x = 5 / 3 ( 1)
4) % - (3) ( )
= 5%3 ( 2)
5) + sum = 20+10; sum = 20 + x; sum = hou + sec; (4)
6) (4)
7) -- ++ 1 (2)
2 ++i - ( i ) i++ - ()
++size < 18,5 , 18,5
size++ <18,5 , 1.
: y=2; n=3;
y=n++ y n, n 1. y 3, n - 4
next=(y+n++)*6; , n 1 ( ) (2+3)*6=30; n=4;
next=(y+(++n))*6; n 1. (2+4)*6=36; n=4;
8) sizeof (2)
( ) sizeof (int); sizeof x;
9) = (15)
= . .
val = 3,75; PI = 3,14;
i = i+1; , = , . i 1 i.
( )
y = x = z = 1;
. = :
3,75 = val
10) , ()
=5, =24; (16)
, , . ( ).
<, (7) > =, (7)
<=, (7) != (8)
> (7) = =. (8)
. .
= = =. (=) . (= =) , .
(0 1). .
float < >, .. , , . ( 3*1/3 1,0, 1/3 0,999999, 1)
, +, -.
|
|
|
y > x+2; - , .
, .
1) && "" ( .)
, , &&. , . (12)
2) || "" ( .)
, . , (13)
3)! "" () (2)
:
| x | y | && | || | ! |
| 0 11 | ||||
:
if(x>0 && x<10)
5>2 && 4>7 -
5>2 || 4>7 -
!(4>7)
! () ( ). && || , .
a>b && b>c || b>d
((a>b) && (b>c) || (b>d))
. . char. , , .
1) ~ 1 . 1 0, 0 1.
~(11010) (00101)
2) & . . 1, 1
(10010011) & (00111101) => (00010001)
3) | . . 1, ( ) 1.
(10010011) | (00111101) => (10111111)
4) ^ . 1, 1 ( )
(10010011) ^ (00111101) => (10101110)
. . . .
1) << , . , , , .
(10001010)<<2 = = 00101000
2) >> , . , , . . .
(10001010)>>2 = = 00100010
2:
number<<n number 2 n-
number>>n number 2 n-
6.6. ?:
(? :) (1? 2: 3). if else .
|
|
|
: x = (y<0)? y: y; , 0, = -, = . if else :
if(y<0)
x = -y;
else
x = y;
.
.. 1 , 2, 1 2.
, , .
max = (>b)? a: b;
. ( ). , :
1. 2- , ( "" ).
2. : double, float, long, int, short, char. unsigned .
3. , ( ). "" .
4. float double ( , ). float, .
, . .
int num;
num = 1,6+1,7; 3,3 => 3. , .
num = (int)1,6+(int)1,7; 1+1 = 2. , , .
