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SDUT Second trial 7-2 Magic mirror and card drawing
7-2 Magic mirror and card drawing Description lately ,billow And his classmates fell in love with a game called Shenyuan , Because they all want t...
2021-12-23 15:21
views 23
First knowledge Mongdb Data query ( three )
db.getSiblingDB('cqust');var query criteria ={'sno':2019000000};var update criteria ={$set:{'body.weight':100,'name':' Wang Xiaowang '}};db.stude...
2021-04-07 18:24
views 26
C language —— String learning notes (2)
one , Reading and writing of string 1.printf And putsprintf Very familiar , There is also a function that outputs a string puts(), Its usage is a...
2021-03-26 17:59
views 31
Detailed explanation of string operation function and memory function
Realization of string operation function 1.strlen Function function : Computes the specified string string The length of . application int main(){...
2021-02-16 17:54
views 21
Key and difficult points of playing with pointer (1)
one , Character pointer 1. Two ways of writing character pointer int main(){ char ch = 'a'; char*pc = &ch; char*p = "abcdef"; // Add the first...
2021-02-08 11:15
views 30
( It's all dry goods , Novice Xiaobai must see )Python Basic knowledge !!
1.python inside %d Table number ,%s Represents a string ,%% Represents a %;2. Single quotation marks embedded in single quotation marks need escape...
2020-10-15 17:56
views 30
Big data training and sharing for good programmers mysql data type
Big data training and sharing for good programmers mysql data type , Introduction to data types • Data type setting • Column properties • Chara...
2020-09-10 16:01
views 31
Split string ( dynamic programming )(c++, daily practice )
The title is as follows : Given a string s And a set of words dict, judge s Can I split a sequence of words into spaces , Make all words in the wo...
2020-08-27 15:43
views 46
Tangyuan(glutinous rice ball) の soup
Think: character string Judge the question , utilize ABC Of ascii Code difference processing ~~~Problem Description It's the annual Tangyuan Fe...
2020-08-07 07:01
views 42
String class —— summary ,String The nature of , Memory resolution , Commonly used API
one , summary String: character string , Use a pair of "" Cause to express .String Declare as final Of , Not inheritable String Realized Serializa...
2020-06-04 12:27
views 37
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