Study this section of procedures , what will you think of?

# include <iostream.h>

void main()

{

int a,b,c,d,e,temp;

cout<<"Please input a number to a\n";

cin>>a;

temp=a;

b=(a++)+(a++)+(a++);

cout<<"The calculation type of b is b =(a++)+(a++)+(a++)\n ";

cout<<"The result is b="<<b<<"\n";

cout<<"Now a="<<a<<"\n\n";

a=temp;

c=(++a)+(++a)+(++a);

cout<<"The calculation type of c is c =(++a)+(++a)+(++a)\n ";

cout<<"The result is c="<<c<<"\n";

cout<<"Now a="<<a<<"\n\n";

a=temp;

d=(a++)+(++a)+(a++);

cout<<"The calculation type of d is d=(a++)+(++a)+(a++)\n ";

cout<<"The result is d="<<d<<"\n";

cout<<"Now a="<<a<<"\n\n";

a=temp;

e=(++a)+(++a)+(a++);

cout<<"The calculation type of e is e =(++a)+(++a)+(a++)\n ";

cout<<"The result is e="<<e<<"\n";

cout<<"Now a="<<a;

}

//vc 6.0编译通过，执行结果如下：

看看这些结果，你能想到程序的运算过程吗？？

在其他编译系统下试验一下上面的程序，得到的结果一样吗？？

如果你感兴趣可以试试~~