using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
namespace Streams1
{
class Program
{
static void Main(string[] args)
{
string str = "H:\\yourfilename.doc";
string str1 = "H:\\yourfilename";
string str2 =".doc";
//FileStream fs1 = new FileStream(str);
int i = 0;
while (File.Exists(str))
{
i++;
str = str1 + i.ToString() + str2 ;
}
FileStream fs = new FileStream(str, FileMode.CreateNew, FileAccess.Write);
StreamWriter sw = new StreamWriter(fs);
Console.WriteLine("wirte some datas into the str:");
string str3 = Console.ReadLine();
sw.Write(str3);
sw.Flush();
sw.Close();
Console.ReadLine();
}
}
}
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