using System;
using System.Text.RegularExpressions;
namespace NetCore
{
class Program
{
static void Main(string[] args)
{
Regex regex = new Regex("\"aaa\":\"(.*?)\"");
// Regex regex = new Regex("<tag1>(.*?)</tag1>");
var v = regex.Match("{\"aaa\":\"aaaccc\"}");
string s = v.Groups[1].ToString();
Console.WriteLine(s);
}
}
}
