一段程序输出的疑惑。。

[sundaygeek]

#include <stdio.h>

#include <stdlib.h>



int main(void)

{

  long num1 = 234567L;                       /* Input values...              */

  long num2 = 345123L;

  long num3 = 789234L;



  long num4 = 0L;                            /* Values read from the file... */

  long num5 = 0L;

  long num6 = 0L;



  float fnum = 0.0f;                         /* Value read from the file     */

  int   ival[6] = { 0 };                     /* Values read from the file    */

  FILE *pfile = NULL;                        /* File pointer                 */

  char *filename = "C:\\myfile.txt";





  pfile = fopen(filename, "w");                 /* Create file to be written */

  if(pfile == NULL)

  {

    printf("Error opening %s for writing. Program terminated.", filename);

    exit(1);

  }

  fprintf(pfile, "%6ld%6ld%6ld", num1, num2, num3);   /* Write file          */

  fclose(pfile);                                      /* Close file          */

  printf("\n %6ld %6ld %6ld", num1, num2, num3);   /* Display values written */



  pfile = fopen(filename, "r");                       /* Open file to read   */

  fscanf(pfile, "%6ld%6ld%6ld", &num4, &num5 ,&num6); /* Read back           */

  printf("\n %6ld %6ld %6ld", num4, num5, num6);      /* Display what we got */



  rewind(pfile);                          /* Go to the beginning of the file */

  fscanf(pfile, "%2d%3d%3d%3d%2d%2d%3f", &ival[0], &ival[1], /* Read it again */

                      &ival[2], &ival[3], &ival[4] , &ival[5], &fnum);

  fclose(pfile);                                    /* Close the file and    */

  remove(filename);                                 /* delete physical file. */



  /* Output the results */

  printf("\n");

  for(int i = 0 ; i < 6 ; i++ )

    printf("%sival[i] = %d", i == 4 ? "\n\t" : "\t", i, ival[i]);

  printf("\nfnum = %f\n", fnum);

  return 0;

}

为什么ival的输出是下面的这样，而不是22,456,734,512,37,89呢？？求助

	ival[i] = 0	ival[i] = 1	ival[i] = 2	ival[i] = 3
	ival[i] = 4	ival[i] = 5

[baichi4141]

printf("%sival[i] = %d", i == 4 ? "\n\t" : "\t", i, ival[i]);
第一个%s对应参数列表中的格式符
第二个%d对应后面参数列表中的循环变量i

明显的书写错误，格式字符串中的[i]应该改成[%d]
多动脑，少提问

[sundaygeek]

楼上说的是，给马虎了。ths

[Gloveing]

囧。。哈哈

[棋不语]

给一楼分然后结贴吧