开时始，得到的中文文件中的字符是乱码的，鸟符号看的头晕。于是就细究streamreader读取的编码格式，默认的编码是ascii，单字节的，就尝试utf8，乱码；尝试gb2312，OK！

可另一个问题又出现了，得到的两个文件的行数都不到1500行，尝试N次还是不行，很郁闷。google了下，看到try catch，就想到释放缓冲区，结果很HAPPY！

复制代码 代码如下:

private static void FnFileProcess()

{

StreamReader reader = new StreamReader(@"d:1500.txt", Encoding.GetEncoding("GB2312"));

StreamWriter writerEn = new StreamWriter(@"d:English.txt", false, Encoding.UTF8, 1024);

StreamWriter writerCh = new StreamWriter(@"d:Chinese.txt", false, Encoding.UTF8, 1024);

try

{

int i = 1;

for (String line = reader.ReadLine(); line != null; line = reader.ReadLine())

{

if (i % 2 == 1)

{

writerEn.WriteLine(line);

}

else

{

writerCh.WriteLine(line);

}

i++;

}

Console.WriteLine(i + "tOK");

}

catch (Exception ex)

{

Console.WriteLine(ex.ToString());

}

finally

{

//不清空缓冲区，得到的文件总是少几十行

writerEn.Flush();

writerCh.Flush();

}

}