如何在Python中将字符串转换为字节数组
问题描述：
假设我有一个 4 个字符的字符串，我想将此字符串转换为一个字节数组，其中字符串中的每个字符都被转换为其等效的十六进制.例如
Say that I have a 4 character string, and I want to convert this string into a byte array where each character in the string is translated into its hex equivalent. e.g.
str = "ABCD"
我试图让我的输出成为
I'm trying to get my output to be
array('B', [41, 42, 43, 44])
有没有直接的方法来实现这一点?
Is there a straightforward way to accomplish this?
答
encode 函数可以帮到你，encode 返回一个编码后的字符串
encode function can help you here, encode returns an encoded version of the string
In [44]: str = "ABCD"
In [45]: [elem.encode("hex") for elem in str]
Out[45]: ['41', '42', '43', '44']
或者你可以使用数组模块
or you can use array module
In [49]: import array
In [50]: print array.array('B', "ABCD")
array('B', [65, 66, 67, 68])