从文件中读取跳过空格或空行文本 [英] Read text from file skipping any spaces or empty lines

问题描述

嗨。
我需要阅读一些文件，而无需characters.They之间的空格或空行可以有不同的布局，比如为1.txt，2.txt或3.txt：

---

的 1.txt的：的

  T
H
一世
小号
F
一世
升
Ë
 

的 2.txt：的

 →一世ķËŧH一个ŧ
 

的 3.txt：的

  S 0 M E牛逼H I体中
喜欢
ŧ小时的牛逼
 

---

如何做呢？我有以下的code：

 的#include＆LT;＆stdio.h中GT;
＃包括LT＆;＆stdlib.h中GT;
＃包括LT＆;＆string.h中GT;诠释主（）{
    焦炭℃;
    FILE * FP;    FP = FOPEN（1.txt的，R）;
    如果（FP == NULL）{
    看跌期权（打开文件失败\\ n）;
    出口（-1）;
    }    而（的fscanf（FP，％C \\ n，＆安培;！C）= EOF）{
        / *做的事情与C VAR * /
    }    FCLOSE（FP）;
    出口（0）;
}
 

解决方案

我觉得你问如何在一个文本文件阅读，忽略空格和空行。请澄清你的问题，使我们可以帮助你更好的。

下面的东西，让你开始：

您可以在整个文件中读取，然后删除你不想要的东西。以下后凭我的经验同意您的应用程序可能会运行得更快这种方式：
读取文件用C 更快

如果您使用这种方法达成一致，这下一篇文章将告诉你如何读取文本文件到缓冲区中，有一些错误处理：
<一href=\"http://stackoverflow.com/questions/3747086/reading-the-whole-text-file-into-a-char-array-in-c\">Reading整个文本文件转换成字符数组用C

然后你可以使用像这样把空格去掉，并为一些额外的新行相似：
<一href=\"http://stackoverflow.com/questions/13084236/function-to-remove-spaces-from-string-char-array-in-c\">Function去除字符串/字符数组空间用C

我希望这有助于让你开始，也许有人会找时间今天发布一些code你。

Hi. I need to read several files without spaces or empty lines between characters.They can have different layouts, such as 1.txt, 2.txt or 3.txt:

---

1.txt:

t
h
i
s
f
i
l
e

2.txt:

l

i

k

e

t

h

a

t

3.txt:

s o m e t h i n g
l i k e 
t h a t

---

How do i do that ? I Just have the following code:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(){
    char c ;
    FILE *fp;

    fp = fopen("1.txt","r");
    if(fp == NULL){
    puts("Open file failed\n");
    exit(-1);
    }

    while(fscanf(fp,"%c\n",&c)!=EOF){
        /*do things with c var*/
    }

    fclose(fp);
    exit(0);
}

解决方案

I think you're asking how to read in a text file, ignoring spaces and empty lines. Please clarify your question so that we can help you better.

Here's something to get you started:

You could read in the entire file, then remove anything you don't want. The following post agrees with my experience that your application will probably run faster that way: Reading a file faster in C

If you agree with that approach, this next post will show you how to read the text file into a buffer, with some error handling: Reading the whole text file into a char array in C

Then you can use something like this to remove the spaces, and something similar for the extra new lines: Function to remove spaces from string/char array in C

I hope this helps get you started, and perhaps someone will find time today to post some code for you.

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