这是 C 语言的家庭作业练习，让我发疯！我已经研究了将近两天，还没有让它工作，所以非常感谢任何帮助！
这是场景：我有一个逗号分隔的文本文件，如下所示：
(2005 TS15),2013-Apr-07,15.2,0.0391,8.0,0.0205,20.61,20.61,1890,21,13,APO*,0.479,M
(2010 GM23),2013-Apr-13,3.9,0.0099,0.9,0.0022,13.14,13.12,61600,24.7,7,APO*,0.195,M
(2009 SQ104),2013-Apr-22,27.8,0.0714,27.8,0.0714,8.16,8.15,67300,20.9,19,APO*,0.408,S
(2012 XF55),2013-Apr-22,32.7,0.0841,32.7,0.0840,7.33,7.33,15600,22.5,7,APO*,0.446,M
文件中有 10000 条记录（其数据与近地天体有关）。
我需要能够找到 10 个最大的对象/ 10 个最近的对象等，所以我的计划是将数据读入一个结构数组，每个结构都基于文件中的列。我已经创建了结构并创建了它的实例以从文件中填充。
我的问题最终在一般功能中......我认为......
我尝试将完整的结构数组初始化为结构的空白实例，但在那里没有任何效果......
我尝试将每一行作为字符串读取，然后根据“，”限制器对其进行标记，但我不知道如何将标记保存到结构的每个元素（这是注释掉的结尾部分...... )
我尝试使用fread()将文件读入结构数组，但那里也没有发生任何事情（那是被注释掉的结尾部分......）
我的代码如下。如果有人能指出我正确的方向，我将不胜感激！！（我希望它的格式没问题。如果我没有正确解释这个问题，请告诉我，我会的！！！）
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#define RECORDS 10972 /* number of records in the file */
typedef struct {
char *objectName;
char *CADate;
double NomDistLD;
double NomDistAU;
double MinDistLD;
double MinDistAU;
int VRel;
int Vinf;
int NSig;
float HVm;
int ref;
char *ObjClass;
double Diameter;
char *Type;
} NEO;
NEO textFile [RECORDS];
NEO passing[RECORDS];
void menu();
void countFile (FILE*fptr);
void general (FILE*fptr);
int main (void)
{
char filename[50];
int choice;
FILE* fptr;
printf("Enter name of file to open: \n");
scanf("%s", &filename);
fptr = fopen(filename, "r");
if (fptr != NULL)
printf ("File %s opened succesfully!\n\n", filename);
else
printf ("File %s not found!\n", filename);
countFile(fptr);
do
{
menu();
choice= 0;
while(choice <1 || choice >5)
{
printf("\nChoose an option from the above (1-5):\n");
scanf ("%d", &choice);
}
switch(choice)
{
case 1:
printf("function largest\n");
break;
case 2:
printf("function closest\n");
break;
case 3:
printf("function largest KE\n");
break;
case 4:
general (fptr);
break;
default:
break;
}
}
while (choice !=5);
printf("\n\nProgram Exiting. Goodbye!\n\n");
fclose (fptr);
return 0;
}
void general (FILE*fptr)
{
int count= 0, fileEnd= 0, i= 0, test= 0;
char **neoArray;
char hold[200]; /* string to hold tokenised strings */
char temp[10000]; /* string to hold each record as it is read in */
char *pToken;
const char *delim = ","; /* define delimiter to tokenising each record */
passing->objectName = "";
passing->CADate = "";
passing->NomDistLD = 0.0;
passing->NomDistAU = 0.0;
passing->MinDistLD = 0.0;
passing->MinDistAU = 0.0;
passing->VRel = 0;
passing->Vinf = 0;
passing->NSig = 0;
passing->HVm = 0.0;
passing->ref = 0;
passing->ObjClass = "";
passing->Diameter = 0.0;
passing->Type = "";
for (i=0; i<RECORDS; i++)
{
textFile[i] = passing;
}
}
/* while (!feof(fptr))
{
test = fread(&passing, sizeof(NEO), 1, fptr);
if(test != 0)
{
printf("\n%s %s %f\n", passing[0].objectName, passing[0].CADate, passing[0].NomDistLD);
}
}
/*while(!feof (fptr))
{
for (i=0; i<RECORDS; i++)
{
fscanf(fptr, "%s", temp);
pToken = strtok(temp, delim);
{
strcpy(textFile[i].objectName, pToken);
}
pToken = strtok(NULL, delim);
while (pToken != NULL)
{
strcpy(textFile[i].CADate, pToken);
}
pToken = strtok(NULL, delim);
while (pToken != NULL)
{
textFile[i].NomDistLD = atoi(pToken);
}
printf("\n%s %s %f\n", textFile[i].objectName, textFile[i].CADate, textFile[i].NomDistLD);
}
rewind (fptr);
}
}