擅长:python、mysql、java
<p>您可以编写一个函数来尝试除法并返回默认值</p>
<pre><code>def mydiv(a, b):
try:
return a/float(b)
except ZeroDivisionError:
return 0
p = mydiv(pacific, float(a))
m = mydiv(mountain, float(b))
c = mydiv(central, float(c))
e = mydiv(eastern, float(d))
</code></pre>