简单的FSCANF问题，100分

[shankeke]

源程序定义如下

#define MAX_PLANET 500
int coor[MAX_PLANET][3] = {{1,2,6},{5,2,6},{3,13,23},{7,8,1},{4,5,2}};

请帮忙改成用FSCANF从TXT文件中获取此数组coor[MAX_PLANET][3]。
详细就结贴，谢谢

[hityct1]

msdn中的例子：

#include <stdio.h>

FILE *stream;

void main( void )
{
   long l;
   float fp;
   char s[81];
   char c;

   stream = fopen( "fscanf.out", "w+" );
   if( stream == NULL )
      printf( "The file fscanf.out was not opened\n" );
   else
   {
      fprintf( stream, "%s %ld %f%c", "a-string", 
               65000, 3.14159, 'x' );

      /* Set pointer to beginning of file: */
      fseek( stream, 0L, SEEK_SET );

      /* Read data back from file: */
      fscanf( stream, "%s", s );
      fscanf( stream, "%ld", &l );

      fscanf( stream, "%f", &fp );
      fscanf( stream, "%c", &c );

      /* Output data read: */
      printf( "%s\n", s );
      printf( "%ld\n", l );
      printf( "%f\n", fp );
      printf( "%c\n", c );

      fclose( stream );
   }
}


Output

a-string
65000
3.141590
x

[xiaopoy]

int tmp[MAX_PLANET][3];
do
{
fscanf ("%i%i%i", tmp[i][0], tmp[i][1], tmp[i][2], tmp[i][3]);
}
while (++i<MAX_PLANET)

[shankeke]

请问楼上，按照你写的，TXT里面的数据格式应该是什么样的?

[waizqfor]

#define MAX_PLANET 500
int coor[MAX_PLANET][3] = {{1,2,6},{5,2,6},{3,13,23},{7,8,1},{4,5,2}};
int i;
for(i=0;i<=MAX_PLANET;i++)
{
fscanf("%d %d %d %d",&coor[i][0],*coor[i][1],&coor[i][2],&coor[i][3])
}

[shankeke]

Fopen的语句也写上啊，详细一点，谢谢

[waizqfor]

[Quote=引用 3 楼 shankeke 的回复:]
请问楼上，按照你写的，TXT里面的数据格式应该是什么样的?
[/Quote]
一个数中间一个空格
也可以用fseek设置位置写入

[shankeke]

1 1 1
2 2 2
3 3 3
.
.
.
这样吗？

[waizqfor]

[Quote=引用 4 楼 waizqfor 的回复:]
C/C++ code
#define MAX_PLANET 500
int coor[MAX_PLANET][3] = {{1,2,6},{5,2,6},{3,13,23},{7,8,1},{4,5,2}};
int i;
for(i=0;i<=MAX_PLANET;i++)
{
fscanf("%d %d %d %d",&coor[i][0],*coor[i][1],&coor[i][2],&coor[i][3])
}
[/Quote]
FILE *p
p=fopen("123.txt","w+");

[waizqfor]

[Quote=引用 7 楼 shankeke 的回复:]
1 1 1
2 2 2
3 3 3
.
.
.
这样吗？
[/Quote]
可以拿编译器去试试

[xiaoyisnail]

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

#define MAX_PLANET 500

int main()
{
	int coor[MAX_PLANET][3] = {0};
	FILE *fp = fopen("in.txt", "r");
	if(!fp)
	{
		printf("error\n");
		exit(1);
	}
	for(int i=0;i<MAX_PLANET;i++)
	{
		if(fscanf(fp, "%d %d %d", &coor[i][0], &coor[i][1], &coor[i][2])==EOF)
			break;
	}

	for(int j=0;j<i;j++)
		printf("%d %d %d\n", coor[j][0], coor[j][1], coor[j][2]);
	
	fclose(fp);
	return 0;
}

in.txt内容：

1 2 6
5 2 6
3 13 23
7 8 1
4 5 2

运行结果：

1 2 6
5 2 6
3 13 23
7 8 1
4 5 2
Press any key to continue

[ylj103037496]

[Quote=引用 10 楼 xiaoyisnail 的回复:]
C/C++ code

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

#define MAX_PLANET 500

int main()
{
int coor[MAX_PLANET][3] = {0};
FILE *fp = fopen("in.txt", "r");
if(!fp)
{
printf("error\n");
exit(1);
}
for(int i=0;i<MAX_PLANET;i++)
{
if(fscanf(fp, "%d %d %d", &coor[i][0], &coor[i][1], &coor[i][2])==EOF)
break;
}

for(int j=0;j<i;j++)…
[/Quote]


学习了。