本文介绍了求和.TypeError:“浮动"对象不可迭代的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着跟版网的小编来一起学习吧！
问题描述
今天我尝试制作一个程序，询问用户他/她希望我对系列中的多少项目求和.该系列将用于近似 pi 的值.到目前为止，这是我的代码:
Today I tried to make a program that would ask a user how many items in a series he/she wanted me to sum. This series would be used to approximate the value of pi. Here is my code thus far:
from math import pi
def pi_sum():
n = eval(input("How many terms do you want to sum: "))
for i in range(n):
denominator= 2.0 * i + 1
sign = (-1) ** i
numerator = 4
result = (4 * sign) /denominator
print(result)
print(sum(result))
pi_sum()
但是，此代码会生成错误消息:
However, this code generates the error message:
File "C:/Users/Crisa/PycharmProjects/untitled/piprogram.py", line 14, in pi_sum
print(sum(result))
TypeError: 'float' object is not iterable
如果我的 for 循环生成浮点数，我如何让 python 对我的 for 循环中的值求和?我被卡住了:/
How can I get python to sum the values in my for loop if my for loop is generating floats? I am stuck :/
推荐答案
将每次迭代的结果添加到列表中:
Add your results of each iteration into a list:
myresults = []
for i in range(n):
...
myresults.append(result)
然后在最后，得到所有结果的列表总和:
Then at the end, get the sum of the list with all your results:
print(sum(myresults))
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