C#使用StreamWriter写入文件的方法

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace W
{
  class Program
  {
    static void Main(string[] args)
    {
      using (StreamWriter sw = new StreamWriter (@"c:\1.txt",true,Encoding.UTF8))
      {
        for (int i = 0; i < 100; i++)
        {
          sw.WriteLine(i);
        }
      }
      Console.WriteLine("写入完毕！");
    }
  }
}