#include<stdio.h>
#include"head.h"
#define n 250000
main()
{
  struct benjilixi node[313],*p;
  double sum=0;
  int i;
  FILE *fp;
  fp=fopen("goufangdaikuang.txt","w");
  i=0;
  for (p=&node[1];p<=&node[312];p++)
  {
      i++;
      p->n=i;
      p->li_xi=(n-(i-1)*n/312)*0.003675;
      p->ben_xi=p->li_xi+n/312.0;
      p->yu_e=(n-i*n/312.0);
  }
  fprintf(fp,"n\t\tli_xi\t\tben_xi\t\tyu_e\n");
  for(p=&node[1];P<=&node[312];P++)
  {   sum+=p->ben_xi;
      fprintf(fp,"%d\t\t",p->n);
      fprintf(fp,"%g\t\t",p->li_xi);
      fprintf(fp,"%g\t\t",p->ben_xi);
      fprintf(fp,"%g\n",p->yu_e);
  }
  fprintf(fp,"sum=%g\n",sum);
}

这是头文件
struct benjilixi
{
    int n;
    double li_xi;
    double ben_xi;
    double yu_e;
};   
这是用vc编写的程序  但是编译不了  麻烦看看！！！谢谢...

for(p=&node[1];P<=&node[312];P++)   //p大小写不分。
另外结构体里面n与常量冲突。

#include<stdio.h>
#include"head.h"
#define n 250000  //宏定义n与下面结构体beijilixi中的n重复
main()
{
  struct benjilixi node[313],*p;    //p指针没有定义指向结构体!
  double sum=0;
  int i;
  FILE *fp;                           
  fp=fopen("goufangdaikuang.txt","w");
  i=0;
  for (p=&node[1];p<=&node[312];p++)
  {
      i++;
      p->n=i;
      p->li_xi=(n-(i-1)*n/312)*0.003675;
      p->ben_xi=p->li_xi+n/312.0;
      p->yu_e=(n-i*n/312.0);
  }
  fprintf(fp,"n\t\tli_xi\t\tben_xi\t\tyu_e\n"); //好像没写完整吧
  for(p=&node[1];P<=&node[312];P++)
  {   sum+=p->ben_xi;
      fprintf(fp,"%d\t\t",p->n);
      fprintf(fp,"%g\t\t",p->li_xi);
      fprintf(fp,"%g\t\t",p->ben_xi);
      fprintf(fp,"%g\n",p->yu_e);
  }
  fprintf(fp,"sum=%g\n",sum);
}

这是头文件
struct benjilixi
{
    int n;         //这!
    double li_xi;
    double ben_xi;
    double yu_e;
};

暂时就这么多吧
接下来交给后来的人了哈