install selenium,chrome,ChromeDriver on Aliyun CentOS ECS

install selenium yum install selenium2. install chrome  yum install epel-release yum install https://dl.google.com/linux/direct/google-chrome-stable_curre
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Android Context Analysis

  • Adamin90
  • 2022-05-05 12:09:45
  • Android
Android Context 分析继承结构类图:ContextWrapper是上下文的包装类,ContextImpl是上下文的实现类,Activity是ContextThemeWrapper的直接子类。getApplicationContext都做了什么  翻看ContextWrapper源码:public class ContextWrapper&nbs
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UML class diagram-UML类图

    The UML diagram is a graphical notation used to construct and visualize object oriented systems. A class diagram in the Unified Modeling Language is a type of static structure
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SOLID principles of Object-Oriented Design-面向对象设计的SOLID五大准则

面向对象设计有五大准则,遵循这五大准则,能够使我们的代码更加健硕,易维护,易扩展。它们分别是:单一职责原则,开闭原则,里氏替换原则,接口隔离原则,依赖倒置原则。
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Redmi Note 9 5g(M2007J22C)刷TWRP,Magisk,LSPosed

## step 1 解锁手机  - [小米官方解锁工具及教程](https://www.miui.com/unlock/download.html)## step 2 刷Android10官方rom(可选)   如果MIUI版本是12.5.1(Android 11),可以选择降低到V12.5.8.0.RJECNXM(Android 10),我在Android 11上用
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Quicksort Algorithm Using Lomuto partition Scheme-Lomuo分割方案的快速排序算法

 QuickSort is another algorithm form Divide and Conquer category.It operates by breaking down large problems into smaller,more easily solvable problems.快速排序是分治算法分类中的另一种算法,它通过把大问题拆分成更小,更容易解决的问题操作。
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Merge Sort Algorithm-归并排序

Merge Sort belongs to the category of Divide and Conquer algorithms.These algorithms operate by breaking down large problems into smaller,more easily solvable problems.  归并排序属于分治算法分类,这些算法通过把大的问题拆
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Insertion Sort Algorithm-插入排序算法

Insertion Sort is a simple sorting algorithm that works the waywe sort playing cards in our hands.We sort the first two cards and thenplace the third card in the appropriate position within the first
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Selection Sort Algorithm-选择排序算法

    Selection Sort is a simple sorting algorithm that find the smallestelement in the array and swaps it with the element in the first position,then find the second smallest elemen
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Bubble Sort Algorithm-冒泡排序

    Bubble sort is an algorithm that is used to sort a list of elements,for exampleelements in an array. This algorithm compares two adjacent elements and then swapsthem if they ar
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