使用exe在C中进行I / O重定向

Question

Here is my code:

#include<stdio.h>

int main()
{
    int a = '\0';

    while ((a = getchar()) != EOF){
        if (a != ' ' || a != '\t' || a != '\n' || a != ';' || a != ',' || a != '.'){
            putchar(a);
        }
        else{
            continue;
        }
    }

    system("pause");
    return 0;
}

I need to read a poem from an input file, and output the poem with no spaces or punctuation. Must be done using I/O variation. I've searched all over, but I can't seem to find how to do this the way I need. Any help is much appreciated...

Answer 1

Hope this solves your Problem. Use ascii values for character. Also use fgetc/fputc/fscanf/fprintf etc for file i/o related operations. ASCII CHART link here ASCII Chart VALUES .

#include<stdio.h>


int main()
{
 FILE *pfile=NULL;
 char data[255];
 int i=0;

 pfile=fopen("poem.txt","r");

 while((data[i]=fgetc(pfile)) != EOF)
 {

   if(data[i]> 32 && data[i] < 123)
   {
     if(data[i] != 44 && data[i]!= 45 && data[i]!=46 && data[i]!=33)
     {
       //In the above 'if statement' you can add more characters/special
       //characters you wish to exclude/ignore
       printf("%c",data[i]);
       i++;
     }
   }

}
 return 0;
}