擅长:python、mysql、java
<p>无效缩进,替换为:</p>
<pre><code> if not a is None and not b is None:
print(hello(float(a),float(b)))
else:
print("A or B must be filled")
</code></pre>
<p>有了这个:</p>
<pre><code>if not a is None and not b is None:
print(hello(float(a),float(b)))
else:
print("A or B must be filled")
</code></pre>