1.bytes转化为int
函数格式:int.from_bytes(bytes, byteorder, *, signed=False)
s1 = b’\xf1\xff’
print(int.from_bytes(s1, byteorder=’big’, signed=False))
print(int.from_bytes(s1, byteorder=’little’, signed=True))
运行结果:
F:\dev\python\python.exe F:/pyCharm/L02_Test/L02Interface/L02_Common/try_demo2.py
61951
-15
Process finished with exit code 0
2.bytes转化为str
str(bytes,[encoding,error])
decode(encoding)(python3)
b=b”hell0 world”
print(‘bytes –> str’)
print(str(b, encoding=”utf-8″))
print(str(b)) #默认utf8编码
运行结果:
F:\dev\python\python.exe F:/pyCharm/L02_Test/L02Interface/L02_Common/try_demo2.py
bytes –> str
hell0 world
b’hell0 world’
Process finished with exit code 0
3. int转为bytes
n=46000
print(n.to_bytes(length=2,byteorder=’big’,signed=False))