譬如说有一个文本文件里面包含这么一些数据:
% Data
1
2
3
4
5
% Coordinates
1 1
2 2
3 3
% Elem
1 3 5
2 4 6

请问,如何将这三种不同类别的数据放到三个文本里面去,
就像,
文本1里面存放有
% Data
1
2
3
4
5
文本2里面有
% Coordinates
1 1
2 2
3 3
文本3里面有
% Elem
1 3 5
2 4 6

谢谢各位指点.

那不是有个很明显的分隔符么？
如果依次读入，判断%符号应该不难实现吧？

二楼的说的对,附原代码:
#include<conio.h>
#include<stdio.h>
#include<stdlib.h>
int main()
{
FILE *fp,*fp1,*fp2,*fp3;
char ch,i=0;
if((fp=fopen("test.txt","rt"))==NULL)
{
printf("Can't open file strike any key exit!");
getch();
exit(1);
}
if((fp1=fopen("test1.txt","wt"))==NULL)
{
printf("Can't create file strike any key exit!");
getch();
exit(1);
}
if((fp2=fopen("test2.txt","wt"))==NULL)
{
printf("Can't open file strike any key exit!");
getch();
exit(1);
}
if((fp3=fopen("test3.txt","wt"))==NULL)
{
printf("Can't open file strike any key exit!");
getch();
exit(1);
}
while((ch=fgetc(fp))!=EOF)
{
if(ch=='%') i++;
switch (i)
{
case 1:fputc(ch,fp1);break;
case 2:fputc(ch,fp2);break;
case 3:fputc(ch,fp3);break;
}
}
fclose(fp3);fclose(fp2);
fclose(fp1);fclose(fp);
return 0;
}

It really works, Thanks very much , you guys