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至顶网软件频道基础软件C语言程序设计经典实例之十

C语言程序设计经典实例之十

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时间函数举例

作者:佚名 来源:唯C世界 2007年10月28日

关键字: Linux

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【程序95】

  题目:家庭财务管理小程序

  1.程序分析:

  2.程序源代码:

/*money management system*/
#include "stdio.h"
#include "dos.h"
main()
{
 FILE *fp;
 struct date d;
 float sum,chm=0.0;
 int len,i,j=0;
 int c;
 char ch[4]="",ch1[16]="",chtime[12]="",chshop[16],chmoney[8];
 pp: clrscr();
 sum=0.0;
 gotoxy(1,1);printf("|----------------------------------------------------|");
 gotoxy(1,2);printf("| money management system(C1.0) 2000.03 |");
 gotoxy(1,3);printf("|----------------------------------------------------|");
 gotoxy(1,4);printf("| -- money records -- | -- today cost list -- |");
 gotoxy(1,5);printf("| ------------------------ |-----------------------------|");
 gotoxy(1,6);printf("| date: -------------- | |");
 gotoxy(1,7);printf("| | | | |");
 gotoxy(1,8);printf("| -------------- | |");
 gotoxy(1,9);printf("| thgs: ------------------ | |");
 gotoxy(1,10);printf("| | | | |");
 gotoxy(1,11);printf("| ------------------ | |");
 gotoxy(1,12);printf("| cost: ---------- | |");
 gotoxy(1,13);printf("| | | | |");
 gotoxy(1,14);printf("| ---------- | |");
 gotoxy(1,15);printf("| | |");
 gotoxy(1,16);printf("| | |");
 gotoxy(1,17);printf("| | |");
 gotoxy(1,18);printf("| | |");
 gotoxy(1,19);printf("| | |");
 gotoxy(1,20);printf("| | |");
 gotoxy(1,21);printf("| | |");
 gotoxy(1,22);printf("| | |");
 gotoxy(1,23);printf("|--------------------------------------------------|");
 i=0;
 getdate(&d);
 sprintf(chtime,"%4d.%02d.%02d",d.da_year,d.da_mon,d.da_day);
 for(;;)
 {
  gotoxy(3,24);printf(" Tab __browse cost list Esc __quit");
  gotoxy(13,10);printf(" ");
  gotoxy(13,13);printf(" ");
  gotoxy(13,7);printf("%s",chtime);
  j=18;
  ch[0 ]=getch();
  if(ch[0]==27)
   break;
   strcpy (chshop,"");
   strcpy(chmoney,"");
  if(ch[0]==9)
  {
   mm:i=0;
   fp=fopen("home.dat","r+");
   gotoxy(3,24);printf(" ");
   gotoxy(6,4);printf(" list records ");
   gotoxy(1,5);printf("|-------------------------------------|");
   gotoxy(41,4);printf(" ");
   gotoxy(41,5);printf(" |");
   while(fscanf(fp,"%10s%14s%f\n",chtime,chshop,&chm)!=EOF)
   {
    if(i==36)
    {
     getch();
     i=0;
    }
    if ((i%36)<17)
    {
     gotoxy(4,6+i);
     printf(" ");
     gotoxy(4,6+i);
    }
    else
    if((i%36)>16)
    {
     gotoxy(41,4+i-17);
     printf(" ");
     gotoxy(42,4+i-17);
    }
    i++;
    sum=sum+chm;
    printf("%10s %-14s %6.1f\n",chtime,chshop,chm);}
    gotoxy(1,23);printf("|----------------------------------------------|");
    gotoxy(1,24);printf("| |");
    gotoxy(1,25);printf("|----------------------------------------------|");
    gotoxy(10,24);printf("total is %8.1f$",sum);
    fclose(fp);
    gotoxy(49,24);printf("press any key to.....");getch();goto pp;
   }
   else
   {
    while(ch[0]!='\r')
    {
     if(j<10)
     {
      strncat(chtime,ch,1);
      j++;
     }
     if(ch[0]==8)
     {
      len=strlen(chtime)-1;
      if(j>15)
      {
       len=len+1;
       j=11;
      }
      strcpy(ch1,"");
      j=j-2;
      strncat(ch1,chtime,len);
      strcpy(chtime,"");
      strncat(chtime,ch1,len-1);
      gotoxy(13,7);printf(" ");
     }
     gotoxy(13,7);printf("%s",chtime);ch[0]=getch();
     if(ch[0]==9)
      goto mm;
     if(ch[0]==27)
      exit(1);
    }
    gotoxy(3,24);printf(" ");
    gotoxy(13,10);
    j=0;
    ch[0]=getch();
    while(ch[0]!='\r')
    {
     if (j<14)
     {
      strncat(chshop,ch,1);
      j++;
     }
     if(ch[0]==8)
     {
      len=strlen(chshop)-1;
      strcpy(ch1,"");
      j=j-2;
      strncat(ch1,chshop,len);
      strcpy(chshop,"");
      strncat(chshop,ch1,len-1);
      gotoxy(13,10);printf(" ");
     }
     gotoxy(13,10);printf("%s",chshop);ch[0]=getch();}
     gotoxy(13,13);
     j=0; 
     ch[0]=getch();
     while(ch[0]!='\r')
     {
      if (j<6)
      {
       strncat(chmoney,ch,1);
       j++;
      }
      if(ch[0]==8)
      {
       len=strlen(chmoney)-1;
       strcpy(ch1,"");
       j=j-2;
       strncat(ch1,chmoney,len);
       strcpy(chmoney,"");
       strncat(chmoney,ch1,len-1);
       gotoxy(13,13);printf(" ");
      }
      gotoxy(13,13);printf("%s",chmoney);ch[0]=getch();
     }
     if((strlen(chshop)==0)||(strlen(chmoney)==0))
      continue;
     if((fp=fopen("home.dat","a+"))!=NULL);
      fprintf(fp,"%10s%14s%6s",chtime,chshop,chmoney);
      fputc('\n',fp);
      fclose(fp);
      i++;
      gotoxy(41,5+i);
      printf("%10s %-14s %-6s",chtime,chshop,chmoney);
    }
   }
 }


  【程序96】

  题目:计算字符串中子串出现的次数

  1.程序分析:

  2.程序源代码:

#include "string.h"
#include "stdio.h"
main()
{
 char str1[20],str2[20],*p1,*p2;
 int sum=0;
 printf("please input two strings\n");
 scanf("%s%s",str1,str2);
 p1=str1;p2=str2;
 while(*p1!='\0')
 {
  if(*p1==*p2)
  {
   while(*p1==*p2&&*p2!='\0')
   {
    p1++;
    p2++;
   }
  }
  else
   p1++ ;
  if(*p2=='\0')
   sum++;
   p2=str2;
 }
 printf("%d",sum);
 getch();
}

  【程序97】

  题目:从键盘输入一些字符,逐个把它们送到磁盘上去,直到输入一个#为止。

  1.程序分析:     

  2.程序源代码:

#include "stdio.h"
main()
{
 FILE *fp;
 char ch,filename[10];
 scanf("%s",filename);
 if((fp=fopen(filename,"w"))==NULL)
 {
  printf("cannot open file\n");
  exit(0);
 }
 ch=getchar();
 ch=getchar();
 while(ch!='#')
 {
  fputc(ch,fp);putchar(ch);
  ch=getchar();
 }
 fclose(fp);
}
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