C# 获取JSON字符串中匹配起始标识的字符串
DEMO:
////// 获取字符串中多个匹配起止标志的字符串
///
///
///
///
///
public static List
{
if (string.IsNullOrWhiteSpace(inputString))
return null; //定义正则表达式，解析得到 [ 与 ] 之间的内容，内容包括 [ 和 ]
string patttern = string.Format(@"({0}).*?({1})", patternStart, patternEnd); //解析得到多个 [ 与 ] 之间内容，保存在 matches 中
List
MatchCollection matches = Regex.Matches(inputString, patttern, RegexOptions.IgnoreCase);
foreach (Match m in matches)
{
listItems.Add(m.Value.Replace(patternStart, "").Replace(patternEnd, ""));
} return listItems;
} ///
/// 获取字符串中单个匹配起止标志的字符串
///
///
///
///
///
public static string GetMatchWithoutStartEndFromString(string inputString, string patternStart, string patternEnd)
{
if (!string.IsNullOrWhiteSpace(inputString))
{
string patttern = string.Format(@"({0}).*?({1})", patternStart, patternEnd);
Match match = Regex.Match(inputString, patttern, RegexOptions.IgnoreCase);
if (match.Success)
{
return match.Value.Replace(patternStart, "").Replace(patternEnd, "");
}
} return string.Empty;
} 使用： string strUserName = StringHelper.GetMatchWithoutStartEndFromString(inputString, "\"UserName\":", ",");
var regex = new System.Text.RegularExpressions.Regex(@"^\d+$");
bool isMatch = regex.IsMatch(strUserName.Replace("\"", "").Replace("'", ""));
if (!isMatch)
{ }