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catalogue 1. Bit segment       1.1. What is a bit segment       1.2. Memory allocation of bit segment       1.3 cross platform problem of location section       1.4 application of bit segment 2. Enumeration       2.1 definition of enumeration type       2.2 advantages of enumeration       2.3 use of enumeration 3. United       3.1 de ...

File class effect The File class can create an object location File: delete, obtain the information of the text itself, and so on( package com.itliuxue.d2_recursion; public class RecursionDemoc03 { public static void main(String[] args) { System.out.println(f(1)); } public static int f(int n){ if(n == 10){ ...

In this article, let's take a look at the file upload service in {Gin}. Create project mkdir ginupload && cd ginupload go mod init ginupload go get -u github.com/gin-gonic/gin touch main.go We create a "ginupload" directory to store code, and use "go mod" to manage dependencies. Then, add "gin" as a th ...

I Question: In our daily development, we may occasionally encounter operations that need to be in the loop (such as adding or modifying). If we directly use the for loop to traverse, it will lead to Abnormal error reporting: java.util.ConcurrentModificationException: null Case: In the official document, ConcurrentModificationExc ...

1, Experimental topic Network conference program based on IP Multicast 2, Experimental purpose Referring to the LAN IP multicast program in Appendix 3, design a network conference program with graphical interface (just realize the text multicast mode). 3, Overall design 1. Experimental principle IP Multicast (also known as multiple access ...

catalogue 1, Concept 2, Create an instance of a class (1) Common constructors 1. Constructor 1 (public File(String pathname)) 2. Constructor 2 (public File(String parent,String child)) 3. Constructor 3 (public File(File parent,String chile)) (2) Path 1. Relative path 2. Absolute path 3. Path separator    ①. There are differ ...

Topic 1: Title Description Given the length of 4 ＾ sticks, if there are 3 ＾ sticks in them, they can form a TRIANGLE and output ＾ TRIANGLE; If they cannot form triangles, but there are 3 ＾ sticks in them, they can form degenerate triangles (the sum of any two sides is greater than or equal to the third side, but not triangles), output ...

1. Personal information can be stored in the address book Such as: name, gender, telephone number, address, etc. 2. Modify the information of the designated person; 3. Delete the information of the designated person; 4. Find the information of the designated person; 5. Add information; What is advanced edition The so-called advanced addr ...

preface In this section, we will describe and introduce the general timer function of STM32, and also summarize STM32 (VI) and STM32 (VII) ---------------------— catalogue 1. Introduction to general timer 2. Timer initialization function 3. PWM wave ---------------------— I Introduction of timer ------- 1. What is a universal timer? ...

catalogue Multi file structure and compilation preprocessing commands General organization of C + + programs Example 5-10 multi file project External variable External function Restrict variables and functions to compilation units Standard C + + Library Compilation preprocessing l #include include instruction l #define macro definit ...