c++ - 在 C++ 中将 for 循环转换为 while 循环

Question

我需要将这个 for 循环转换为 do while:

for (int i = 0; i <= input; i = i + 2)
{
    cout << name << " is number " << input << endl;
    total = total + i;
}
cout << endl;
cout << total << endl;

这是我目前所拥有的:

do
{
    cout << name << " is number " << input << endl;
    i += 2;
    total += i;
} while (i <= input);
cout << endl;
cout << total << endl;

它不会给出与 for 循环相同的总值。我做错了什么？

Answer 1

在将它递增 2 之前，你必须将 i 添加到总数中

所以 do..while 循环应该是这样的:

do
{
    cout << name << " is number " << input << endl;
    total += i;
    i += 2;
} while (i <= input);
cout << endl;
cout << total << endl;