Python3中str、bytes、bytearray轉(zhuǎn)化的方法是什么

這篇文章主要講解了“Python3中str、bytes、bytearray轉(zhuǎn)化的方法是什么”，文中的講解內(nèi)容簡單清晰，易于學(xué)習(xí)與理解，下面請大家跟著小編的思路慢慢深入，一起來研究和學(xué)習(xí)“Python3中str、bytes、bytearray轉(zhuǎn)化的方法是什么”吧！

簡介

str是采用Unicode編碼方式的序列，主要用于顯示
bytes是字節(jié)序列，主要用于網(wǎng)絡(luò)和文件傳輸
bytearray和bytes是一樣的，只是它是可變的，它們的關(guān)系和str與list類似

str和bytes的相互轉(zhuǎn)化就是編碼和解碼

str轉(zhuǎn)bytes

使用函數(shù)encode

In [2]: s1 = "123abc456ffff"                                                                                                                                                                                                                                                           
In [4]: b = s1.encode("utf-8")                                                                                                                                                  
In [5]: print(b)                                                                                                                                                         
b'123abc456ffff'
In [6]:

bytes轉(zhuǎn)str

使用函數(shù)decode

In [6]: s2 = b.decode("utf-8")                                                                                                                                           
In [7]: print(s2)                                                                                                                                                        
123abc456ffff
In [8]:

如果是定義一個(gè)bytes：

b = b'123abc456ffff'

bytes和str轉(zhuǎn)化為bytearray

bytes和str轉(zhuǎn)化為bytearray都依賴于bytearray函數(shù)

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字符串轉(zhuǎn)為bytearray

In [12]: hexs = "1289"                                                                                                                              
In [13]: br = bytearray.fromhex(hexs)                                                                                                               
In [14]: print(br)                                                                                                                                  
bytearray(b'\x12\x89')
In [15]:

bytearray轉(zhuǎn)為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'

感謝各位的閱讀，以上就是“Python3中str、bytes、bytearray轉(zhuǎn)化的方法是什么”的內(nèi)容了，經(jīng)過本文的學(xué)習(xí)后，相信大家對Python3中str、bytes、bytearray轉(zhuǎn)化的方法是什么這一問題有了更深刻的體會，具體使用情況還需要大家實(shí)踐驗(yàn)證。這里是億速云，小編將為大家推送更多相關(guān)知識點(diǎn)的文章，歡迎關(guān)注！