### 第10节：Objective-C 算术运算符

+Adds two operandsA + B = 30
-Subtracts second operand from the firstA - B = -10
*Multiplies both operandsA * B = 200
/Divides numerator by denominatorB / A = 2
%Modulus Operator and remainder of after an integer divisionB % A = 0
++Increments operator increases integer value by oneA++ = 11
--Decrements operator decreases integer value by oneA-- = 9

## 例子

```#import <Foundation/Foundation.h>

main()
{
int a = 21;
int b = 10;
int c ;

c = a + b;
NSLog(@"Line 1 - Value of c is %d
", c );
c = a - b;
NSLog(@"Line 2 - Value of c is %d
", c );
c = a * b;
NSLog(@"Line 3 - Value of c is %d
", c );
c = a / b;
NSLog(@"Line 4 - Value of c is %d
", c );
c = a % b;
NSLog(@"Line 5 - Value of c is %d
", c );
c = a++;
NSLog(@"Line 6 - Value of c is %d
", c );
c = a--;
NSLog(@"Line 7 - Value of c is %d
", c );

}```

```2013-09-07 22:10:27.005 demo Line 1 - Value of c is 31
2013-09-07 22:10:27.005 demo Line 2 - Value of c is 11
2013-09-07 22:10:27.005 demo Line 3 - Value of c is 210
2013-09-07 22:10:27.005 demo Line 4 - Value of c is 2
2013-09-07 22:10:27.005 demo Line 5 - Value of c is 1
2013-09-07 22:10:27.005 demo Line 6 - Value of c is 21
2013-09-07 22:10:27.005 demo Line 7 - Value of c is 22```

0