1_pro.c

C源代码 计算机等级考试C语言上机题

#include  <stdio.h>
int a[300], cnt=0;
double pjz1=0.0,pjz2=0.0;
int isP(int m)
{
  int i;
  for(i=2;i<m;i++)
  if(m%i==0) return 0;
  return 1;
}
void jsValue()
{


}
main()
{
  int i;
  readDat();
  jsValue();
  writeDat();
  printf("cnt=%d\n满足条件的平均值pjz1=%7.2lf\n不满足条件的平均值pjz2=%7.2lf\n",
cnt,pjz1,pjz2);
}
readDat()
{
  FILE *fp;
  int i;
  fp=fopen( "IN19.DAT","r");
  for(i=0;i<300;i++) 
  fscanf(fp,"%d,",&a[i]);
  fclose(fp);
}
writeDat()
{
  FILE *fp;
  int i;
  fp=fopen("OUT19.DAT","w");
  fprintf(fp,"%d\n%7.2lf\n%7.2lf\n",cnt ,pjz1,pjz2);
  fclose(fp);
}