:
, ;
- (, printf() scanf()).
:
struct ={1, _2,..., n};
struct datebd={8,"", 1978};
. . :
.
printf("%d %s %d",bd.day, bd.month, bd.year);
-.
#include <stdio.h>
#include <stdlib.h>
struct date
{
int day;
char *month;
int year;
};
struct persone
{
char firstname[20];
char lastname[20];
struct date bd;
};
int main()
{
system("chcp 1251");
system("cls");
struct persone p;
printf(": ");
scanf("%s",p.firstname);
printf(": ");
scanf("%s",p.lastname);
printf(" \n: ");
scanf("%d",&p.bd.day);
printf(": ");
scanf("%s",p.bd.month);
printf(": ");
scanf("%d",&p.bd.year);
printf("\n : %s %s, %d %s %d ",
p.firstname, p.lastname, p.bd.day, p.bd.month, p.bd.year);
getchar(); getchar();
return 0;
}
. }. .
struct complex_type //
{
double real;
double imag;
} number; //
: number.real, number.imag.
, .
, , , , .
, , . , .
union
{
1;
2;
...
n;
};
:
, ;
|
|
|
.
#include <stdio.h>
#include <stdlib.h>
int main()
{
char temp;
system("chcp 1251");
system("cls");
union
{
unsigned char p[2];
unsigned int t;
} type;
printf(" : ");
scanf("%d", &type.t);
printf("%d = %x .\n",type.t, type.t);
//
temp = type.p[0];
type.p[0] = type.p[1];
type.p[1] = temp;
printf(" , \n");
printf("%d = %x .\n",type.t, type.t);
getchar(); getchar();
return 0;
}
, , .
, . ,
:
, , .
,
#include <stdio.h>
#include <stdlib.h>
#define YEAR0 1980
struct date
{
unsigned short day:5;
unsigned short month:4;
unsigned short year:7;
};
int main()
{
struct date today;
system("chcp 1251");
system("cls");
today.day =16;
today.month = 12;
today.year = 2013 - YEAR0; //today.year = 33
printf("\n %u.%u.%u \n", today.day, today.month, today.year+YEAR0);
printf("\n today: %d ", sizeof(today));
printf("\n today = %hu = %hx .", today, today)
getchar();
return 0;
}
.
3
#include <stdio.h>
#include <stdlib.h>
struct book
{
char title [15];
char author [15];
int value;
};
int main()
{
struct book libry[3];
int i;
system("chcp 1251");
system("cls");
for(i=0;i<3;i++)
{
printf(" %d :",i+1);
gets(libry[i].title);
printf(" %d : ",i+1);
gets(libry[i].author);
printf(" %d : ",i+1);
scanf("%d",&libry[i].value);
getchar();
}
for(i=0;i<3;i++)
{
printf("\n %d. %s ", i+1,libry[i].author);
printf("%s %d",libry[i].title,libry[i].value);
}
getchar();
return 0;
}
, . . .
(). #. , , .
|
|
|
#include
#define ()
#undef
#if
#ifdef
#ifndef
#else
#elif , else if
#endif
#line
#error
#pragma , .
#include
#include . , . , . , .
#include <stdio.h>
#include "func.c"
#define
#define .
