// 请在下面补充代码，实现函数printMonth(c++实现) /*************** Begin **************/ // 函数days：计算某年某月有多少天 // 参数：year-年，month-月 // 返回值：该年该月的天数

#include <iostream>

int days(int year, int month) {
    if (month == 2) {
        if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0) {
            return 29;
        } else {
            return 28;
        }
    } else if (month == 4 || month == 6 || month == 9 || month == 11) {
        return 30;
    } else {
        return 31;
    }
}

void printMonth(int year, int month) {
    std::cout << "Year: " << year << ", Month: " << month << std::endl;    std::cout << "Days: " << days(year, month) << std::endl;
}

int main() {
    int year, month;
    std::cout << "Enter year: ";
    std::cin >> year;
    std::cout << "Enter month: ";
    std::cin >> month;
    printMonth(year, month);
    return 0;
}