python crc32两种校验方式

import binascii

#https://www.cnblogs.com/kerndev/p/5537379.html
#https://stackoverflow.com/questions/5557214/crc32-checksum-in-python-with-hex-input
def crc32asii(v):
    return '0x%8x' % (binascii.crc32(v) & 0xffffffff)


def crc2hex(crc): 
    return '%08x' % (binascii.crc32(binascii.a2b_hex(crc)) & 0xffffffff) 


s='1234567890'
b = bytes(s, encoding='utf-8')
print(crc32asii(b))

#1234567890的16进制为499602D2
d='499602D2'
print(crc2hex(d))