Programmer Group

  Here is only for personal notes. The content and code are mostly from the 100 day course of GitHub Luo Hao God. The link is attached below, which is infringed and deleted~ GitHub - jackfried / python-100-days: Python - 100 days from novice to master 1, Use of functions and modules (1) Define function: use the def keyword to define a f ...

2021 "Green League Cup" Chongqing University Student Information Security Competition - Light1ng team Writeup For other directions, please refer to pdf:https://wws.lanzoui.com/iWk1ovo0eaj Password: Le1a Misc Misc1: check in 1 The title gives a string of base64 codes Decoded flag: flag{c54ce9d7b4e17980dd4906d9941ed52a} Misc2: ...

Static members: Non static classes can contain static methods, fields, properties, or events. Static members can be called on a class even if no instance of the class is created. Static members are always accessed by class name, not instance name. Only one copy of the static member exists (regardless of the number of instances of the class cre ...

C language and python are often confused, especially I can't help adding a semicolon after Python... Just make a note for myself to save forgetting... (from the little turtle) 9, String Strings are widely used and extremely convenient: '''Determine whether it is palindrome number''' >>> x = '123454321' >>> 'Is the palin ...

C language and python are often confused, especially I can't help adding a semicolon after Python... Just make a note for myself to save forgetting... (from the little turtle) 7, List list The list contains multiple data types at the same time. The subscript index starts from 0. The subscript index value of the last element is - 1, and so ...

Follow Freshman Meng Xin can read the c language version (I)_ Why_does_it_work blog - CSDN blog Then I want to talk about the data data During initial programming, after we write the header file, we operate the data through multiple functions and a main function or through a main function. What is the data? As mentioned in the previous arti ...

1. In the experiment, use the debug function of IDE to set breakpoints for the new statements of examples 6.4 and 6.5, use step into / step over to track the execution sequence of subclass object instantiation (initialization), and summarize the process Example 6.4 //Example 6.4: explicitly using super to call the constructor of the parent cl ...

summary         In our daily work, we often encounter the need to extract the information in xml files and convert it into entity classes. Combined with our own work experience, we make the following summary, which is convenient for people and ourselves. Code example xml format: <?xml version="1.0" encoding="utf-8"?& ...

1. (1): judge whether open parentheses and closed parentheses in an arithmetic expression are paired. Implementation code: #include <stdio.h> #include <stdlib.h> #define MAXSIZE 100 typedef struct{ char data[MAXSIZE]; int top; }seqstack; int MatchCheck(char str[]){ seqstack s; int i = 0; s.top = -1; while (str[i] != '\0'){ ...

1.IOC control reversal IOC theoretical derivation Previous methods 1. First write a UserDao interface public interface UserDao { public void getUser(); } 2. Then write Dao's implementation class public class UserDaoImpl implements UserDao { @Override public void getUser() { System.out.println("Get user data"); } } 3. ...