A challenge: how to write a program that outputs its own source code? Writing a portable self-regeneration program is difficult, in part because of the difficulty of referencing and character sets.
Here is a classic example (it should be represented in a line, although it is self-repaired after the first execution ):
Char * s = "char * s = % C % S % C; Main () {printf (S, 34, S, 34) ;}"; Main () {printf
Write a registry to dynamically create an SQL Server ODBC Data SourceMeanings of parameters:Dbserver: host where the database is locatedDbname: Database NameDSN: Data Source NameUID: Login UserReturn Value:-1: the SQL Server Driver is not installed.-2: other errors0: Successful
Implementation functions:Int makesqlserverodbcdsn (maid, maid){Bool binstalldriver = true;Cregkey regkey;
Long LRET = regkey. Open
, Blocks_percent_used, Mount_p OINT); } } return 0;}The results are as follows:Compile: g++-g-wall Main.CPPyou can generate a a.out file, the following is run A.out and DF-output Comparison of H::/tmp/tmp$DF-h file system capacity already available for use%mount point/dev/sda79.4G6.5G2.5G the% /None1.6G 300K1.6G1% /Devnone1.6G 212K1.6G1%/dev/Shmnone1.6G 296K1.6G1%/var/Runnone1.6G0 1.6G0%/var/Locknone1.6G0 1.6G0%/lib/init/RW/dev/sda6 113G 87G 26G the%/media/Work_/DEV/SDA9 26G 23G2.
(Three if cases are considered complete, attention to problem-solving ideas)#include int main (){int count=0;Char ch;while ((Ch=getchar ())!=eof) //Until the end of file flag appears, no longer enters the loop{if (ch== ' {'){count++;}if (ch== '} ' count==0)//Before ' {', and then '} ', which does not match{printf ("does not match \ n");return 0;}if (ch== '} ' count!=0)//before having ' {', after '} '{count--;}}if (count==0)//i.e. the number of the preceding ' {' and '} ' is offset, matching the{
#include C Language: Write a program that reads the C source code from the standard input (terminal) and verifies that all curly braces are correctly paired
public class Configoperator {public string strfilename, public string configname, public string configvalue, public confi Goperator () {////TODO: Add constructor logic here//} public string ReadConfig1 (string configkey) {ConfigValue = ""; ConfigValue = configurationsettings.appsettings["" +configkey+ ""]; return configvalue; }//Get the name of the program's config file and its full path public void Setconfigname (string strconfigname) {ConfigName = Strconfigname;//Get the full path of the confi
Write routed Python code, let the Turing to play with you, feeling is not very intelligent.import osimport jsonimport urllib2class Chat(object):key = "申请的key" # turing123网站apiurl = "http://www.tuling123.com/openapi/api?"def init(self):os.system("clear")print "尽情调教把!"print "-------------------------------"def get(self):print "> ",info = raw_input()if info == ‘q‘ or info == ‘exit‘ or info == "quit"):print "- Goodbye"returnself.send(info)def send(self, i
Course ObjectivesGetting Started with Python writing web crawlersApplicable peopleData 0 basic enthusiast, career newcomer, university studentCourse Introduction1. Basic HTTP request and authentication method analysis2.Python for processing HTML-formatted data BeautifulSoup module3.Pyhton requests module use and achieve crawl B station, NetEase Cloud, Weibo, connotation of the web site4. Use of asynchronous IO modules, such as: Asyncio, Gevent, Aiohttp, Twisted, Torando5. Use and application of
community version provides all functions and performance, including addition, deletion, and rename of columns without downtime, index creation, and second primary key of the cluster set. In addition, the enterprise edition includes additional support packages and advanced backup and recovery tools.
TokuDB is a high-performance MySQL and MariaDB storage engine that supports transaction processing. The main feature of TokuDB is its support for high write
More than a year ago, I was in the internship, just on a project close to the end, followed by a big data integration project, including data collection, processing, calculation, integration and data display.And the visualization of this piece, in the early fall on my head, although this open-source gadget eventually did not as a big data visualization solution, but this is a complete completion of their own, step by step
From: http://www.dz3w.com/mcu/c51src/0079894.html
Data read/write method and source code of NAND Flash
The data in NAND Flash is bitIn memory cell. Generally, only one bit can be stored in a cell. These cells are connected to bits in 8 or 16 units.Line to form the so-called byte (X8)/Word (x16), which is the location width of the NAND device. These lines form a pageFlash has multiple structures. The NAND
In the network programming in the TCP transmission, get the socket source, how to read and write operations, the following I listed two methods, I hope you help to add1. Read and write using a byte array as a buffer1 //get the socket stream and upload the image to the server2FileInputStream fis=NewFileInputStream ("C:\\12.jpg");3 4 //gets the outp
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