Python 循环的新手问题

在Python3中尝试执行以下任务时，我的脑子已经死了。请帮忙

编写一个循环，计算以下系列数字的总和：1/30+2/29+3/27+⋯+ 29/2+30/1

for numerator in range(1, 31, 1):
    denominator = (31 - numerator)
    quotient = numerator / denominator
    print(quotient)

我可以算出每一个的商，但我不知道如何有效地求和。

效率：

In [794]: sum(i*1.0/(31-i) for i in range(1, 31)) # i*1.0 is for backward compatibility with python2
Out[794]: 93.84460105853213

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如果必须在循环中显式执行此操作，请参阅@Bill的提示

你就快到了，所以我给你一些提示

# initialize a total variable to 0 before the loop

for numerator in range(1, 31, 1):
    denominator = (31 - numerator)
    quotient = numerator / denominator
    print(quotient)
    # update the total inside the loop (add the quotient to the total)

# print the total when the loop is complete

如果你想看到一个更具Pythonic-idomatic的解决方案，请参阅张晓晨的答案

total = 0
for numerator in range(1, 31, 1):
    denominator = (31 - numerator)
    quotient = numerator / denominator
    print(quotient)
    total += quotient
print/return(total)

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请注意，您将进行一些取整，可能会得到一个您不期望的答案。

这样做是为了跟踪求和

total = 0

for numerator in range(1, 31, 1):
    denominator = (31 - numerator)
    quotient = numerator / denominator
    total = total + quotient

print(total)

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这不是代码生成器：这是我第一次接触编程。现在回想起来，这个问题令人尴尬-X