Python实现的十进制小数与二进制小数相互转换功能
​

def dec2bin(x):
  x -= int(x)
  bins = []
  while x:
    x *= 2
    bins.append(1 if x>=1. else 0)
    x -= int(x)
  return bins
print(dec2bin(.8125))
      # [1, 1, 0, 1]