星期一、星期二等。在C++中的给定月份中

#include <iostream>
#include <ctime>

int main() {
    // 获取当前日期和时间
    std::time_t now = std::time(nullptr);
    std::tm* current_date = std::localtime(&now);

    // 获取当前月份的年份和月份
    int year = current_date->tm_year + 1900;
    int month = current_date->tm_mon + 1;

    // 获取给定月份的第一天的日期和时间
    std::tm first_day = *current_date;
    first_day.tm_mday = 1;
    std::mktime(&first_day);

    // 计算给定月份中的星期一、星期二等
    for (int day = 1; day <= 31; day++) {
        std::tm current_day = first_day;
        current_day.tm_mday = day;
        std::mktime(&current_day);

        // 判断当前日期是否为给定的星期一、星期二等
        if (current_day.tm_wday == 1) {
            std::cout << "星期一：" << year << "年" << month << "月" << day << "日" << std::endl;
        } else if (current_day.tm_wday == 2) {
            std::cout << "星期二：" << year << "年" << month << "月" << day << "日" << std::endl;
        }
        // 继续判断其他星期几...
    }

    return 0;
}