c - 我需要创建一个程序，提示用户输入要读取的两个输入文件的名称。然后读取文件并显示统计信息

Question

这是我目前拥有的代码，但似乎无法编译。任何帮助将非常感激。

#include <stdio.h>
main (void)
{
  FILE *textfile1;
  FILE *textfile2;

  int c;
  char Filename;

  printf("Enter the name of text file:");
  scanf("%s", &Filename;

  textfile1 = fopen(textfile1, "r");
  if (textfile1 == NULL)
  {
    printf("File not found");
  }
  else
  {
    while (fscanf(textfile1, "%c", &textfile1) == 1)
   {
     printf("%c", textfile1);
    }
    fclose(textfile1);
    }
   }

Answer 1

#include <stdio.h>
int main (void) /* you had better specify the return value explicitly */
{
 FILE *textfile1;
 FILE *textfile2;

 int c;
 char Filename[1024]; /* allocate enough buffer to store the name */
 char textfiledata1; /* add this to store the data from file */

 printf("Enter the name of text file:");
 scanf("%1023s", Filename); /* add ), and other change including limit of length to read to avoid buffer overrun */

 textfile1 = fopen(Filename, "r"); /* you have to pass the name. Do not pass the uninitialized file pointer! */
 if (textfile1 == NULL)
 {
  printf("File not found");
 }
 else
 {
  while (fscanf(textfile1, "%c", &textfiledata1) == 1) /* store the data from file to the file pointer? nonsense. */
  {
   printf("%c", textfiledata1);
  }
  fclose(textfile1);
 }
 return 0; /* explicitly return something is a good practice */
}