擅长:python、mysql、java
<p>在主文件中</p>
<ul>
<li>您必须创建一个参数为1和2的对象,如下所示:<code>my_object_cal = Calculadora(number1,number2)</code></li>
<li>然后,使用<code>if/elif/else</code>调用基于符号(*+-/)的右函数,如下所示:</li>
</ul>
<pre><code> if sign =="+" :
my_object_cal.soma(number1, number2)
elif sign == "-" :
my_object_cal.subtrai(number1, number2)
elif ...
else ...
</code></pre>
<p>你可以参考<a href="https://www.w3schools.com/python/python_conditions.asp" rel="nofollow noreferrer">this tutorial on if,elif,else</a></p>
<p>你还必须学习<a href="https://www.w3schools.com/python/python_classes.asp" rel="nofollow noreferrer">how to create and instantiate object in python</a></p>
<p>之后,您可以在<a href="https://realpython.com/instance-class-and-static-methods-demystified/" rel="nofollow noreferrer">using static methods</a>中前进</p>
<p>祝你好运</p>