使用此代码获取字符串并将其转换为二进制:
bin(reduce(lambda x, y: 256*x+y, (ord(c) for c in 'hello'), 0))
输出:
0b110100001100101011011000110110001101111
如果我把它放到这个网站(在右侧网站)中,我就会收到回复hello。我想知道它使用什么方法。我知道我可以将二进制字符串拆分成 8 个字节,然后将其与相应的值匹配,bin(ord(character))或者其他方法。真的在寻找更简单的东西。
hello
bin(ord(character))
[ -~]对于Python 2 上范围内的 ASCII 字符:
[ -~]
>>> import binascii >>> bin(int(binascii.hexlify('hello'), 16)) '0b110100001100101011011000110110001101111'
相反:
>>> n = int('0b110100001100101011011000110110001101111', 2) >>> binascii.unhexlify('%x' % n) 'hello'
在 Python 3.2+ 中:
>>> bin(int.from_bytes('hello'.encode(), 'big')) '0b110100001100101011011000110110001101111'
>>> n = int('0b110100001100101011011000110110001101111', 2) >>> n.to_bytes((n.bit_length() + 7) // 8, 'big').decode() 'hello'
def text_to_bits(text, encoding='utf-8', errors='surrogatepass'): bits = bin(int.from_bytes(text.encode(encoding, errors), 'big'))[2:] return bits.zfill(8 * ((len(bits) + 7) // 8)) def text_from_bits(bits, encoding='utf-8', errors='surrogatepass'): n = int(bits, 2) return n.to_bytes((n.bit_length() + 7) // 8, 'big').decode(encoding, errors) or '\0'
import binascii def text_to_bits(text, encoding='utf-8', errors='surrogatepass'): bits = bin(int(binascii.hexlify(text.encode(encoding, errors)), 16))[2:] return bits.zfill(8 * ((len(bits) + 7) // 8)) def text_from_bits(bits, encoding='utf-8', errors='surrogatepass'): n = int(bits, 2) return int2bytes(n).decode(encoding, errors) def int2bytes(i): hex_string = '%x' % i n = len(hex_string) return binascii.unhexlify(hex_string.zfill(n + (n & 1)))
>>> text_to_bits('hello') '0110100001100101011011000110110001101111' >>> text_from_bits('110100001100101011011000110110001101111') == u'hello' True