When using Python to do network programming will inevitably encounter convert a string to the byte stream,Here we record the following commonly used methods:
First byte array to a string,That is str:
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						b = b'some byte array' str(b, encoding = "utf-8")   #or bytes.decode(b)  | 
					
Then the string to a byte array:
[crayon-6909f9fbdb3779276[……]