完整读写txt 并提取{}里的内容

 using System;
 using System.Collections.Generic;
 using System.Data;
 using System.IO;
 using System.Linq;
 using System.Text;
 using System.Text.RegularExpressions;
 using System.Web;
 using System.Web.UI;
 using System.Web.UI.WebControls;

 namespace WebApplication1
 {
     public partial class WebForm2 : System.Web.UI.Page
     {
         //txt路径
         static string Path = "C:\\wb2.txt";
         static string path = "E:\\jrf\\文本2.txt";
         protected void Page_Load(object sender, EventArgs e)
         {
             ReadTxtContent(Path);
             Write(path);
         }
         /// <summary>
         /// 读取txt内容
         /// </summary>
         /// <param name="Path">文件地址</param>
         public string ReadTxtContent(string Path)
         {
             StreamReader sr = new StreamReader(Path, Encoding.Default);
             string content;
             string f="";
             while ((content = sr.ReadLine()) != null)//按行输出
             {
                 f+=content;
             }
             //截取{}的内容 再写入txt文件
             var array = f.Split('{');
             f = "";
             foreach (var x in array)
             {
                 if (x.Contains("}"))
                 {
                     string[] n = x.Split('}');
                     f += "{" + n[] + "}" + "\r\n";
                 }
             }
             return f;
         }
         /// <summary>
         /// 获取ReadTxtContent返回的内容写入.txt
         /// </summary>
         /// <param name="path"></param>
         public void Write(string path)
         {
             //FileMode.Append为不覆盖文件效果.create为覆盖
             FileStream fs = new FileStream(path, mode: FileMode.Append);
             StreamWriter sw = new StreamWriter(fs);
             //开始写入

             sw.Write(ReadTxtContent(Path));
             //清空缓冲区
             sw.Flush();
             //关闭
             sw.Close();
             fs.Close();
         }
     }
 }