C++ :

#include <iostream>
using namespace std;
int main() {
    int month;
    cin >> month;
    switch (month) {
        case 12: case 1: case 2: cout << "冬季"; break;
        case 3: case 4: case 5: cout << "春季"; break;
        case 6: case 7: case 8: cout << "夏季"; break;
        case 9: case 10: case 11: cout << "秋季"; break;
        default: cout << "无效的输入";
    }
    return 0;
}