Python standard library: built-in function bytearray ([source [, encoding [, errors]), pythonbytearray

Python standard library: built-in function bytearray ([source [, encoding [, errors]), pythonbytearray

Returns a new byte array. The elements in this array are variable, and the value range of each element is 0 <= x <256. You can use the "Byte and byte array operations" section to view the content of the byte array. The following describes several special usage methods:

1. If source is a string, you must specify the encoding of endcoding to convert it to a proper byte for storage.

2. If source is an integer, the array is initialized to a null byte.

3. If source is an object with a buffer interface, the read-only interface is initially included in the array.

4. If source is an iteration object, all elements of this iteration object must conform to 0 <= x <256, so that they can be initialized to the array.

 

If no parameter is input, the array is initialized with 0 elements by default.

 

Example:

# Bytearray () function a = bytearray ('2017 Shenzhen ', 'utf-8') print (a) B = bytearray () print (B) c = [1234, 8] print (bytearray (c ))

The output result is as follows:

Bytearray (B '1234 \ xe6 \ xb7 \ xb1 \ xe5 \ x9c \ xb3 ')

Bytearray (B '')

Bytearray (B '\ x01 \ x04 \ x05 \ x07 \ x08 ')

Cai junsheng QQ: 9073204 Shenzhen

In pthon, bytearray ([source [, encoding [, errors]) explains what are the three variables behind it?

It is written in the document. Let's take a look at several situations.

How does python convert bytearray to a string?

Str (bytearray, encoding)