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<p>在运行代码时会出现这样的错误</p>
<blockquote>
<pre><code>unsupported operand type(s) for *: 'float' and 'NoneType'
</code></pre>
</blockquote>
<p>如果我删除这部分</p>
<pre class="lang-py prettyprint-override"><code>Total = Total* exp
Total = 1-Total
possition = possition + 1
</code></pre>
<p>有这样的错误吗</p>
<blockquote>
<pre><code>IndexError: index 4 is out of bounds for axis 1 with size 4
</code></pre>
</blockquote>
<p>代码:</p>
<pre class="lang-py prettyprint-override"><code>import random
def getsys():
row = ''
for i in range(0 , 8):
randintt = str(random.randint(0 , 4))
row += randintt
return row
def getx():
x = []
for i in range(0,14):
mysys = getsys()
x.append(mysys)
return x
y = getx()
print (y)
</code></pre>
<pre class="lang-py prettyprint-override"><code>import initialsys
import numpy as np
R = np.array([[0.90 , 0.93,0.91 , 0.95],
[0.95 , 0.94, 0.93, 0],
[0.85 , 0.90 , 0.87 , 0.92],
[0.83 , 0.87 , 0.85 , 0 ],
[0.94 , 0.93 , 0.95 , 0],
[0.99 , 0.98 , 0.97 , 0.96],
[0.91 , 0.92 , 0.94 , 0],
[0.81 , 0.90 , 0.91 , 0],
[0.97 , 0.99 , 0.96 , 0.91],
[0.83 , 0.85 , 0.90 , 0],
[0.94 , 0.95 , 0.96 , 0],
[0.79 , 0.82 , 0.85 , 0.90],
[0.98 , 0.99 , 0.97 , 0],
[0.85 , 0.92 , 0.95 , 0.99]
])
def expression(r ,possition , char ):
exp = 1-r[possition , int(char)]
x = initialsys.getx()
possition = 0
Total = 1
Total = float(Total)
char = ""
for row in x :
for char in row :
if char!= 0 :
exp = expression(R , possition , char)
Total = Total* exp
Total = 1-Total
possition = possition + 1
</code></pre>