算術運算子

C++中的算術運算子與數學中的算術運算子具有相同的優先順序：

乘法和除法具有左相關性（意味著它們將從左到右進行評估）並且它們具有比加法和減法更高的優先順序，其也具有左關聯性。

我們也可以使用括號 ( ) 強制表示式的優先順序。就像你在普通數學中那樣做。

// volume of a spherical shell = 4 pi R^3 - 4 pi r^3
double vol = 4.0*pi*R*R*R/3.0 - 4.0*pi*r*r*r/3.0;

//Addition:

int a = 2+4/2;          // equal to: 2+(4/2)         result: 4
int b = (3+3)/2;        // equal to: (3+3)/2         result: 3

//With Multiplication

int c = 3+4/2*6;        // equal to: 3+((4/2)*6)     result: 15
int d = 3*(3+6)/9;      // equal to: (3*(3+6))/9     result: 3

//Division and Modulo

int g = 3-3%1;          // equal to: 3 % 1 = 0  3 - 0 = 3
int h = 3-(3%1);        // equal to: 3 % 1 = 0  3 - 0 = 3
int i = 3-3/1%3;        // equal to: 3 / 1 = 3  3 % 3 = 0  3 - 0 = 3
int l = 3-(3/1)%3;      // equal to: 3 / 1 = 3  3 % 3 = 0  3 - 0 = 3
int m = 3-(3/(1%3));    // equal to: 1 % 3 = 1  3 / 1 = 3  3 - 3 = 0