如何将mm/yy转换为日期格式？

import datetime

def convert_mm_yy_to_date(mm_yy):
    month, year = mm_yy.split('/')
    date_str = f'01/{month}/{year}'
    date = datetime.datetime.strptime(date_str, '%d/%m/%y').date()
    return date

mm_yy = '12/23'
date = convert_mm_yy_to_date(mm_yy)
print(date)

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class Main {
    public static void main(String[] args) {
        String mm_yy = "12/23";
        Date date = convertMmYyToDate(mm_yy);
        System.out.println(date);
    }

    public static Date convertMmYyToDate(String mm_yy) {
        String[] parts = mm_yy.split("/");
        String dateStr = "01/" + parts[0] + "/" + parts[1];
        SimpleDateFormat format = new SimpleDateFormat("dd/MM/yy");
        try {
            return format.parse(dateStr);
        } catch (ParseException e) {
            e.printStackTrace();
            return null;
        }
    }
}

function convertMmYyToDate(mm_yy) {
    var parts = mm_yy.split('/');
    var dateStr = '01/' + parts[0] + '/' + parts[1];
    var date = new Date(dateStr);
    return date;
}

var mm_yy = '12/23';
var date = convertMmYyToDate(mm_yy);
console.log(date);