nsu libraries

Dir function to view the properties of an objectThe use of the method is simple, for example, the OS type, in the Python command Window input dir (' OS ') to view the properties of the OS moduleOpen cmd Command WindowEnter Python (note: The computer needs a Python environment and the Python environment variable is configured)Enter the dir (' os ') commandHow do I see the help document for a property of an object?To view the ' OS ' Split property, you can use __doc__, using the method print (' OS

-Pthread_mutex_unlock (mutex);//Unlock the Mutex -Pthread_cond_signal (cond);//Wake up a therad whick are waiting for the cond -printf ("After add val:%d and wake-one zero thread for check\n", Val); -Sleep (1); -} inPthread_exit ((void*) 0); -} tointMain () { +pthread_t T_add, T_zero; -Pthread_cond_init (cond, NULL); theif(Pthread_create (t_add, NULL, Thread_add_run, NULL)) { *return0; $}Panax Notoginsengif(Pthread_create (t_zero, NULL, Thread_zero_run, NULL)) { -return0; the} +Pthread_join (T_

execute the SQL command when executing the query, pay attention to the security of the SQL statement, C=conn.cursor ()# never do this--insecure!Symbol = ' Rhat 'C.execute ("SELECT * from stocks WHERE symbol = '%s '"% symbol)?# do this instead, note that there is only one element in a tuple followed by a comma#sql语句中的替换符为?t = (' Rhat ',)C.execute (' SELECT * from stocks WHERE symbol=? ', T)Print (C.fetchone ())?# Larger example that inserts many records at a

extern from "Hyphen.h": ctypedef struct Hyphendict:pass hyphendict* hnj_hyphen_load (char* filename) . pyx Interacting with C + +: SWIG, SIP, boost::p Ython, Cffi Advanced Network Programming XML-RPC: Slightly RPyC: Slightly Tkinter Pygtk/pygobject Pyqt4/pyside Tkinter Modal: Global/Application-level/window-level/None WxPython OpenGLPython programming: Creating h

1 jar package closer to dynamic link libraryJava at compile time, although the import of other jar package, but it does not copy the other jar in the source code into its own class file, it just uses the name in the jar package.At the time of execution, both your own and dependent jar packages are loaded into the JVM, and the link is completed before execution, which is more like a dynamic-link library.2 JVM Find jar PackageVarious class loader go to the specified directory to find the jar packa

Using MSMTP, an SMTP client that is lighter than sendmail,postfix. Use your own QQ mailbox (163 ...) e-mail, very suitable.Mac installation is simple, in a word: Brew install MSMTP　　There are also two files to configure:~/.MAILRC:~/.MSMTP:Official send:Received Luo:PHP sent, with shell_exec and other functions, do not have to say, the command of course support more parameters, detailed reference to the relevant documents or terminal MSMTP--help view.　　Mac command line Email "with PHP (Shell_exec

Threejs Scene View-Several interactive event libraries help you to view your scene easilyThe beautiful Life of the Sun Vulcan (http://blog.csdn.net/opengl_es)This article follows "Attribution-non-commercial use-consistent" authoring public agreementReprint Please keep this sentence: Sun Vulcan's Beautiful Life-this blog focuses on Agile development and mobile and IoT device research: IOS, Android, HTML5, Arduino, Pcduino , Otherwise, the article fro

The app. config should be placed in the root directory of the solution. The specific process is as follows:The first step: you should download the Log4net.dll and introduce it to your project, download the attachedSecond step: need to configure the relevant configuration file app. config or Web. config, as the name implies for normal application configuration filesThe configuration file for App.config,asp.net is Web. config. The configuration for log is as follows:The third step: the project Ass

Recently in a class library, written in C #, in order to debug the need for convenient log output, and then found log4net this tool for log output;Because call this class library is C + +, and I am not very familiar with C + +, so can not be configured in the App. config or Web. config log4net parameters, in addition to Google or Baidu, also did not find a good solution;Finally found a Baidu library of a detailed log4net document to see, their own reference to other information toss good.1, crea

https://blog.csdn.net/Haoran823/article/details/71657602 methods for importing third party libraries using CMake in Clion Recently tried using the Clion IDE to write C + + programs. Because Clion engineering is built on CMake, importing a third-party library requires configuration in CMake files. The process of using CMake to import a Third-party library is documented here. The configuration information for CMake is written in the CMakeList.txt file.