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  Preface Before, my classmates selected tutors for postgraduate study. I helped them refer to them. I found that some teachers are very young, but the data of Google Scholar are ridiculously high (mainly citation and h-index), and even easily crush some calf guides in the ears of the population. Intuitively, this kind of data should be fal ...

When we are doing WEB automation, we generally have to wait for the page elements to load before we can perform the operation, otherwise we will report the error that the elements cannot be found, which requires us to add the waiting time in some scenarios. We usually use three waiting methods: Forced waitingImplicit waitingDisplay wait 1, Fo ...

1, Simple use ① Swap two variables # a = 4 b = 5 a,b = b,a # print(a,b) >> 5,4   let's start by swapping two variables. This method is one of the simplest and most intuitive methods. It can be written without using temporary variables or applying arithmetic operations. ② Assignment of multiple variables a,b,c = 4,5.5,'Hello ...

catalogue 1. Title Description 2. Problem solving analysis 2.1 solution 1: two dimensional matrix simulation 2.2 solution 2: directly calculate the address 3. Code implementation 1. Title Description A given string s is arranged in a Z-shape from top to bottom and from left to right according to the given number of lines numRows. For ...

💖 About the author: Hello, I'm brother cheshen, cheshen at No. 18 Fuxue road 🥇 ⚡ About - > Che Shen: the fastest time from the bedroom to the laboratory is 3 minutes, and the slowest time is 3.5 minutes (that half minute is actually waiting for the traffic light) 📝 Personal homepage: Drivers only need cars and hands, and the pressure com ...

1. Implement a decorator that determines the presence of the redis server from functools import wraps from flask import g from rmon.common.rest import RestException class ObjectMustBeExist: """The ornament is used for a Server Instance deletion check to ensure operation object must exist """ def __init__(self, object_class): ...

⬅️ preface The main reason is that the last time server12 was pulled full by one of its own train direct threads (yes... server8 was also pulled full by emm. I didn't find out at first that it was me) Live situation Later, Liu Suo told me that let me see if there are too many processes in the dataset. In this way, the utilization r ...

Continue with an advanced feature - slicing and iteration 1, List generation List Comprehensions is a very simple but powerful built-in Python generator that can be used to create lists. 1. Basic use of list generation 1. Use list(range(1,11)) to generate list: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] >>> list(range(1,11)) [1, 2, 3, 4 ...

In this article, we introduce packages in Python and learn how to use packages to build applications. Python package Suppose we need to develop a large application to handle the sales process from order to payment. This application will contain many modules. With the increase of the number of modules, it is difficult to maintain all modules i ...

  class Animal: def __init__(self, name, age, color, food): self.name = name self.age = age self.color = color self.food = food def run(self): print(f"{self.name}Running") self.get_age() self.eat() def get_age(self): print(f'{self.name}this year{self.age}year') ...