrieve Core Data entities in insertion order?
If there is a cleaner way, I would rather not have to create such an attri
Architecture mode: API combination
Architecture pattern: API combination Context You have applied the microservice architecture pattern and the per-service database pattern. Therefore, realizing queries that connect data from multip
OOP – package principle
There are some object-oriented engineering principles, which express a sentence: “A class should only know the contract of the class it uses as a parameter, or any internal contract it uses. “
<
UserPageRepository
/**
* It has the functions of paging and sorting and inherits CrudRepository
*/
public interface UserPageRepository extends PagingAndSortingRepository {
}
1
2
3
4
5
UserPageRepositoryTests:
<
Qt – Basic Graphics Drawing
1. Basic graphics drawingA. The key role in the Qt graphics system
QPainter–The painter in Qt can draw various foundations Graphics, with brushes, brushes, and fonts needed for drawing
QPaintDevic
Ma Yun offends the full text of the speech
Here is the full text of Jack Ma’s speech:
Thank you all for coming. I really didn’t expect that after waiting for this day for 10 years, it came so fast and so beautiful. Thanks to all those
Julia: Using distributed arrays in expressions
I am trying to generate and evaluate expressions in different processes. The expression contains the local part of the distributed array, which seems to cause problems. For example,
addprocs(
WeChat applet front end Promise package
config.js
const config = {
base_url_api: “https://douban.uieee.com/v2/movie/”,
}
export {config} http.js
import {config} from “../config”;
class HTTP {
requset({ url, method = “GET”,