擅长:python、mysql、java
<p>如果此条件不通过:</p>
<p><code>if moneyInCents >= 100:</code></p>
<p>则<code>moneyInDollars</code>将未定义。通过在if语句之前声明默认值,可以轻松解决此问题:</p>
<pre><code>def convertToDollars(moneyInCents):
moneyInDollars = 0
if moneyInCents >= 100:
moneyInDollars = moneyInCents/100
return moneyInDollars
</code></pre>