C++ 超简代码：快速求输入整数各位数字之和

```cpp #include <iostream> using namespace std; int main() { int n, sum = 0; cin >> n; while (n) { sum += n % 10; n /= 10; } cout << sum; return 0; } ``` ######[AI问答 | 63点数解答 | 2025-11-30 19:17:56]