C#年月日编程问题，急救 急救！两个功能实现

Question

年月日编程问题，急救 急救！，
一）
在一个textBox1里面输入小写日期，则在textBox1里面大写的同时，把 年 月  日 分别留一个位置出来
（比如 二零一一   十二   零一）；同时在textBox2里面是小写 比如（2011   12   01）
这个功能怎么实现，小弟着急了，大哥们帮帮忙吧，高分求助！

Answer 1

DDTprivate void textBox1_TextChanged(object sender, EventArgs e)
        {
            string str = this.textBox1.Text;
            string change = "";
            string sb = "";
            char[] s = str.ToCharArray();
            foreach (char c in s)
            {
                switch (c.ToString())
                {
                    case "0":
                        change = "零";
                        break;
                    case "1":
                        change = "一";
                        break;                    case "2":
                        change = "二";
                        break;
                    case "3":
                        change = "三";
                        break;
                    case "4":
                        change = "四";
                        break;                    case "5":
                        change = "五";
                        break;
                    case "6":
                        change = "六";
                        break;
                    case "7":
                        change = "七";
                        break;
                    case "8":
                        change = "八";
                        break;
                    case "9":
                        change = "九";
                        break;
                    case " ":
                        change = " ";
                        break;
                }
                sb += change;
            }
            this.textBox2.Text = sb;
        }

Answer 2

经过测试，应该符合楼主的需求
在Form上放一个MaskedTextBox和 TextBox控件即可，MaskedTextBox用于输入数字，TextBox显示汉字
    public partial class Form1 : Form
    {
        private DateFormat dateFormatChecker = null;
        private const char Sep = ' ';
        private readonly string[] ChineseChar = new string[] { "零", "一", "二", "三", "四", "五", "六", "七", "八", "九", "十" };        public Form1()
        {
            InitializeComponent();
            this.maskedTextBox1.Mask = "0000 00 00";
            this.maskedTextBox1.ResetOnPrompt = false;
            this.maskedTextBox1.ResetOnSpace = false;
            maskedTextBox1.ValidatingType = typeof(DateFormat);
        }        private void maskedTextBox1_TypeValidationCompleted(object sender, TypeValidationEventArgs e)
        {
            if (e.IsValidInput)
            {
                label1.Text = string.Empty;
                dateFormatChecker = e.ReturnValue as DateFormat;
            }
            else
            {
                // error
                dateFormatChecker = null;
                label1.Text = "error date format";
            }
        }        private void maskedTextBox1_MaskInputRejected(object sender, MaskInputRejectedEventArgs e)
        {
            label1.Text = "input rejected: error date format";
        }        private void maskedTextBox1_TextChanged(object sender, EventArgs e)
        {
            string input = maskedTextBox1.Text;
            string[] parts = input.Split(' ');            string output = string.Empty;            if (parts.Length == 0)
            {
                textBox1.Text = output;
                return;
            }            // 处理 年
            if (parts.Length > 0)
            {
                string year = parts[0];
                for (int i = 0; i < year.Length; ++i)
                {
                    output += ChineseChar[int.Parse(year[i].ToString())];
                }            }            // 处理 月
            if (parts.Length > 1)
            {
                output += Sep.ToString();                string month = parts[1];
                output += ConvertDigitToChineseForMonthOrDay(month);
            }            // 处理 日
            if (parts.Length > 2)
            {
                output += Sep.ToString();                string month = parts[2];
                output += ConvertDigitToChineseForMonthOrDay(month);
            }            textBox1.Text = output;
        }        // 将月份或者日期转换成汉字显示的形式
        private string ConvertDigitToChineseForMonthOrDay(string s)
        {
            int len = s.Length;
            if (len == 0)
                return string.Empty;            string retValue = string.Empty;
            int val = int.Parse(s);
            // 获取10位的值
            int ten = val / 10;
            switch (ten)
            {
                case 0:
                    retValue += ChineseChar[0];
                    break;                case 1:
                    retValue += ChineseChar[10];
                    break;                default:
                    retValue += ChineseChar[ten];
                    retValue += ChineseChar[10];
                    break;
            }            // 获取个位的值
            int one = val - 10 * (val / 10);
            if (one != 0)
                retValue += ChineseChar[one];            return retValue;
        }    }    /// <summary>
    /// class used to validate user input
    /// </summary>
    public class DateFormat
    {
        private int mYear;
        private int mMonth;
        private int mDay;        private const char Sep = ' ';        public int Year
        {
            get { return mYear; }
            set { mYear = value; }
        }        public int Month
        {
            get { return mMonth; }
            set { mMonth = value; }
        }
        public int Day
        {
            get { return mDay; }
            set { mDay = value; }
        }        public DateFormat(int year, int month, int day)
        {
            Year = year;
            Month = month;
            Day = day;
        }        public override string ToString()
        {
            return string.Format("{0}{1}{2}{3}{4}", Year.ToString(), Sep, Month.ToString(), Sep, Day.ToString());
        }        public static DateFormat Parse(string input)
        {
            string[] parts = input.Split(Sep);
            if (parts.Length != 3)
            {
                throw new ArgumentException("invalid date format");
            }
            else
            {
                int year = 0;
                int month = 0;
                int day = 0;
                if (int.TryParse(parts[0], out year) &&
                    int.TryParse(parts[1], out month) &&
                    int.TryParse(parts[2], out day))
                {
                    try
                    {
                        DateTime dt = new DateTime(year, month, day);                        return new DateFormat(year, month, day);
                    }
                    catch (Exception ex)
                    {
                        // invalid day
                        throw;
                    }
                }
                throw new ArgumentException("invalid date format");
            }
        }
    }