整数到char表问题 [英] integer to char table problems

问题描述

我正在尝试打印一个表，其中整数对应于什么

字符。有人可以告诉我这段代码有什么问题吗？


#include< stdio.h>

int main（）

{


char line [9]; / * wordlist中的每个单词* /

char d;


for（d = 0; d< = 255; d ++）

printf（" int =％d \ tchar =％c \ nn，d，d）;

}

提前致谢！

I am trying to print a table of what integer corresponds to what
character. Can someone please tell me what is wrong with this code?

#include <stdio.h>
int main()
{

char line[9]; /* each word in the wordlist */
char d;

for (d=0; d<=255; d++)
printf("int=%d\tchar=%c\n",d,d);
}
Thanks in advance!

推荐答案

AA写道：

我正在尝试打印一个整数对应什么的表
性格。有人可以告诉我这段代码有什么问题吗？

< stdio.h>

int main（）
{

char line [9]; / * wordlist中的每个单词* /
char d;

for（d = 0; d< = 255; d ++）
printf（" int =％d \\ \\ ttt =％c \ n"，d，d）;
}

I am trying to print a table of what integer corresponds to what
character. Can someone please tell me what is wrong with this code?

#include <stdio.h>

int main()
{

char line[9]; /* each word in the wordlist */
char d;

for (d=0; d<=255; d++)
printf("int=%d\tchar=%c\n",d,d);
}

你不知道char类型是否可以达到255。

#include< stdio.h>

#include< limits.h>


int main（void）< br $> b $ b $

for（d = 0; d< = CHAR_MAX; d ++）{

printf（" int =％d char =％c \ n"，d，d）;

}

返回0;

}


-

pete

You don''t know if type char can ever reach 255.
#include <stdio.h>
#include <limits.h>

int main(void)
{
int d;

for (d=0; d <= CHAR_MAX; d++) {
printf("int=%d char=%c\n", d, d);
}
return 0;
}

--
pete

pete写道：

printf（" int =％d char =％c \ n"，d，d）;

printf("int=%d char=%c\n", d, d);

它也可能有点微妙printf'的可变参数是

受默认促销限制 - 也就是说，printf并不关心你是否通过char，short或int传递
要么是％d，要么是％c参数;只有

会影响价值的显示方式（虽然循环当然很关心，但是如同皮特所指出的那样，b $ b。）


As令人困惑的是，在将NULL定义为0的平台上，您还可以将
传递给％d或％c参数的NULL，并且它将导致没有未定义的

行为，被视为int零。

-

Derrick Coetzee

我将此新闻组发布到公共领域。我不承担所有

明示或暗示保证并承担所有责任。我不是专业人士。

It may also be a little bit subtle that printf''s variadic arguments are
subject to the default promotions - that is, printf doesn''t care whether
you pass a char, short, or int for either a %d or %c argument; it only
affects how the value is displayed (although the loop certainly cares,
as pete points out.)

As a confusing aside, on platforms that define NULL as 0 you could also
pass NULL for a %d or %c argument, and it would cause no undefined
behaviour, being treated as the int zero.
--
Derrick Coetzee
I grant this newsgroup posting into the public domain. I disclaim all
express or implied warranty and all liability. I am not a professional.

" AA" < [e-mail]>在消息新闻中写道：Ill5d.8340

"AA" <[e-mail]> wrote in message news:Ill5d.8340

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