C#字符串分割,要怎么才能把下面的字符串详细地分离出来

string straa = "{\"reqCode\":\"a622b8505e0e409da088cc4336a05075\",\"result\":\"OK\",\"message\":\"\",\"extend1\":\"\",\"extend2\":\"\",\"extend3\":\"\",\"detailList01\":[{\"extend1\":\"U4BA7C43S20347601\",\"extend2\":\"N\",\"extend3\":\"1\"},{\"extend1\":\"U4BA7C43S20347602\",\"extend2\":\"N\",\"extend3\":\"2\"},{\"extend1\":\"U4BA7C43S20347603\",\"extend2\":\"N\",\"extend3\":\"3\"},{\"extend1\":\"U4BA7C43S20347604\",\"extend2\":\"N\",\"extend3\":\"4\"},{\"extend1\":\"U4BA7C43S20347605\",\"extend2\":\"N\",\"extend3\":\"5\"},{\"extend1\":\"U4BA7C43S20347606\",\"extend2\":\"N\",\"extend3\":\"6\"},{\"extend1\":\"U4BA7C43S20347607\",\"extend2\":\"N\",\"extend3\":\"7\"},{\"extend1\":\"U4BA7C43S20347608\",\"extend2\":\"N\",\"extend3\":\"8\"},{\"extend1\":\"U4BA7C43S20347609\",\"extend2\":\"N\",\"extend3\":\"9\"},{\"extend1\":\"U4BA7C43S20347618\",\"extend2\":\"N\",\"extend3\":\"10\"},{\"extend1\":\"U4BA7C43S20347617\",\"extend2\":\"N\",\"extend3\":\"11\"},{\"extend1\":\"U4BA7C43S20347616\",\"extend2\":\"N\",\"extend3\":\"12\"},{\"extend1\":\"U4BA7C43S20347615\",\"extend2\":\"X\",\"extend3\":\"13\"},{\"extend1\":\"U4BA7C43S20347614\",\"extend2\":\"N\",\"extend3\":\"14\"},{\"extend1\":\"U4BA7C43S20347613\",\"extend2\":\"N\",\"extend3\":\"15\"},{\"extend1\":\"U4BA7C43S20347612\",\"extend2\":\"N\",\"extend3\":\"16\"},{\"extend1\":\"U4BA7C43S20347611\",\"extend2\":\"X\",\"extend3\":\"17\"},{\"extend1\":\"U4BA7C43S20347610\",\"extend2\":\"N\",\"extend3\":\"18\"}]}";


 怎么把上面的字符串详细地分割出来???

第一步：先通过Json字符串创建实体类

先整理一下你的Json字符串，去掉转义符：

    class Program
    {
        private const string straa = "{\"reqCode\":\"a622b8505e0e409da088cc4336a05075\",\"result\":\"OK\",\"message\":\"\",\"extend1\":\"\",\"extend2\":\"\",\"extend3\":\"\",\"detailList01\":[{\"extend1\":\"U4BA7C43S20347601\",\"extend2\":\"N\",\"extend3\":\"1\"},{\"extend1\":\"U4BA7C43S20347602\",\"extend2\":\"N\",\"extend3\":\"2\"},{\"extend1\":\"U4BA7C43S20347603\",\"extend2\":\"N\",\"extend3\":\"3\"},{\"extend1\":\"U4BA7C43S20347604\",\"extend2\":\"N\",\"extend3\":\"4\"},{\"extend1\":\"U4BA7C43S20347605\",\"extend2\":\"N\",\"extend3\":\"5\"},{\"extend1\":\"U4BA7C43S20347606\",\"extend2\":\"N\",\"extend3\":\"6\"},{\"extend1\":\"U4BA7C43S20347607\",\"extend2\":\"N\",\"extend3\":\"7\"},{\"extend1\":\"U4BA7C43S20347608\",\"extend2\":\"N\",\"extend3\":\"8\"},{\"extend1\":\"U4BA7C43S20347609\",\"extend2\":\"N\",\"extend3\":\"9\"},{\"extend1\":\"U4BA7C43S20347618\",\"extend2\":\"N\",\"extend3\":\"10\"},{\"extend1\":\"U4BA7C43S20347617\",\"extend2\":\"N\",\"extend3\":\"11\"},{\"extend1\":\"U4BA7C43S20347616\",\"extend2\":\"N\",\"extend3\":\"12\"},{\"extend1\":\"U4BA7C43S20347615\",\"extend2\":\"X\",\"extend3\":\"13\"},{\"extend1\":\"U4BA7C43S20347614\",\"extend2\":\"N\",\"extend3\":\"14\"},{\"extend1\":\"U4BA7C43S20347613\",\"extend2\":\"N\",\"extend3\":\"15\"},{\"extend1\":\"U4BA7C43S20347612\",\"extend2\":\"N\",\"extend3\":\"16\"},{\"extend1\":\"U4BA7C43S20347611\",\"extend2\":\"X\",\"extend3\":\"17\"},{\"extend1\":\"U4BA7C43S20347610\",\"extend2\":\"N\",\"extend3\":\"18\"}]}";
        static void Main(string[] args)
        {
            JObject json = JObject.Parse(straa);
            Console.WriteLine(json.ToString());
            Console.ReadKey();
        }
    }

