擅长:python、mysql、java
<p>尝试:</p>
<pre class="lang-py prettyprint-override"><code>intro = input("What calculation do you want to perform:")
number1add = input("What is your First number:")
number2add = input("What is you Second number:")
sum1 = int(number1add) + int(number2add)
print(intro)
if (intro == 'sum'):
print(number1add, number2add)
print(sum1)
</code></pre>
<p>您还将整数名命名为<code>sum</code>,这是python中的内置函数</p>