写入文件总结

方法二：
FileStream fs=new FileStream（sf.FileName,FileMode.Create）;

StreamWriter sw=new StreamWriter(fs);
sw.Write(textBox1.Text);
sw.Flush();
sw.Close();
fs.Close();






方法一：

//实例化一个文件流

FileStream fs=new FileStream（sf.FileName,FileMode.Create）;

//获得字节数组
byte[] date=new UTF8Encoding().GetBytes(this.textBox1.Text);
//开始写入
fs.Write(date,0,date.Length);
//清空缓冲区,关闭流
fs.Flush();
fs.Close();

 

方法三：
FileStream fs=new FileStream(sf.FileName,FileMode.Create);
BinaryWrite bw=new BinaryWrite(fs);
bw.Write(textBox1.Text);
bw.Flush();
bw.Close();
fs.Close();




//备注：其中fs为SaveFileDialog的实例

 

 

 

 ----2012-3-21

今天导师交给我的任务就是遍历数据 然后筛选每一行的第三个数据不是65535的，下面是我实现的代码：

?

private readonly static char[] split = new char[] { ',' };

 

        static void File()

        {

            try

            {

                using (StreamReader streamReader = new StreamReader(@"E:\result\result.csv", System.Text.Encoding.UTF8))

                {

                    string line;

                    while ((line = streamReader.ReadLine()) != null)

                    {

                        //判断第三个数据是否为65535

                        string[] str = line.Split(split);

                        //第三个数据不为65535 则把数据存储起来

                        if (!str[2].Equals("65535"))

                        {

                            try

                            {

                                using (StreamWriter streamWrite = new StreamWriter(@"E:\result\resultNew.csv", true, System.Text.Encoding.UTF8))

                                {

                                    streamWrite.WriteLine("{0},{1},{2}", str[0], str[1], str[2]);

                                }

                            }

                            catch (Exception ex)

                            {

                                Console.WriteLine(ex);

                            }

                        }

                        else

                            Console.WriteLine("****{0},{1},{2}", str[0], str[1], str[2]);

                        System.Console.WriteLine(line);

                    }

                }

            }

            catch (Exception ex)

            {

                System.Console.WriteLine(ex);

            }

 

 

 

            //System.Console.WriteLine(line);

        }

        static void Main(string[] args)

        {

            File();

        }