Four methods C # byte [] turn string, string transfer byte [] of

 

 

Reprinted: https: //blog.csdn.net/tom_221x/article/details/71643015

The first

1. string  str    = System.Text.Encoding.UTF8.GetString(bytes);
2. byte[] decBytes = System.Text.Encoding.UTF8.GetBytes(str);

The same, System.Text.Encoding.Default, System.Text.Encoding.ASCII also possible. It may also be used System.Text.Encoding.UTF8.GetString (bytes) .TrimEnd ( '\ 0') to the end of the string with the identification.

 

The second

1. string    str    = BitConverter.ToString(bytes); 
2. String[] tempArr = str.Split('-');
3. byte[]   decBytes = new byte[tempArr.Length];
4. for (int i = 0; i < tempArr.Length; i++)
5. {
6.     decBytes[i] = Convert.ToByte(tempArr[i], 16);
7. }

This method will add the string '-' hyphen, and there is no function converts back. It needs to be converted manually bytes.

 

The third

1. string str      = Convert.ToBase64String(bytes); 
2. byte[] decBytes = Convert.FromBase64String(str);

This method is simple and clear, perfect, no problem. It is noted that, out of the converted string may contain '+', '/', '=' if it is as url addresses, required encode.

Fourth

1. string  str    = HttpServerUtility.UrlTokenEncode(bytes); 
2. byte[] decBytes = HttpServerUtility.UrlTokenDecode(str);

This method will automatically encode url address special characters can be directly used as the url address to use. But need to rely on System.Web library to use.