#include <iostream>using namespace std;int main(){ int a[6] = {1, 2, 3, 4, 5, 6}; int pi = 0; int pj = 5; int t, i; while (pi < pj) { t = a[pi]; a[pi] = a[pj]; a[pj] = t; pi++; pj--; } for (i = 0; i < 6; i++) cout << a[i] << ","; cout << endl; return 0;}输出：_________