擅长:python、mysql、java
<pre><code> totalBottles = 0
todayBottles = 0
counter = 1
while counter <= 7:
todayBottles = int(input('Enter the number of bottles for today: '))
totalBottles = totalBottles + todayBottles
counter = counter + 1
return totalBot
</code></pre>
<p>因为input()函数以字符串形式返回输入,所以todayBalts是一个字符串。totalbalts变量是一个整数。不能将字符串添加到整数中,因此会出现错误。您应该通过这样做将值从string更改为integer(注意while循环下的int函数)</p>