進程中內存的佈局
參見:http://patmusing.blog.163.com/blog/static/135834960201001512358686/
常量區只讀不可寫。
靜態區可讀寫。
//所有代碼,在Code segment
//在Global data segment,const只是個語法標識,不放Constant segment
const double PI = 3.14159;
class Circle
{
public:
double calculate_area(double radius) {
//輸入參數、局部變量,在Stack segment
return PI*radius*radius;
}
};
void main(){
//"hellor world!"屬於文字常量,在Constant segment
char* str="hellor world!";
//p1動態分配,在Heap segment
Circle* p1=new Circle();
double area = p1->calculate_area();
delete p1;
p1 = NULL;
}