首先
1 string filename = this.txtname.Text.Trim();
2 string filecontent = this.txtcontent.Text.Trim();
3
4 string FileDir = Server.MapPath("~/Files");
5 if (!Directory.Exists(FileDir)) //判断是否存在此文件夹
6 {
7 Directory.CreateDirectory(FileDir);
8 }
9 string FileTxtPath = "~/Files/" + filename + ".txt";
10 FileTxtPath = Server.MapPath(FileTxtPath);
11 if (!File.Exists(FileTxtPath))//判断是否存在此文本文件
12 {
13 FileStream _file = new FileStream(FileTxtPath, FileMode.Create, FileAccess.ReadWrite);
14 _file.Dispose();//非常重要哦，创建完文本文件要释放资源的，否则就会报错了
15 using (StreamWriter SW = File.CreateText(FileTxtPath))
16 {
17 SW.Write(filecontent);
18 SW.Dispose();
19
20 Server.ClearError();
21 }
22
23 }