bytearray([source [, encoding [, errors]]])
中文说明:
bytearray([source [, encoding [, errors]]])返回一个byte数组。bytearray类型是一个可变的序列,并且序列中的元素的取值范围为 [0 ,255]。
参数source:
如果source为整数,则返回一个长度为source的初始化数组;
如果source为字符串,则按照指定的encoding将字符串转换为字节序列;
如果source为可迭代类型,则元素必须为[0 ,255]中的整数;
立即学习“Python免费学习笔记(深入)”;
如果source为与buffer接口一致的对象,则此对象也可以被用于初始化bytearray.。
版本:在python2.6后新引入,在python3中同样可以使用!
英文说明:
Return a new array of bytes. The bytearray type is a mutable sequence of integers in the range 0
The optional source parameter can be used to initialize the array in a few different ways:
If it is a string, you must also give the encoding (and optionally, errors) parameters; bytearray() then converts the string to bytes using str.encode().
If it is an integer, the array will have that size and will be initialized with null bytes.
If it is an object conforming to the buffer interface, a read-only buffer of the object will be used to initialize the bytes array.
If it is an iterable, it must be an iterable of integers in the range 0
Without an argument, an array of size 0 is created.
New in version 2.6.
实例演示:
>>> a = bytearray(3) >>> a bytearray(b'\x00\x00\x00') >>> a[0] >>> a[1] >>> a[2] >>> b = bytearray("abc") >>> b bytearray(b'abc') >>> b[0] >>> b[1] >>> b[2] >>> c = bytearray([1, 2, 3]) >>> c bytearray(b'\x01\x02\x03') >>> c[0] >>> c[1] >>> c[2] >>> d = bytearray(buffer("abc")) >>> d bytearray(b'abc') >>> d[0] >>> d[1] >>> d[2]
python怎么学习?python怎么入门?python在哪学?python怎么学才快?不用担心,这里为大家提供了python速学教程(入门到精通),有需要的小伙伴保存下载就能学习啦!
Copyright 2014-2025 https://www.php.cn/ All Rights Reserved | php.cn | 湘ICP备2023035733号