在K& R2中练习1-10 [英] Exercise 1-10 in K&R2
问题描述
这是我在K& R2练习1-10的尝试。代码看起来很邋$
我。有更优雅的方法吗？
#include< stdio.h>
/ *将输入复制到输出，打印* /
/ *系列空白为单一* /
int main（）{
int c;
while（（c = getchar（））！= EOF）{
putchar（c）;
if（c ==''' '）{
while（（c = getchar（））==''''）
; / * null声明* /
putchar（c）;
}
}
返回0;
}
在
Gentoo框中使用gcc-3.4.6编译时，它会产生预期的输出。所以我假设代码至少是正确的，但不是
必然是最优的。
JZ
This is my attempt at exercise 1-10 in K&R2. The code looks sloppy to
me. Is there a more elegant way to do this?
#include <stdio.h>
/* copies input to output, printing */
/* series of blanks as a single one */
int main() {
int c;
while ((c = getchar()) != EOF) {
putchar(c);
if (c == '' '') {
while ((c = getchar()) == '' '')
; /* null statement */
putchar(c);
}
}
return 0;
}
It produces the expected output when compiled with gcc-3.4.6 on a
Gentoo box. So I''m assuming the code is at least correct, though not
necessarily optimal.
JZ
推荐答案
Josh Zenker写道：
Josh Zenker wrote:
这是我在K& R2练习1-10的尝试。代码看起来很邋$
我。有更优雅的方法吗？
#include< stdio.h>
/ *将输入复制到输出，打印* /
/ *系列空白为单一* /
int main（）{
int c;
while（（c = getchar（））！= EOF）{
putchar（c）;
if（c ==''' '）{
while（（c = getchar（））==''''）
; / * null语句* /
putchar（c）;
This is my attempt at exercise 1-10 in K&R2. The code looks sloppy to
me. Is there a more elegant way to do this?
#include <stdio.h>
/* copies input to output, printing */
/* series of blanks as a single one */
int main() {
int c;
while ((c = getchar()) != EOF) {
putchar(c);
if (c == '' '') {
while ((c = getchar()) == '' '')
; /* null statement */
putchar(c);
这不打印额外的空间吗？你在if之前打印了这个角色。
-
Ian Collins。
Doesn''t this print an extra space? You printed the character before the if.
--
Ian Collins.
Ian Collins写道：
Ian Collins wrote:
Josh Zenker写道：
Josh Zenker wrote:
这是我在K& R2。
This is my attempt at exercise 1-10 in K&R2.
哎呀，我的意思是练习1-9。在我发布这个之后我也意识到
那里可能有大量的代码用于这个精确的练习。我会
搜索群组档案。
Oops, I meant exercise 1-9. I also realized after I posted this that
there''s probably a ton of code out there for this exact exercise. I''ll
search the group archives.
代码看起来很草率
我。有更优雅的方法吗？
#include< stdio.h>
/ *将输入复制到输出，打印* /
/ *系列空白为单一* /
int main（）{
int c;
while（（c = getchar（））！= EOF）{
putchar（c）;
if（c ==''' '）{
while（（c = getchar（））==''''）
; / * null语句* /
putchar（c）;
The code looks sloppy to
me. Is there a more elegant way to do this?
#include <stdio.h>
/* copies input to output, printing */
/* series of blanks as a single one */
int main() {
int c;
while ((c = getchar()) != EOF) {
putchar(c);
if (c == '' '') {
while ((c = getchar()) == '' '')
; /* null statement */
putchar(c);
这不打印额外的空间吗？你在if之前打印了这个角色。
Doesn''t this print an extra space? You printed the character before the if.
我在几个不同的输入上测试了它，它似乎产生了
所需的输出。例如，输入argle bargle和argle bargle。产生输出
" argle bargle" ;.
JZ
I tested it on several different inputs, and it seems to produce the
desired output. For example, input "argle bargle" produces output
"argle bargle".
JZ
Josh Zenker写道：
Josh Zenker wrote:
Ian Collins写道：
Ian Collins wrote:
>> Josh Zenker写道：
>>Josh Zenker wrote:
>>>这是我在K& R2练习1-10的尝试。
>>>This is my attempt at exercise 1-10 in K&R2.
哎呀，我的意思是练习1-9。在我发布这个之后我也意识到
那里可能有大量的代码用于这个精确的练习。我会
搜索群组档案。
Oops, I meant exercise 1-9. I also realized after I posted this that
there''s probably a ton of code out there for this exact exercise. I''ll
search the group archives.
>>> ;代码看起来很草率到我。有没有更优雅的方法呢？
#include< stdio.h>
/ *将输入复制到输出，打印* /
/ *系列空白作为单一的空白* /
int main（）{
int c;
while（（c = getchar（））！= EOF）{
putchar（c）;
if（c ==''''）{
while（（c = getchar（））==''''）
; / * null语句* /
putchar（c）;
>>>The code looks sloppy to
me. Is there a more elegant way to do this?
#include <stdio.h>
/* copies input to output, printing */
/* series of blanks as a single one */
int main() {
int c;
while ((c = getchar()) != EOF) {
putchar(c);
if (c == '' '') {
while ((c = getchar()) == '' '')
; /* null statement */
putchar(c);
这不打印额外的空间吗？你在if之前打印了这个角色。
Doesn''t this print an extra space? You printed the character before the if.
我在几个不同的输入上测试了它，它似乎产生了
所需的输出。例如，输入argle bargle和argle bargle。产生输出
" argle bargle" ;.
I tested it on several different inputs, and it seems to produce the
desired output. For example, input "argle bargle" produces output
"argle bargle".
傻傻的我，我没有发现在终止时用c！='' ''。
-
Ian Collins。
Silly me, I didn''t spot the while terminating with c != '' ''.
--
Ian Collins.
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