using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;



namespace 日月选择器

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }



        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)

        {    

            comboBox2.Items.Clear();

            string s = comboBox1.Text;

            if (s == "2")

            {

                for (int i = 1; i <= 28; i++)

                {

                    comboBox2.Items.Add(i);                                                                           }

            }

            else if (s == "4" || s == "6" || s == "9" || s == "11")

            {

                for (int i = 1; i <= 30; i++)

                {

                    comboBox2.Items.Add(i);

                }

            }



            else

            {

                for (int i = 1; i <= 31; i++)

                {

             &nb