C语言的操作符号

#include <iostream>
int main(void)
{
	int a = 100, b = 40;
	//理解++在前还后的区别；
	a = b++;	//a = b ; b= b+1;
	//a = ++b;	//b = b+1;	a = b;
	std::cout << a << std::endl;
	std::cout << b << std::endl;
	return 0;
}