Programmer Group

po model design idea 　　Page Object   The mode is mainly to design each page as a class, which contains the elements to be tested in the page (buttons, input boxes, titles, etc.), so that the page elements can be obtained by calling the page class in Selenium test page, so as to avoid changing the test code after the page element ID or p ...

1. Reflection The program is used to process data. Text and characteristics are data. The program itself (class definition and class in BLC) is also data. The data about the program and its type is called metadata and stored in the assembly of the program. The behavior of a running program to view its own metadata or the metadata of other ass ...

background In performance test, sometimes an API request can only be processed once for the same data (such as user registration), or can only be executed sequentially. Multiple users are not allowed to operate on the data at the same time. Different data can be requested concurrently. Therefore, data sampling needs to be handled to avoid mult ...

PAT class a 1119 pre - and post order Traversals Suppose that all the keys in a binary tree are distinct positive integers. A unique binary tree can be determined by a given pair of postorder and inorder traversal sequences, or preorder and inorder traversal sequences. However, if only the postorder and preorder traversal sequences are given, ...

preface A friend's school in the list is Xiamen University. When I remember the agreement between my roommate and me in senior three, I wanted to go to Jimei University, and my friend wanted to go to Xiamen University. As a result, neither of us was admitted to hahaha I said to blog more before, but a sudden project disrupted my plan. Unt ...

summary The usage and practice of permission system based on Spring Security and JWT have been discussed in the previous design of permission system based on Spring Security and JWT. This paper further practices the multi system single sign on (SSO) and JWT permission control functions based on Spring Security Oauth3. After all, this requirem ...

@Service public class HelloService { @Autowired(required = false) public HelloService(ApplicationContext applicationContext) { // 1⃣️ } @Autowired(required = false) public HelloService(Environment environment) { // 2⃣️ } } Tell me, which constructor will Spring choose to instantiate HelloService? one ⃣ ♪ or 2 ⃣ ️ ？ Th ...

sql execution statement flow analysis The whole processing flow is in exec_simple_query function. The code structure is as follows: /* * exec_simple_query * * Execute a "simple Query" protocol message. */ static void exec_simple_query(const char *query_string) { ... //Original syntax tree acquisition /* * Do basic parsing of the quer ...

Yesterday, I finally turned over the weekly magazine of big man Ruan. It can be said that most of the resources collected in my bookmark folder came from the left ear mouse and big man Ruan. The weekly magazine was turned over, but looking back, there was not much. Is it my curiosity problem? I was just satisfied when I found something new. Now ...

subject Link: https://leetcode-cn.com/problems/interleaving-string Given the three strings s1, s2 and s3, please help verify whether s3 is composed of s1 and s2 interleaving. The definition and process of interleaving two strings s and t are as follows, in which each string will be divided into several non empty substrings: s = s1 + s2 + ... ...