正则表达式截取字符串的方法技巧_正则表达式_

 int a = Convert.ToInt32(txt1.Text.Trim().Replace('[', ']').Split(']')[1]); string b = txt1.Text.Trim().Replace('[', ']').Split(']')[2]; 

 string str = "[数字]字符串"; Regex reg = new Regex(@" ([^]+)\](.*)"); string a= Convert.ToInt32( reg.Match(str).Groups[1].Value); string b= Convert.ToInt32( reg.Match(str).Groups[2].Value);

 string tempStr = "[数字]字符串"; string pattern = @" ([\s§]∗) ([\s\S]*)"; Regex re = new Regex(pattern); string str1 = Regex.Replace(tempStr,pattern,"$1"); string str2 = Regex.Replace(tempStr, pattern, "$2");

 /// 
 /// 返回一个字符串数组 /// 
 ///  ///  public string[] ReturnIDAndName(string str) { string[] stringArray = new string[2]; Regex reg = new Regex(@" ([^]+)\](.*)"); stringArray[0]= reg.Match(str).Groups[1].Value; stringArray[1] = reg.Match(str).Groups[2].Value; return stringArray; } /// 
 /// 截取字符串编号 /// 
 public int ReturnId(string str) { try { if (string.IsNullOrEmpty(str)) { return 0; } Regex regex = new Regex("(?<=\\[)\\d+(?=\\])"); Match m = regex.Match(str); int pid; if (!m.Success) { pid = int.Parse("[" + regex.Match(str).Value + "]"); } return int.Parse(regex.Match(str).Value); } catch { return 0; } }