read from stdin

1.Why?Fflush (stdin)If yes, first check the following program: # includeStdio. h>Int main (void) {int I; for (;) {fputs ("Please input an integer:", stdout); scanf ("% d", & I ); printf ("% d/N", I);} return 0;} this program will first prompt the

For C-language beginners, the fflush (stdin) function is interpreted as a system function that empties the input buffer, which is once almost half the story, with the progress of computer science, the gradual improvement in the process of learning

1. Why is fflush (stdin) incorrect?   First, check the following program:   # Include   Int main (void) { Int I; For (;;){ Fputs ("Please input an integer:", stdout ); Scanf ("% d", & I ); Printf ("% d/N", I ); } Return 0; }   This program will

1.Why? Fflush (stdin)Yes   First, check the following program:   # IncludeStdio. h>   Int main (void) { Int I; For (;;){ Fputs ("Please input an integer:", stdout ); Scanf ("% d", & I ); Printf ("% d/N", I ); } Return 0; }   This program will first

1. Why is fflush (stdin) incorrect? First, check the following program: # Include Int main (void){Int I; For (;;){Fputs ("Please input an integer:", stdout );Scanf ("% d", & I );Printf ("% d/N", I );} Return 0;} This program will first prompt the

Recently Learning "UNIX Advanced Environment Programming", encountered the problem of Stdin_fileno, in this summary.In some Unix system calls to Stdin_fileno for standard input, Stdout_fileno for standard output, Stderr_fileno for standard error,

First you know the difference between FILE *stdout and Stdout_fileno. stdin type is file*Stdin_fileno type is intThe functions that use stdin are mainly: Fread, fwrite, fclose, and so on, basically beginning with FFunctions that use Stdin_fileno are:

An error occurred while reading stdin from python on Windows. (Jinqing's column) A simpleCode, Read stdin, replace the output to stdout: #! /Usr/bin/ENV PythonImport OS, sysInput_file = SYS. stdinOutput_file = SYS. stdoutFor s in

Transferred from: http://blog.csdn.net/yeyuangen/article/details/6743416Fflush (stdin) cleans up the standard input stream and discards the excess data that is still not saved.Fflush (stdout): empties the output buffer and outputs the buffer

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