System.Text.RegularExpressions.Regex reg = new System.Text.RegularExpressions.Regex("^(上市公司)+$");
这样?Regex reg = new Regex(@"(?mn)^((?!上市公司).)*$"); MatchCollection mc = reg.Matches(yourStr); foreach(Match m in mc) { richTextBox2.Text += m.Value + "\n"; }
System.Text.RegularExpressions.Regex reg = new System.Text.RegularExpressions.Regex("^(上市公司)+$");
MatchCollection mc = reg.Matches(yourStr);
foreach(Match m in mc)
{
richTextBox2.Text += m.Value + "\n";
}