# include <iostream>
# include <iomanip>
# include <array>
//c++17
using namespace std;
int main()
{
// 习题1
auto values{ array<int,50>{} };
size_t count = size(values);
for(auto p = &values[0]; p!= &values[0] + count; ++p)
{
*p = 2*(p-&values[0]) +1;
}
for(size_t i{}; i!= size(values);++i)
{
cout << setw(4) << values[i] ;
if ((i+1)% 10 ==0) cout << endl;
}
cout << endl;
size_t i{};
auto p = &values[0]+count;
do{
cout << setw(4) << *--p;
if ((i+++1)%10==0) cout << endl;
}
while(p != &values[0]);
}
| 
发表于 2021-6-2 14:42
