C#实现统计字数功能的方法

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Windows.Forms;using System.IO;namespace Program18{ public partial class FormMain : Form {  public FormMain()  {   InitializeComponent();  }  private void btnRead_Click(object sender, EventArgs e)  {   try   {    txtWords.Text = File.ReadAllText(txtFileAddr.Text);   }   catch (Exception ex)   {     MessageBox.Show(ex.Message);   }  }  private void txtWords_TextChanged(object sender, EventArgs e)  {   int iAllChr = 0; //字符总数：不计字符'/n'和'/r'   int iChineseChr = 0; //中文字符计数   int iChinesePnct = 0;//中文标点计数   int iEnglishChr = 0; //英文字符计数   int iEnglishPnct = 0;//中文标点计数   int iNumber = 0;  //数字字符：0-9   foreach (char ch in txtWords.Text)   {    if (ch != '/n' && ch != '/r') iAllChr++;    if ("～！＠＃￥％…＆（）―＋－＝".IndexOf(ch) != -1 ||     "｛｝【】：“”；‘'《》，。、？｜＼".IndexOf(ch) != -1) iChinesePnct++;    if (ch >= 0x4e00 && ch <= 0x9fbb) iChineseChr++;    if ("`~!@#$%^&*()_+-={}[]:/";'<>,.?///|".IndexOf(ch) != -1) iEnglishPnct++;    if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z')) iEnglishChr++;    if (ch >= '0' && ch <= '9') iNumber++;   }   string sStats = string.Format(string.Concat(    "字符总数：{0}/r/n", "中文字符数：{1}/r/n", "中文标点数：{2}/r/n",    "英文字符数：{3}/r/n", "英文标点数：{4}/r/n", "数字字符数：{5}/r/n"),    iAllChr.ToString(), iChineseChr.ToString(), iEnglishChr.ToString(),    iEnglishChr.ToString(), iEnglishPnct.ToString(), iNumber.ToString());   txtStats.Text = sStats;  } }}