擅长:python、mysql、java
<p>我自己也是一个初学者,但我不认为你可以给一个变量赋值,然后在同一行使用全局关键字。因此,首先必须定义全局变量:</p>
<pre><code>global binaryOrDecimal
</code></pre>
<p>然后为其指定一个值:</p>
<pre><code>binaryOrDecimal = input('''Which way are you trying to convert?
A: Binary to Decimal
B: Decimal to Binary
''')
</code></pre>
<p>因此,总体而言,您的功能应该是:</p>
<pre><code>def conversion():
global binaryOrDecimal
binaryOrDecimal = input('''Which way are you trying to convert?
A: Binary to Decimal
B: Decimal to Binary
''')
</code></pre>