简介
str是采用Unicode编码方式的序列，主要用于显示
bytes是字节序列，主要用于网络和文件传输
bytearray和bytes是一样的，只是它是可变的，它们的关系和str与list类似
str和bytes的相互转化就是编码和解码
str转bytes
使用函数encode
In [2]: s1 = "123abc456ffff"
In [4]: b = s1.encode("utf-8")
In [5]: print(b)
b'123abc456ffff'
In [6]: bytes转str
使用函数decode
In [6]: s2 = b.decode("utf-8")
In [7]: print(s2)
123abc456ffff
In [8]: 如果是定义一个bytes：
b = b'123abc456ffff'
bytes和str转化为bytearray
bytes和str转化为bytearray都依赖于bytearray函数
bytes --> bytearray
In [8]: b = b'dafafasfasfsad22136436' In [10]: s1 = bytearray(b) In [11]: print(s1) bytearray(b'dafafasfasfsad22136436') In [12]:
str–>bytearray
In [8]: b = 'dafafasfasfsad22136436' In [10]: s1 = bytearray(b) In [11]: print(s1) bytearray(b'dafafasfasfsad22136436') In [12]:
hex字符串转为bytearray
In [12]: hexs = "1289" In [13]: br = bytearray.fromhex(hexs) In [14]: print(br) bytearray(b'\x12\x89') In [15]:
bytearray转为str和bytes
byarray=bytearray("aabbcc",encoding='utf-8')
str=byarray.decode('utf-8')
bytes=bytes(byarray)
print (byarray)
bytearray(b'aabbcc')
print(str)
aabbcc
print(bytes)
b'aabbcc'原文地址：https://blog.csdn.net/qq_21386397/article/details/106326946