#include int main2() { //1、前置递增 //int a = 10; //++a; //让变量进行+1的操作 //std::cout << "a = " << a << std::endl; //2、后置递增 //int b = 10; //b++; //std::cout << "b = " << b << std::endl; //3、前置和后置的区别 //前置递增 先让变量+1 然后进行表达式计算 int a2 = 10; int b2 = ++a2 * 10; std::cout << "a2 = " << a2 << std::endl; std::cout << "b2 = " << b2 << std::endl; //后置递增 先进行表达式计算 后让变量+1 int a3 = 10; int b3 = a3++ * 10; std::cout << "a3 = " << a3 << std::endl; std::cout << "b3 = " << b3 << std::endl; system("pause"); return 0; }