对这个计划的钟声！ [英] This program sounds the bell!

问题描述

我是一个全新的学生编程舞台，所以我不能掌握这个程序写在我的书中，我一直在关注了几天。该方案是这样的：

I'm a brand-new student in programming arena so I can't grasp this program written in my book that I have been following for a few days. The program is like this:

#include "stdio.h"

main()
{
 printf("\a");
}

这是什么意思程序？这是否意味着方案，我们可以听到响铃钟？我听不到任何响起铃声！

What does this program mean? Does this program mean that we could hear a ringing bell? I can't hear any ringing bell sound!!!

推荐答案

ASCII字符7是BELL字符，它在C psented为 \\重新$ P $ 。当这个人物在终端上输出一些终端将产生蜂鸣声;时下，许多人不。 （我看着你，Ubuntu Linux系统。）

ASCII character 7 is the BELL character, and it's represented in C as \a. Some terminals will produce a beep when this character is output on the terminal; nowadays, many don't. (I'm looking at you, Ubuntu.)

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