为什么要使用 conio.h? [英] Why use conio.h?

问题描述

我经常看到人们在 C 和 C++ 中使用 conio.h 的头文件，虽然我看不出使用 conio.h 与标准库函数相比.conio.h 还存在依赖于 Windows/MS-DOS 环境且不属于 C 标准的缺点.

I often see people use the header file of conio.h in C and C++, although I can´t see any major benefits in use of the functions inside of conio.h in comparison to the standard library functions. conio.h has furthermore the disadvantages of being dependent on the Windows/MS-DOS environment and not being part of the C standard.

• 选择conio.h的功能的原因是什么?
• conio.h里面的函数提供了什么，标准C库的函数不能提供什么?
• 为什么选择 conio 库?

• What is the reason to choose functions of conio.h?
• What do functions inside of conio.h provide, what the functions of the standard C libraries can't?
• Why to choose the conio library?

推荐答案

conio.h 头文件是 Turbo C 特有的，它比最早的 C 标准早了几年.它包含特定于 DOS 命令行的例程.这里经常使用的一个函数是 getch，它允许一次读取一个字符而无需按 Enter 键.它还包含 gotoxy 允许将光标放在终端中的特定位置

The conio.h header is specific to Turbo C, which predates the earliest C standard by several years. It contains routines that are specific to the DOS command line. One function here that's frequently used is getch, which allows reading one character at a time without having to press the Enter key. It also contains gotoxy which allows placing the cursor at a specific location in the terminal

一般来说，像这样与终端通信的方法是非常特定于操作系统的，因此每种方法都有自己的(通常是不可移植的)方式.

Generally speaking, methods of communicating with the terminal like this are very OS specific, so each has their own (typically non-portable) way of doing it.

这与 stdio.h 中的函数形成对比，其中包含 printf、scanf 和 getchar 等函数控制台正在使用中.

This contrasts with the functions in stdio.h which contain functions like printf, scanf, and getchar which work regardless of what type of console is in use.

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