1. F
F F
+
--
*
/
% ( )
19

2. F
F F ( )
F F F F
float money;float money;
F float ˈ integer F
(int) money;
int cost;
cost = 2.7+4.5;
cost = (int)2.7+(int)4.5;
20

3. F F
++n F n 1
- -n F n 1
F F count++ ++countF F count++ ++count
F
count = 5;
x = count++; F F x F 5
F F count F 6
count = 5;
x = ++count; F F x F 6
21

4. F F (Assignment expression)
F F =
ˈ F
F F F F j = 7+2 k = k+4
F
> >= F F F
< <= F F F F F
== F
!= F F
22

5. F = ==
= ˈ F
== ˈ F F
point = 44;point = 44;
ˈ F F point F F F 44
point == 44;
ˈ F F point F F 44 F
23

6. F F
&& (and)
| | (or)
! F (not)! F (not)
F F
F 1 && F 2 ˈ F ˈ
F 1 | | F 2 ˈ F F
ˈ F ˈ
! F ˈ F ˈ
24