C++ :

#include <iostream>
using namespace std;
int main() {
    int weather;
    cin >> weather;
    switch (weather) {
        case 1: cout << "穿轻便衣物"; break;
        case 2: cout << "穿长袖衣物"; break;
        case 3: cout << "穿雨衣"; break;
        case 4: cout << "穿厚衣物"; break;
        default: cout << "无效的输入";
    }
    return 0;
}