1.5.75 0 10000001 0111 0000 0000 0000 0000 000
161.875 0 10000110 0100 0011 1100 0000 0000 000
-0.0234375 1 01111001 1000 0000 0000 0000 0000 000
经检验（具体请看网址http://www.weitz.de/ieee/）该结果无误
2.利用python实现类浮点数的转换功能
代码大致如下（尚未能成功分辨符号）
s = float(input())
if int(s)!=0:
f = s-int(s)
print(int(s),round(f,9))
f=round(f,9)
def dec2bin(x):
x -= int(x)
a = []
while x:
x *= 2
a.append('1' if x>=1. else '0')
x -= int(x)
return a
print(dec2bin(f))
c = ''.join(dec2bin(f))
print(c)
b = list(str(bin(int(s))))
print(b)
del b[0]
del b[0]
print(b)
d = len(b)
d=d-1+127
e = list(str(bin(int(d))))
print(e)
del e[0]
del e[0]
print(e)
del b[0]
b = ''.join(b)
print(b)
e.extend(b)
e.extend(c)
g = ''.join(e)
print(g)
j = int(len(e))
print(j)
while (j<31):
e.append('0')
j = len(e)
e.insert(0,'0')
g = ''.join(e)
print(g)
if int(s)==0:
f = s-int(s)
print(int(s),round(f,9))
f=round(f,9)
def dec2bin(x):
x -= int(x)
a = []
while x:
x *= 2
a.append('1' if x>=1. else '0')
x -= int(x)
return a
print(dec2bin(f))
c = dec2bin(f)
k = c.index('1')
k = k*(-1)+127
e = list(str(bin(int(k))))
del e[0]
del e[0]
print(e)
e.extend(c)
j=len(e)
while (j<31):
e.append('0')
j = len(e)
e.insert(0,'0')
g = ''.join(e)
print(g)