可在网页生成也可用插件(比如：Json转C#实体类)
图片说明

得到以下代码：

    public class Item
    {
        public string extend1 { get; set; }
        public string extend2 { get; set; }
        public string extend3 { get; set; }
    }

    public class Root
    {
        public string reqCode { get; set; }
        public string result { get; set; }
        public string message { get; set; }
        public string extend1 { get; set; }
        public string extend2 { get; set; }
        public string extend3 { get; set; }
        public List<Item> detailList01 { get; set; }
    }

第二步：将你的Json字符串反序列化成为对象

最终完整代码如下：

using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace JsonParse
{
    class Program
    {
        private const string straa = "{\"reqCode\":\"a622b8505e0e409da088cc4336a05075\",\"result\":\"OK\",\"message\":\"\",\"extend1\":\"\",\"extend2\":\"\",\"extend3\":\"\",\"detailList01\":[{\"extend1\":\"U4BA7C43S20347601\",\"extend2\":\"N\",\"extend3\":\"1\"},{\"extend1\":\"U4BA7C43S20347602\",\"extend2\":\"N\",\"extend3\":\"2\"},{\"extend1\":\"U4BA7C43S20347603\",\"extend2\":\"N\",\"extend3\":\"3\"},{\"extend1\":\"U4BA7C43S20347604\",\"extend2\":\"N\",\"extend3\":\"4\"},{\"extend1\":\"U4BA7C43S20347605\",\"extend2\":\"N\",\"extend3\":\"5\"},{\"extend1\":\"U4BA7C43S20347606\",\"extend2\":\"N\",\"extend3\":\"6\"},{\"extend1\":\"U4BA7C43S20347607\",\"extend2\":\"N\",\"extend3\":\"7\"},{\"extend1\":\"U4BA7C43S20347608\",\"extend2\":\"N\",\"extend3\":\"8\"},{\"extend1\":\"U4BA7C43S20347609\",\"extend2\":\"N\",\"extend3\":\"9\"},{\"extend1\":\"U4BA7C43S20347618\",\"extend2\":\"N\",\"extend3\":\"10\"},{\"extend1\":\"U4BA7C43S20347617\",\"extend2\":\"N\",\"extend3\":\"11\"},{\"extend1\":\"U4BA7C43S20347616\",\"extend2\":\"N\",\"extend3\":\"12\"},{\"extend1\":\"U4BA7C43S20347615\",\"extend2\":\"X\",\"extend3\":\"13\"},{\"extend1\":\"U4BA7C43S20347614\",\"extend2\":\"N\",\"extend3\":\"14\"},{\"extend1\":\"U4BA7C43S20347613\",\"extend2\":\"N\",\"extend3\":\"15\"},{\"extend1\":\"U4BA7C43S20347612\",\"extend2\":\"N\",\"extend3\":\"16\"},{\"extend1\":\"U4BA7C43S20347611\",\"extend2\":\"X\",\"extend3\":\"17\"},{\"extend1\":\"U4BA7C43S20347610\",\"extend2\":\"N\",\"extend3\":\"18\"}]}";
        static void Main(string[] args)
        {
            Root root = JsonConvert.DeserializeObject<Root>(straa);
            Console.WriteLine("reqCode = " + root.reqCode);
            Console.WriteLine("result  = " + root.result);
            Console.ReadKey();
        }
    }

    public class Item
    {
        public string extend1 { get; set; }
        public string extend2 { get; set; }
        public string extend3 { get; set; }
    }

    public class Root
    {
        public string reqCode { get; set; }
        public string result { get; set; }
        public string message { get; set; }
        public string extend1 { get; set; }
        public string extend2 { get; set; }
        public string extend3 { get; set; }
        public List<Item> detailList01 { get; set; }
    }
}

执行结果：
图片说明

上面不是json字符串吗，使用NuGet安装Newtonsoft.Json，把它解析成dynamic或一个对应的实体类

用法
https://www.cnblogs.com/xcsn/p/4444585.html

下载一个Newtonsoft.Json，引用到项目
dynamic obj = JObject.Parse(straa);
string rc = obj.reqCode; //返回 a622b8505e0e409da088cc4336a05075
...