C++指针变量不能使用++运算符吗？

Question

#include<iostream>int main(){ using namespace std; int updates = 6; int * p_updates; p_updates = &updates; cout << "updates\t" << updates << endl << "* p_updates" << *p_updates << endl << "&updates" << &updates << endl << "p_updates" << p_updates << endl; *p_updates= *p_updates+1; cout << "*p_updates+1\n";///////////////////////?????? cout << *p_updates << "\t\t\t" << updates << endl; *p_updates++; cout << "*p_updates++\n";//////////////////////////////?????? cout << *p_updates<< "\t\t\t"<< updates << endl; return 0;}程序在上，运行结果如图，请问为什么*p_updates+1是有效的而*p_updates++就没有效果呢

Answer 1

it should be (*pa)++.

int a = 10;
int *pa = &a;
(*pa)++;
std::cout<< a << " "<< &a << std::endl;
std::cout<< *pa <<" "<< pa << std::endl;

Answer 2

能使用++运算符，帮你。