擅长:python、mysql、java
<p>打开文件并读入值时,它们的类型(或类)为str,因此需要将它们转换为int或float来进行数学检查。在</p>
<pre><code>>>> prompt = 'What...is the airspeed velocity of an unladen swallow?\n'
>>> speed = input(prompt)
What...is the airspeed velocity of an unladen swallow?
17
>>> type(speed)
<class str>
>>> speed = int(speed)
17
>>> int(speed) + 5
22
</code></pre>