1_pro.c

来自「C源代码 计算机等级考试C语言上机题」· C语言 代码 · 共 57 行

#include  <stdio.h>
#include  <mem.h>
#include  <string.h>
#include  <conio.h>
#include  <stdlib.h>
#define  MAX  100
typedef struct
{ char dm[5];   /*产品代码*/
  char mc[11];  /*产品名称*/
  int dj;        /*单价*/
  int sl;        /*数量*/
  long je;       /*金额*/
}PRO;
PRO sell[MAX];
void ReadDat();
void WriteDat();
void SortDat()
{


}
void main()
{
  memset(sell,0,sizeof(sell));
  ReadDat();
  SortDat();
  WriteDat();
}
void ReadDat()
{
  FILE *fp;
  char str[80],ch[11];
  int i;
  fp=fopen("IN2.DAT","r");
  for(i=0;i<100;i++)
  {
    fgets(str,80,fp);
    memcpy(sell[i].dm,str,4);
    memcpy(sell[i].mc,str+4,10);
    memcpy(ch,str+14,4);ch[4]=0;
    sell[i].dj=atoi(ch);
    memcpy(ch,str+18,5);ch[5]=0;
    sell[i].sl=atoi(ch);
    sell[i].je=(long)sell[i].dj*sell[i].sl;}
    fclose(fp);
  }
void WriteDat(void)
{
  FILE *fp;
  int i;
  fp=fopen("OUT2.DAT","w");
  for(i=0;i<100;i++)
     fprintf(fp,"%s %s %4d %5d %10ld\n",sell[i].dm,sell[i].mc,sell[i].dj,sell[i].sl,
sell[i].je);
  fclose(fp);
}