删除密钥的ASCII在C语言中不起作用 [英] ASCII for Delete Key not working in C

问题描述

Hii，

删除键的ASCII在我的C代码中不起作用.
我尝试过了...

Hii,

ASCII for the delete key is not working in my C code.
I tried this...

int c;
c=getch();
if(c==127)
{
     printf("\nPressed Delete Key");
}
else
{
    printf("\n Not Delete Key");
}
getch();

推荐答案

查看有关 ASCII 字符的 MDSN 文档:ASCII字符代码表1 [

我在我的计算机( Windows Vista 32位)上尝试了您的代码，发现了以下内容:

• BACKSPACE 键产生代码8；
• DELETE 键产生代码224；
• > CTRL + BACKSPACE 键产生代码127.

Look at the MDSN documentation about ASCII characters: ASCII Character Codes Chart 1[^]

They state: "ASCII code 127 has the code DEL. Under MS-DOS this code has the same effect as ASCII 8 (BS). The DEL code can be generated by the CTRL + BKSP key."

I tried your code on my computer (Windows Vista 32 bit), and I found this:

• the BACKSPACE key produce the code 8;
• the DELETE key produce the code 224;
• the CTRL + BACKSPACE key produce the code 127.

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