float型/int型数据和底层2进制表示互转
版权声明 本站原创文章 由 萌叔 发表 转载请注明 萌叔 | http://vearne.cc 引言: 因为需要打印float型/int型二进制表示 这里封装了几个函数，方便日后使用。 struct_utils.py import struct def type2bin(num, fmt): ll = [bin(ord(c)) for c in struct.pack(fmt, num)] res = [] for item in ll: res.append(item.replace('0b', '').rjust(8, '0')) return ''.join(res) def bin2type(bits, fmt): return struct.unpack(fmt, struct.pack(fmt, int(bits, 2)))[0] def float2bin(num): return type2bin(num, '>f') def bin2float(bits): return bin2type(bits, '>f') def int2bin(num): return type2bin(num, '>i') def bin2int(bits): return bin2type(bits, '>i') def long2bin(num): return type2bin(num, '>q') def bin2long(bits): return bin2type(bits, '>q') if __name__ == '__main__': res = float2bin(5.5) print res res = bin2float(res) print res print '-----------------' res = int2bin(345) print res res = bin2int(res) print res print '-----------------' res = long2bin(345) print res res = bin2long(res) print res 请我喝瓶饮料