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C++ Study notes -- Dark horse programmer
C++ Basic knowledge
2022-06-28 08:03
views 47
Java Realize the file search under the specified directory
Java Get started finding files in the specified directory Java It is relatively simple to realize the file search function , There are mainly the f...
2022-03-11 09:42
views 14
Why is PHS delisting ?
Cheap and good “ PHS ” The main reason for delisting , One is because “ PHS ” Their monthly rent is too cheap , Let other mobile operators have no...
2022-02-08 22:36
views 38
utilize idea yes mysql Add, delete, check and modify
Import jar Package mode import java.sql.*;public class jdbcdeno1 { public static void main(String[] args){ // (" link url+/ Database name...
2022-02-04 10:25
views 16
Dynamic memory management analysis and understanding
1. Why is there dynamic memory allocation * Dynamic memory is opened up in the heap * The way we have mastered to open up memory is to directly de...
2022-01-31 23:52
views 29
Program exercises on circular statements
calculation n factorial int main(){int i=0;int ret=1;scanf("%d",&i);for(i=1;i<=n;i++){ret=ret*i;}printf("%d\n",ret);return 0;} calculation...
2022-01-16 15:54
views 20
network security ——sql Injection judgment
? Parameters can be passed sql Numerical injection 1. Judge the injection point Numerical injection : ?id=1 and 1=1 , ...
2022-01-03 17:05
views 45
C language --- Novice pointer (2)
Through the previous article, we have a basic understanding of pointers , I see. It's just something with an address , But the use of relative poi...
2021-12-23 20:59
views 21
TCP Three handshakes and four disconnections
seq: Initial serial number three handshakes first : When establishing a connection , Client send SYN package ( Synchronization sequence number )SYN...
2021-12-04 18:50
views 18
Python project :endswith Function example of (1)
describe : Determines whether a string ends with a specified character or substring Python endswith() Method to determine whether a string ends w...
2021-11-11 13:42
views 19
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