Frm2.cs

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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 WindowsfORcOUNT
{
    public partial class Frm2 : Form
    {
        public Frm2()
        {
            InitializeComponent();
        }

        private void btnOther_Click(object sender, EventArgs e)
        {
            string strOther = txtOther.Text.Trim();
            lbString.Text = StrPwdHider(strOther);
            lbByte.Text = "字符byte个数" + StrLength(strOther).ToString() ;
            //lbString.Text = strOther.PadLeft(i, '0');
        }
        /// <summary>
        /// 用*号替换字符
        /// </summary>
        /// <param name="strOther"></param>
        /// <returns></returns>
        public string StrPwdHider(string strOther)
        {
            int i = strOther.Length;
            string str = string.Empty;
            for (int a = 0; a < i; a++)
            {
                str += "*";
            }
            str += DateTime.Now.ToString();
            return str; 
        }

        public int StrLength(string strOther)
        {
            if (strOther != null)
            {
                byte[] bs = ASCIIEncoding.ASCII.GetBytes("UTF-8");
                return bs.Count();
            }
            else
            {
                return 0;
            }


        }
        /// <summary>    
        ///  替换字符串   
        /// </summary>    
        /// <param name="str">待处理的字符串</param>