求救byte[]转str问题
byte[] bytes = new byte[3];
bytes[0] = 83;
bytes[1] = 72;
bytes[2] = 0x00;
String str = new String(bytes);
String str1 = str + "1234567";

这段代码就是得不到我想要的结果，str1就是不对，怎么办呀
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up
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你这代码得到的结果是什么？

你想要的结果是什么？
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你得到的String应该是UTF编码的，如果你需要的是ASCII的，请用System.Text的Encoding类转换。
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需要将数组转换为unicode 字符的数组。
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string a="askdjfa;ldksfjwilgfj";
char[] c=a.ToCharArray();
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//命名空间
using System.Text;

//转string
byte[] Name = new byte[100];
string strName="asd";
ASCIIEncoding st = new ASCIIEncoding();
strName = st.GetString(Name);

//转byte[]
byte[] Name;
string sName = "Group1";
ASCIIEncoding st = new ASCIIEncoding();
Name = st.GetBytes(sName);
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byte[] bytOut = {....};
string Result = System.Text.Convert.ToBase64String(bytOut);
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是编码类型问题
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msdn的源码
using System;
using System.Text;

namespace ConvertExample
{
class ConvertExampleClass
{
static void Main()
{
string unicodeString = "This string contains the unicode character Pi(\u03a0)";

// Create two different encodings.
Encoding ascii = Encoding.ASCII;
Encoding unicode = Encoding.Unicode;

// Convert the string into a byte[].
byte[] unicodeBytes = unicode.GetBytes(unicodeString);

// Perform the conversion from one encoding to the other.
byte[] asciiBytes = Encoding.Convert(unicode, ascii, unicodeBytes);

// Convert the new byte[] into a char[] and then into a string.
// This is a slightly different approach to converting to illustrate
// the use of GetCharCount/GetChars.
char[] asciiChars = new char[ascii.GetCharCount(asciiBytes, 0, asciiBytes.Length)];

ascii.GetChars(asciiBytes, 0, asciiBytes.Length, asciiChars, 0);
string asciiString = new string(asciiChars);

// Display the strings created before and after the conversion.
Console.WriteLine("Original string: {0}", unicodeString);
Console.WriteLine("Ascii converted string: {0}", asciiString);
}
}
}

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使用内存流：
大概是：System.IO.BinaryReader br = new System.IO.BinaryReader(System.IO.MemoryStream(bytes,System.Text.Encoding...)
记不清了，自己可以查一下

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好贴啊，强顶一小下!