阅读从Console.In二进制数据 [英] Read binary data from Console.In
问题描述
有没有办法在C#读取从标准输入的二进制数据?
Is there any way to read binary data from stdin in C#?
在我的问题,我有一个启动并接收标准输入的二进制数据的程序。
基本上:
C:> myImageReader< someImage.jpg
In my problem I have a program which is started and receives binary data on stdin.
Basically:
C:>myImageReader < someImage.jpg
和我想编写一个程序,如:
And I would like to write a program like:
static class Program
{
static void Main()
{
Image img = new Bitmap(Console.In);
ShowImage(img);
}
}
不过Console.In是不是甲流,这是一个TextReader的。
(如果我试图读取到char [],该数据的TextReader间$ P $点,不要让我可以访问原始字节)。
However Console.In is not a Stream, it's a TextReader. (And if I attempt to read to char[], the TextReader interprets the data, not allowing me to get access to the raw bytes.)
任何人有关于如何访问实际二进制输入一个好主意?
Anyone got a good idea on how get access to the actual binary input?
干杯,
雷夫
推荐答案
要读取二进制,最好的办法是使用原始输入数据流 - 在这里展示stdin和stdout之间像回声
To read binary, the best approach is to use the raw input stream - here showing something like "echo" between stdin and stdout:
using (Stream stdin = Console.OpenStandardInput())
using (Stream stdout = Console.OpenStandardOutput())
{
byte[] buffer = new byte[2048];
int bytes;
while ((bytes = stdin.Read(buffer, 0, buffer.Length)) > 0) {
stdout.Write(buffer, 0, bytes);
}
}
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