c print file to stdout

Python standard library: built-in function print (* objects, sep = '', end = '\ n', file = sys. stdout, flush = False), pythonsys. stdout This function is used to format and output an object in a string representation to a stream file object file.

In general, the sys. stdout function is similar to the file output function fprintf in C ++. Next, let's take a look at the Code: >>> Import sys >>> temp = sys. stdout >>> sys. stdout = open ('e: \ pythonCode \ 1.txt ', 'w') # Note: dual \> print 1

When a C language program is started, the operating system environment is responsible for opening three files and providing pointers to these three files to the program. The three files are standard input (stdin), standard output (stdout), and

The code, connection information, and annotations in the ELF file are stored in sections (section) and contain a Header table (section header). For each section, there is a table entry in the section Header table (section Header table

Transferred from: http://www.codingpy.com/article/why-print-became-a-function-in-python-3/In Python 2, print is a statement (statement), and in Python 3 it becomes a function. Many Python users ask, why is Python 3 turning print into a function?

This article is based on Python2.7 and describes several common stdout redirection methods. Obviously, these methods also apply to standard error redirection. You can learn from python. I. Background In Python, file

Detailed explanation of several standard output redirection methods in python and python redirection I. background In Python, file objectssys.stdin,sys.stdoutAndsys.stderrCorresponding to the standard input, standard output, and standard error

First, IntroductionLOG4J is an Apache open source project, by using log4j, we can control the destination of log information delivery is console, file, GUI component, even socket server , NT Event recorder, UNIX syslog daemon, etc. We can also

Recently made a project, want to print different logs to different files, configured as follows: Log4j.rootcategory=debug, stdout Log4j.rootlogger=debug, stdout, FILE # # # # stdout # # # log4j.appender.stdout= Org.apache.log4j.ConsoleAppender Log4

Directory Directory preface software Environment Knowledge Subprocess Popen Constructor constructor Class Popen parameter args calling program call shell instruction Stdinstdoutstderr real-time fetch subroutine output one time get all output of