如何把string的内容转化为byte[]

[ywcyj]

简单问题，大家看看

string a="12345678987654321";
byte[] b=new byte[0];

b=?

[athossmth]

string a="askdjfa;ldksfjwilgfj";
char[] c=a.ToCharArray();

[daguzhang]

string a="d343";
char[] aToArray=a.ToCharArray();
Encoder enc=Encoding.Default.GetEncoder();
byte[] b=new byte[10];
enc.GetBytes(aToArray,0,aToArray.Length,b,0,false);
foreach( byte c in b)
MessageBox.Show(Convert.ToString(c));

[gengwei80]

string temp = "this is a test";
byte[] msg = Encoding.ASCII.GetBytes(temp);

[wnlovezxm]

=0

[wzs_wzs123]

BitConverter.GetBytes

[myxs]

byte[] msg = Encoding.ASCII.GetBytes(temp);
或者：
System.Convert.Tochar(string);

[Lovest]

Encoding.GetBytes(String)

[jinbao]

Encoding

[Piyongcai]

string temp = "this is a test";
byte[] msg = System.Text.Encoding.ASCII.GetBytes(temp);

[云孤天]

// 把十六进制字符串转换成字节型，返回字节型数组
public byte[] StringToByte(string InString)
{
string[] ByteStrings;
ByteStrings = InString.Split(" ".ToCharArray());
byte[] ByteOut;
ByteOut = new byte[ByteStrings.Length-1];
for (int i = 0;i==ByteStrings.Length-1;i++)
{
ByteOut[i] = Convert.ToByte(("0x" + ByteStrings[i]));
}
return ByteOut;
}

[liduke]

string.ToCharArray();

[hbzxf]

a="ddddddddddddddd";
char[] b = a.ToCharArray();

[ywcyj]

呵呵,谢过各位

[亲密数]

string temp = "this is a test";
byte[] msg = Encoding.ASCII.GetBytes(temp);

这种方法可以

[stan0714]

上面说的都对，但是只能对English.
我给一个例子，汉字都可以的：

string aa="哈阿";
byte[] bt=new byte[0];
UnicodeEncoding ue=new UnicodeEncoding();
bt=ue.GetBytes(aa);
Console.WriteLine(aa);

string bb=ue.GetString(bt);
Console.WriteLine(bb);

[killygirl]

我看上面不少都有问题，似乎有数据溢出啊……

[wangjunhua24]

上面的老兄不错