/ ++ (streams). / , . / . , , , , , .
/ ++. / , , , , / . , , , , .
++ , :
| / | ||
| cin | ||
| cout | ||
| cerr | ||
| clog | cerr |
cin, cout.
/ iostream. / ++ : << >>.
<< ++. .
cout << .\n
cout << 100.99;
, >>. , num.
int num.
cin >> num;
/.
| 2 |
/* ,
*/
#include <iostream.h> //
// /
void main(void)
{
int i, j; //
double d; // i, j, d
i = 10; //
j = 20; //
d = 99.101; //
//
cout << : ;
cout << i;
cout << ;
cout << j;
cout << ;
cout << d
}
.
: 10 20 99.101
/ . , 2 :
| 3 |
/* ,
*/
#include <iostream.h> //
|
|
|
// /
void main(void)
{
int i, j; //
double d; // i, j, d
i = 10; //
j = 20; //
d = 99.101; //
//
cout << : << i << << j << << d;
}
, .
4 , .
| 4 |
/*, */
#include <iostream.h> //
// /
void main(void)
{
int i; //
cout << : ;
cin >> i;
cout << : << i << \n;
}
. printf(). printf() ++, #include -, printf(). stdio.h.
printf() (. 1) .
:
int printf(const char * format [, argument ] ... );
:
.
:
format ;
argument .
:
, .
-:
stdio.h
:
printf(One string);
:
One string
printf(%s %s, One, string);
:
One string
printf(%s\n%s, Two, string);
:
Two
string
printf([%d: %d], 1, 0);
:
[1: 0]
: , , , , . % - .
:
% [] [] [. ] [{ h | l | I64 | L }]
1.2 . :
%
- 1. % -, .
1. printf
| ; | |
| d, i | int; |
| o | unsigned int; ( 0 ) |
| x, X | unsigned int; ( 0x 0X ), 10 15 abcdef x ABCDEF X |
| u | unsigned int; |
| c | int; unsigned char |
| s | char *; , '\0' , |
| f | double; [-]mmm.ddd, d . 6; |
| e, E | double; [-]m.ddddddexx [-]m.ddddddExx, d . 6; |
| g, G | double; %e %E, -4 ; %f. |
| p | void *; ( |
| n | int *; , printf, . |
| % | ; % |
|
|
|
. - d, g s.
| , | ||
| d | printf(%d, 5); | |
| g | ( ) | printf(%g, 5.00); |
| s | printf(%s, fine!); |
printf():
printf(I am %s\n %d: %d\n, fine!, 1, 0);
:
I am fine!
1: 0
I am. , %, - . %s. , fine!. , \n - . , . 2 .
2.
| \n | |
| \t | |
| \ | |
| \ | |
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, \n . %d: %d. , ( 1 0) , :. \n.
. , . , , , .
++ : srand() rand() stdlib.
. srand() .
rand() 0 RAND_MAX. . 5 .
| 5 |
/*
srand ()*/
#include <iostream.h> //
// /
# include <stdlib.h> //
// srand() rand()
void main(void)
{
srand (2); //
//
cout << rand() << \n;
cout << rand() << \n;
|
|
|
}
, ( 5) . , srand(2). , srand() . , , . 6 .
| 6 |
/*
srand ()*/
#include <iostream.h> //
// /
# include <stdlib.h> //
// srand() rand()
# include <time.h> //
//
void main(void)
{
srand ((unsigned) time(NULL)); //
//
cout << rand() << \n;
cout << rand() << \n;
}
.
, :
| 7 |
/* printf()*/
#include <stdio.h>
void main(void)
{
printf(I love \ Algorithmization and programming!\\n);
}
| 8 |
/* <<*/
#include <iostream.h>
void main(void)
{
cout << I love\n;
cout << \Algorithmization and programming!\n);
}
| 9 |
/* printf()
: , ,
*/
#include <stdio.h>
void main(void)
{
printf(I am %s\nGroup: %s\nOrder number: %d\n, Ivanov Ivan, TA-0113, 1);
}
! 9, .
| 10 |
/*/ << >>
22,
*/
#include <iostream.h>
void main(void)
{
int a, b, c, d;
cout << "Input elements\n";
cin >> a >> b >> c >> d;
cout << Matrix 2x2\n;
cout << a << \t << b << \n;
cout << c << \t << d << \n;
}
:
Input elements
. Enter.
| 11 |
/* 10.
*/
#include <iostream.h>
# include <stdlib.h>
# include <time.h>
void main(void)
{
srand ((unsigned) time(NULL));
int a, b, c, d;
a = rand();
b = rand();
c = rand();
d = rand();
cout << Matrix 2x2\n;
cout << a << \t << b << \n;
cout << c << \t << d << \n;
}
. .
|
|
|
1) . ?
2) . , . ?
3) . . ?
4) / ?
5) ?
6) . ?
2
: ++.
:
1) , .
2) , .
3) , .
