去掉每行的行号及将中文标点转化成英文

/// <summary>
/// 字符串的截断
/// </summary>
/// <param name="charDel">从字符之前被截断</param>
private string[] DelBeforeChar(string[] txt, char charDel)
{
//string[] txt = richTextBox1.Lines;
string[] newtxt = new string[txt.Length];
for (int i = 0; i < txt.Length; i++)
{
newtxt[i] = txt[i].Substring(txt[i].IndexOf(charDel) + 1);
}
return newtxt;
}
/// <summary>半角转成全角
/// 半角空格32,全角空格12288
/// 其他字符半角33~126,其他字符全角65281~65374,相差65248
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public string DBCToSBC(string input)
{
char[] cc = input.ToCharArray();
for (int i = 0; i < cc.Length; i++)
{
if (cc[i] == 32)
{
// 表示空格
cc[i] = (char)12288;
continue;
}
if (cc[i] < 127 && cc[i] > 32)
{
cc[i] = (char)(cc[i] + 65248);
}
}
return new string(cc);
}
/// <summary>全角转半角
/// 半角空格32,全角空格12288
/// 其他字符半角33~126,其他字符全角65281~65374,相差65248
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public string SBCToDBC(string input)
{
char[] cc = input.ToCharArray();
for (int i = 0; i < cc.Length; i++)
{
if (cc[i] == 12288)
{
// 表示空格
cc[i] = (char)32;
continue;
}
if (cc[i] > 65280 && cc[i] < 65375)
{
cc[i] = (char)(cc[i] - 65248);
}
}
return new string(cc);
}
private string[] ChineseToEnglish(string[] txt)
{
string[] ChineseInterpunction = new string[] { "“", "”", "‘", "’", "。", "，", "；", "：", "？", "！", "……", "—", "～", "（", "）", "《", "》" };
string[] EnglishInterpunction = new string[] { "/"", "/"", "'", "'", ".", ",", ";", ":", "?", "!", "…", "-", "~", "(", ")", "<", ">" };
for (int i = 0; i < txt.Length; i++)
{
for (int j = 0; j < ChineseInterpunction.Length; j++)
{
txt[i] = txt[i].Replace(ChineseInterpunction[j], EnglishInterpunction[j]);
}
}
return txt;
}
/// <summary>
/// 去掉的按钮事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button2_Click(object sender, EventArgs e)
{
string[] txt = richTextBox1.Lines;
string[] newtxt = new string[richTextBox1.Lines.Length];
newtxt = txt;
if (radioButton1.Checked == true)
{
newtxt = DelBeforeChar(newtxt, Convert.ToChar(radioButton1. Text.ToString()));
}
if (radioButton2.Checked == true)
{
newtxt = DelBeforeChar(newtxt, '.');
}
if (checkBox1.Checked == true)
{
newtxt = ChineseToEnglish(newtxt);
}
richTextBox2.Lines = newtxt;
}