如何从文件中删除一些字符？ [英] how to remove some character from a file?

问题描述

我如何删除文件中的一些字符？我有一个文件，我想从中删除一些字符，我想将一些字符交换到anot 她和我应该在不使用临时字符串的情况下完成它。通常如何更改内容的文件？

解决方案

参见下面的示例并根据您的要求对其进行更改： -

这只是想法你怎么做

  #include   <   iostream  >  
   #include   <   cstdio  >  
   #include   <   fstream  >  
   #include   <   string  > ;  
  
  int  main（）
 {
 ifstream file（  vowels.txt）; 
 
  char  cstr [ 80 ]; 
 
  while （！file.eof（））
 {
 
 file.getline（cstr，  80 ）; 
 
 
 
  for （ int  i = < span class =code-digit> 0 ; i< cstr.length（）; i ++）
 {
  if  （cstr [i] == '  a' || cstr [i] == '  e' || cstr [i] == '  i' || cstr [i] == '  o ' || cstr [i] = '  u'）
 {
 cstr [i] = ' '; 
} 
  else  
 {
 text [i] = putchar（toUpper（text [i]））; 
} 
 
} 
 
 
} 
 
 system（  pause）; 
  return   0 ; 
} 

请描述要删除的字符类型？

我在VB中创建了一个应用程序。特定和私人使用的网络。

但是，如果您能描述您的问题，那么只有会员可以帮助您。 ：）

how i can delete some char in a file?i have a file and i want to remove some char from it and i want to swap some char to another and i should done it without using a temp string.in generally how to change in content 's file?

解决方案

See below example and made changes in that as per your requirement:-
this is just idea how you can do that

#include<iostream>
#include<cstdio>
#include<fstream>
#include<string>

int main ()
{
    ifstream file("vowels.txt");

    char cstr[80];
    
    while (!file.eof())
    {

    file.getline(cstr,80);
    
    
    
    for(int i = 0; i < cstr.length(); i++)
    {
            if(cstr[i] == 'a' || cstr[i] == 'e' || cstr[i] == 'i' || cstr[i] == 'o' || cstr[i] ='u') 
            {
            cstr[i] = '';
            }
            else
	    {
              text[i]= putchar(toUpper(text[i]));
            }
    
    }


}

system("pause");
return 0;
}

Please describe what type of characters you want to remove?
I have created an application in VB.Net for specific and private use.
but, if you can describe your question then only members can help you. :)

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