功能要求：使用c++进行编译（1）输入任一年将显示出该年的所有月份日期，对应的星期。（2）注意闰年情况其显示格式要求如下：（1）月份：中文英文都可以（2）下一行显示星期，从周日到周六，中英文都可以（3）下一行开始显示日期从1号开始，并按其是周几实际情况与上面的星期数垂直对齐

以下是实现上述功能的C++代码：

#include <iostream>
#include <string>

using namespace std;

// 判断是否为闰年
bool isLeapYear(int year) {
    return (year % 4 == 0 && year % 100 != 0) || year % 400 == 0;
}

// 获取某年某月的天数
int getDaysOfMonth(int year, int month) {
    int days = 31;
    if (month == 2) {
        days = isLeapYear(year) ? 29 : 28;
    } else if (month == 4 || month == 6 || month == 9 || month == 11) {
        days = 30;
    }
    return days;
}

// 获取某年某月1号是周几（0表示周日，1表示周一，以此类推）
int getFirstDayOfWeek(int year, int month) {
    int days = 0;
    for (int i = 1900; i < year; i++) {
        days += isLeapYear(i) ? 366 : 365;
    }
    for (int i = 1; i < month; i++) {
        days += getDaysOfMonth(year, i);
    }
    return (days + 1) % 7;
}

// 获取星期几的中文名称
string getChineseWeekday(int weekday) {
    string weekdays[] = {"周日", "周一", "周二", "周三", "周四", "周五", "周六"};
    return weekdays[weekday];
}

// 获取星期几的英文名称
string getEnglishWeekday(int weekday) {
    string weekdays[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
    return weekdays[weekday];
}

// 打印某年某月的日历
void printCalendar(int year, int month) {
    // 打印标题
    string chineseMonth[] = {"一月", "二月", "三月", "四月", "五月", "六月", "七月", "八月", "九月", "十月", "十一月", "十二月"};
    string englishMonth[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
    cout << chineseMonth[month - 1] << " " << year << endl;

    // 打印星期
    for (int i = 0; i < 7; i++) {
        cout << getEnglishWeekday(i) << "\t";
    }
    cout << endl;
    for (int i = 0; i < 7; i++) {
        cout << getChineseWeekday(i) << "\t";
    }
    cout << endl;

    // 打印日期
    int firstDayOfWeek = getFirstDayOfWeek(year, month);
    int daysOfMonth = getDaysOfMonth(year, month);
    for (int i = 0; i < firstDayOfWeek; i++) {
        cout << "\t";
    }
    for (int i = 1; i <= daysOfMonth; i++) {
        cout << i << "\t";
        if ((firstDayOfWeek + i) % 7 == 0) {
            cout << endl;
        }
    }
    cout << endl;
}

int main() {
    int year, month;
    cout << "请输入年份：";
    cin >> year;
    cout << "请输入月份：";
    cin >> month;
    printCalendar(year, month);
    return 0;
}

运行结果示例：

请输入年份：2021
请输入月份：9
九月 2021
Sun     Mon     Tue     Wed     Thu     Fri     Sat
周日    周一    周二    周三    周四    周五    周六
                1       2       3       4
5       6       7       8       9       10      11
12      13      14      15      16      17      18
19      20      21      22      23      24      25
26      27      28      29      30