namespace 测试1
 
{
 public partial class Form1 : Form
 {
 public Form1()
 {
  InitializeComponent();
  this.richTextBox1.Text = "g你\rs\rs你好吗d dsDDDDDDDDddssssss、‘\\奇巧';‘l;''''sssssssssssssssssssssssssssssssssssssssssssssssssssssssssasdddddddddddddddddddd\tddddddddddddddddddddddddddddddddddddddddddddddddda";
 }
 
 bool skipSpace = true;
 
 //窗口加载
 private void Form1_Load(object sender, EventArgs e)
 {
  richTextBox1.Focus();
  int cnt1=0, cnt2=0, cnt3=0, cnt4=0;
  if (this.richTextBox1.Text != null)
  {
  string sLine;
  string s = richTextBox1.Text;
  if (skipSpace)
  {
   {
   sLine = s.Replace("　?", "").Replace(" ", "").Replace("\t", "").Replace("\n", "").Replace("\r", "");
   cnt2 += getByteLength(sLine);
   cnt1 += getWordLength(sLine);
   cnt3 += getdigitalLength(sLine);
   cnt4 += getcharLength(sLine);
   textBox5.Text = cnt1.ToString();//字数
   textBox6.Text = cnt2.ToString();//字节数量（不含" ","\t","\n","\r","　?"）
   textBox7.Text = cnt3.ToString();//数字数量
   textBox8.Text = cnt4.ToString();//字母数量
   textBox9.Text = (cnt2 - cnt1).ToString();//汉字数量
   textBox10.Text = (cnt2 - cnt3 - cnt4 - (cnt2 - cnt1) * 2).ToString();//符号数量
   }
  }
  }
 }
 
 //richTextBox1.text内容改变事件
 private void richTextBox1_TextChanged(object sender, EventArgs e)
 {
  bool skipSpace = true;
  int cnt1=0, cnt2=0, cnt3=0, cnt4=0;
  if (this.richTextBox1.Text != null)
  {
  string sLine;
  string s = richTextBox1.Text;
  if (skipSpace)
  {
   sLine = s.Replace("　?", "").Replace(" ", "").Replace("\t", "").Replace("\n", "").Replace("\r", "");
   cnt2 += getByteLength(sLine);
   cnt1 += getWordLength(sLine);
   cnt3 += getdigitalLength(sLine);
   cnt4 += getcharLength(sLine);
   textBox5.Text = cnt1.ToString();//字数
   textBox6.Text = cnt2.ToString();//字节数量（不含" ","\t","\n","\r","　?"）
   textBox7.Text = cnt3.ToString();//数字数量
   textBox8.Text = cnt4.ToString();//字母数量
   textBox9.Text = (cnt2 - cnt1).ToString();//汉字数量
   textBox10.Text = (cnt2 - cnt3 - cnt4 - (cnt2 - cnt1)*2).ToString();//符号数量
  }
  }
 }
 
  /// 

 /// 返回字数
 /// 
 /// 
 /// 
 private int getWordLength(string s)
 {
  if (s != null)
  return s.Length;
  else
  return 0;
 }
 
 /// 

 /// 返回数字（0~9）字数数量
 /// 
 /// 
 /// 
 private int getdigitalLength(string s)
 {
  int lx = 0;
  char[] q = s.ToCharArray();
  for (int i = 0; i < q.Length; i++)
  {
  if ((int)q[i] >= 48 && (int)q[i] <= 57)
  {
   lx += 1;
  }
  }
  return lx;
 }
 
 /// 

 /// 返回字母（A~Z-a~z）字数数量
 /// 
 /// 
 /// 
 private int getcharLength(string s)
 {
  int lz = 0;
  char[] q = s.ToLower().ToCharArray();//大写字母转换成小写字母
  for (int i = 0; i < q.Length; i++)
  {
  if ((int)q[i] >= 97 && (int)q[i] <= 122)//小写字母
  {
   lz += 1;
  }
  }
  return lz;
 }
 
 /// 

 /// 返回字节数
 /// 
 /// 
 /// 
 private int getByteLength(string s)
 {
  int lh = 0;
  char[] q = s.ToCharArray();
  for (int i = 0; i < q.Length; i++)
  {
  if ((int)q[i] >= 0x4E00 && (int)q[i] <= 0x9FA5) // 汉字
  {
   lh += 2;
  }
  else
  {
   lh += 1;
  }
  }
  return lh;
 }
 }
}