C#：将字节数组转换为字符串并打印到控制台
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原文地址: http://stackoverflow.com/questions/10940883/
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C#: Converting byte array to string and printing out to console
提问by MxLDevs
public void parse_table(BinaryReader inFile)
{
byte[] idstring = inFile.ReadBytes(6);
Console.WriteLine(Convert.ToString(idstring));
}
It is a simple snippet: read the first 6 bytes of the file and convert that to a string.
这是一个简单的片段：读取文件的前 6 个字节并将其转换为字符串。
However the console shows System.Byte[].
但是控制台显示System.Byte[].
Maybe I'm using the wrong class for conversion. What should I be using? It will eventually be parsing filenames encoded in UTF-8, and I'm planning to use the same method to read all filenames.
也许我使用了错误的类进行转换。我应该使用什么？它最终将解析以 UTF-8 编码的文件名，我计划使用相同的方法来读取所有文件名。
采纳答案by Tom Studee
It's actually:
其实是：
Console.WriteLine(Encoding.Default.GetString(value));
or for UTF-8 specifically:
或专门针对 UTF-8：
Console.WriteLine(Encoding.UTF8.GetString(value));
回答by Jesse Webb
I was in a predicament where I had a signedbyte array (sbyte[]) as input to a Test class and I wanted to replace it with a normal byte array (byte[]) for simplicity. I arrived here from a Google search but Tom's answer wasn't useful to me.
我陷入了困境，我有一个带符号的字节数组 ( sbyte[]) 作为 Test 类的输入，byte[]为了简单起见，我想用普通的字节数组 ( )替换它。我是通过谷歌搜索来到这里的，但汤姆的回答对我没有用。
I wrote a helper method to print out the initializer of a given byte[]:
我写了一个辅助方法来打印给定的初始化程序byte[]：
public void PrintByteArray(byte[] bytes)
{
var sb = new StringBuilder("new byte[] { ");
foreach (var b in bytes)
{
sb.Append(b + ", ");
}
sb.Append("}");
Console.WriteLine(sb.ToString());
}
You can use it like this:
你可以这样使用它：
var signedBytes = new sbyte[] { 1, 2, 3, -1, -2, -3, 127, -128, 0, };
var unsignedBytes = UnsignedBytesFromSignedBytes(signedBytes);
PrintByteArray(unsignedBytes);
// output:
// new byte[] { 1, 2, 3, 255, 254, 253, 127, 128, 0, }
The ouput is valid C# which can then just be copied into your code.
输出是有效的 C#，然后可以将其复制到您的代码中。
And just for completeness, here is the UnsignedBytesFromSignedBytesmethod:
为了完整起见，这里是UnsignedBytesFromSignedBytes方法：
// http://stackoverflow.com/a/829994/346561
public static byte[] UnsignedBytesFromSignedBytes(sbyte[] signed)
{
var unsigned = new byte[signed.Length];
Buffer.BlockCopy(signed, 0, unsigned, 0, signed.Length);
return unsigned;
}
回答by Jammer
This is just an updated version of Jesse Webbs code that doesn't append the unnecessary trailing ,character.
这只是 Jesse Webbs 代码的更新版本，没有附加不必要的尾随,字符。
public static string PrintBytes(this byte[] byteArray)
{
var sb = new StringBuilder("new byte[] { ");
for(var i = 0; i < byteArray.Length;i++)
{
var b = byteArray[i];
sb.Append(b);
if (i < byteArray.Length -1)
{
sb.Append(", ");
}
}
sb.Append(" }");
return sb.ToString();
}
The output from this method would be:
此方法的输出将是：
new byte[] { 48, ... 135, 31, 178, 7, 157 }
回答by Daniel Ryan
I've used this simple code in my codebase:
我在我的代码库中使用了这个简单的代码：
static public string ToReadableByteArray(byte[] bytes)
{
return string.Join(", ", bytes);
}
To use:
使用：
Console.WriteLine(ToReadableByteArray(bytes));
回答by Amir Twito
byte[] bytes = { 1,2,3,4 };
string stringByte= BitConverter.ToString(bytes);
Console.WriteLine(stringByte);
回答by Derek
For some fun with linq and string interpolation:
对于 linq 和字符串插值的一些乐趣：
public string ByteArrayToString(byte[] bytes)
{
if ( bytes == null ) return "null";
string joinedBytes = string.Join(", ", bytes.Select(b => b.ToString()));
return $"new byte[] {{ {joinedBytes} }}";
}
Test cases:
测试用例：
byte[] bytes = { 1, 2, 3, 4 };
ByteArrayToString( bytes ) .Dump();
ByteArrayToString(null).Dump();
ByteArrayToString(new byte[] {} ) .Dump();
Output:
输出：
new byte[] { 1, 2, 3, 4 }
null
new byte[] { }
