二进制文件读写代码

[guolianghu]

用C#编一段代码，产生一个二进制文件，内容为“程序员大本营”，产生的二进制文件不能用系统带的
编辑器编辑，即不能用文本编辑器打开看到真实内容。

[zpingy]

string s = "程序员大本营";
FileStream fs = new FileStream(@"d:\a.txt", FileMode.Create);
BinaryWriter br = new BinaryWriter(fs);
br.Write(s);
br.Close();
fs.Close();

[zpingy]

加个解码器：
string s = "程序员大本营";
FileStream fs = new FileStream(@"d:\a.txt", FileMode.Create);
BinaryWriter br = new BinaryWriter(fs,Encoding.Unicode);
br.Write(s);
br.Close();
fs.Close();

[liangxf0022]

用DES算法把文件加密了，文件名后缀仍然为.txt不就行了

[zyip]

楼上的代码可以用notepad打开的
//写入
string s = "程序员大本营";
byte[] buf = System.Text.Encoding.GetEncoding(936).GetBytes(s.ToCharArray());
for (int i = 0; i < buf.Length; i++)
{
buf[i]= (byte)(~buf[i]);
//Console.WriteLine(i.ToString());
}

//读取
FileStream fs = new FileStream(@"d:\a.txt", FileMode.Create);
fs.Write(buf, 0, (int)buf.Length);
fs.Close();
*/

byte[] buf = new byte[50];
FileStream fs = new FileStream(@"d:\a.txt", FileMode.Open);
fs.Read(buf, 0, (int)fs.Length);
for (int i = 0; i < fs.Length; i++)
{
buf[i] = (byte)(~buf[i]);
}
Console.WriteLine(System.Text.Encoding.GetEncoding(936).GetString(buf));

[zyip]

错了
/*
//写入
string s = "程序员大本营";
byte[] buf = System.Text.Encoding.GetEncoding(936).GetBytes(s.ToCharArray());
// Console.WriteLine(System.Text.Encoding.GetEncoding(936).GetString(buf));

for (int i = 0; i < buf.Length; i++)
{
buf[i]= (byte)(~buf[i]);
//Console.WriteLine(i.ToString());
}

FileStream fs = new FileStream(@"d:\a.txt", FileMode.Create);
fs.Write(buf, 0, (int)buf.Length);
fs.Close();
*/

//读取
byte[] buf = new byte[50];
FileStream fs = new FileStream(@"d:\a.txt", FileMode.Open);
fs.Read(buf, 0, (int)fs.Length);
for (int i = 0; i < fs.Length; i++)
{
buf[i] = (byte)(~buf[i]);
}
Console.WriteLine(System.Text.Encoding.GetEncoding(936).GetString(buf));