请求用正则匹配一个值。

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Text.RegularExpressions;



namespace ConsoleApplication1

{

    class Program

    {

        static void Main(string[] args)

        {

            string s = @"&&&{""passToken"":""Aq3FBlXT880Y+FyC7LB8rWGVyfCWqMkOkh6Wkpuxc0tfKkt70RoSL5FrTQMmaHJ0KMU1c0HJp2gsBCTSKiHtwWdDgb5gmg0K89BaIVqHD9rrwAyFM9zywIaobeiAgHK1lGhOwHg5Kw4hsyqsVxJOYvfdPikYiNQydlxWbLLjeZ+ISV275VHSMVl7HsxdGRZw+m+Ct64AB4/ouvF9gL5I2A=="",""ssecurity"":""pC6XeSO6ddZhDA9xxEVkug=="",""desc"":""成功"",""nonce"":920376860430596096,""location"":""https://account.xiaomi.com/sts?sid=passport&followup=%2Fpass%2FuserInfo%3FuserId%123456&sign=aLszqIkW597fzJ2WNrIcVGvLwWg%3D&auth=a7U64V4RyzUBie7POKXIm2OTj1evZqe1Ac0xPQYfvnYZ2FU%2F3crjzJkgEk3PinmxWSeOu%2BfiRVC%2FNadJtT9ZexuC32cfuktLUTxdwp0H2tckv92pkz%2B4LhntR2f6nDHP3oNO2%2BFFvfDBew5%2FB4mWX6k8jthUCyYs4pDs8qkCoZY%3D&nonce=8hWxcxbIVRkBYOrG&_ssign=RXPm%2F9Yrl9VwCMLXfFFcLVUj2ZQ%3D"",""userId"":12345678,""captchaUrl"":null,""psecurity"":""ffEwpBsdBQvS684YJPvQCw=="",""code"":0}";

            string result = Regex.Match(s, @"\""location\"":\""([^\""]+)\""").Groups[1].Value;

            Console.WriteLine(result);

        }

    }

}

补充：.NET技术 ,  C#

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