C#与unity3D通信 字节数组转为字符串

Posted 2023-04-21

服务器发送： string messge;
messge = "111";
var date = ASCIIEncoding.UTF8.GetBytes(messge);
socket.Send(date); //正常发送

客户端接受： byte[] bt = new byte[1024];
int messgeLength = tcpSocket.Receive(bt);
string str = System.Text.Encoding.ASCII.GetString(bt);
Debug.Log(str); //正常接收并打印
if(String.Equals(str, "111")) //判等异常！
liansuo = true;

想问下 System.Text.Encoding.ASCII.GetString是将字节数组转换为字符串啊，为什么不能判等？

有两张方法：
方法一:
//字符串转byte
string StringMessage = "How Are you?";
Console.WriteLine("0", StringMessage);
System.Text.ASCIIEncoding ASCII = new System.Text.ASCIIEncoding();
Byte[] BytesMessage = ASCII.GetBytes(StringMessage);
//byte转字符串
Byte[] BytesMessage;
System.Text.ASCIIEncoding ASCII = new System.Text.ASCIIEncoding();
String StringMessage = ASCII.GetString( BytesMessage );

方法二:
//字符串转UTF-8 byte
string StringMessage = "Hello World How Are you? Pi /u03C0 Yen /uFFE5";
System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding();
Byte[] BytesMessage = UTF8.GetBytes(StringMessage);
//UTF-8 byte 转字符串
Byte[] BytesMessage;
System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding();
String StringMessage = UTF8.GetString( BytesMessage );追问

这几种方法我都尝试了，但判等的时候都不相等，不知道为什么？

参考技术A 这个问题你可以到paws3d上去看看，应该是有类似的案例的

C# 字节数组与字符串互相转换

string类型转成byte[]：

byte[] byteArray = System.Text.Encoding.Default.GetBytes ( str );

 

byte[]转成string：

string str = System.Text.Encoding.Default.GetString ( byteArray );

 

string类型转成ASCII byte[]：

（"01" 转成 byte[] = new byte[]{ 0x30,0x31}）

byte[] byteArray = System.Text.Encoding.ASCII.GetBytes ( str );

 

ASCIIbyte[]转成string：

（byte[] = new byte[]{ 0x30, 0x31} 转成"01"）

string str = System.Text.Encoding.ASCII.GetString ( byteArray );

 

byte[]转16进制格式string：

new byte[]{ 0x30, 0x31}转成"3031":

publicstaticstring ToHexString ( byte[] bytes ) // 0xae00cf => "AE00CF "

{string hexString = string.Empty;

if ( bytes != null )

{

StringBuilder strB = new StringBuilder ();

for ( int i = 0; i < bytes.Length; i++ )

{

strB.Append ( bytes[i].ToString ( "X2" ) );

}

hexString = strB.ToString ();

}return hexString;

}

 

16进制格式string 转byte[]：

publicstaticbyte[] GetBytes(string hexString, outint discarded)

{

discarded = 0;

string newString = "";

char c;// remove all none A-F, 0-9, charactersfor (int i=0; i<hexString.Length; i++)

{

c = hexString[i];if (IsHexDigit(c))

newString += c;

else

discarded++;

}// if odd number of characters, discard last characterif (newString.Length % 2 != 0){ discarded++;

newString = newString.Substring(0, newString.Length-1); }

int byteLength = newString.Length / 2;byte[] bytes = newbyte[byteLength];string hex;int j = 0;for (int i=0; i<bytes.Length; i++){

hex = new String(new Char[] {newString[j], newString[j+1]});

bytes[i] = HexToByte(hex); j = j+2;

}

return bytes;

}