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Question

我有 30 个文件要在 C 中打开。

phantom_atn_1.bin phantom_atn_2.bin ... phantom_atn_30.bin

我正在尝试以下方法，但它不起作用：

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

char filename[100],filename1[100],extension1[100];
int fileNum,frameNum;


main()
{
    printf("Test1\n");
    frameNum=30;

    strcpy (extension1, ".bin");

    for (fileNum=1;fileNum<frameNum+1;fileNum++)
    {
        printf("Test2\n");
        strcpy (filename1, "phantom_atn_");
        printf("Test3\n");  
        printf(filename1); 
        printf("\n");  
        printf(filename,"%d", fileNum); 
        printf("Test5\n");  
        sprintf(filename,"%d", fileNum); 
        printf("Test6\n");  
        strcat(filename1,extension1);     
        printf("Test7\n");
        printf(filename);
        printf("Test8\n");
        printf(filename);
        image1=fopen(filename,"rb");
    }
};

任何帮助将不胜感激。

Answer 1

为什么不简单地使用例如snprintf?

snprintf(filename, sizeof(filename), "phantom_atn_%d.bin", fileNum);

（_snprintf 在 Windows 上）

Answer 2

希望这会奏效：

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

char filename[100];
int fileNum,frameNum;


main()
{
  FILE *fp[30];
  char *extension1 = ".bin";
  frameNum=30;
  for (fileNum=1;fileNum<frameNum+1;fileNum++)
  {
    sprintf(filename, "phantom_atn_%d%s", fileNum, extension1);
    printf("%s\n", filename);
    //I have opened file in write mode here                                                                                                                                                                                                                                                                                 
    fp[fileNum] = fopen(filename, "w");
    //now you can write anything in file pointer using below code                                                                                                                                                                                                                                                           
    fprintf(fp[fileNum], "%d", fileNum);
  }
}