【发布时间】：2023-03-09 09:46:01
【问题描述】：
我正在尝试以英寸为单位汇总总降雨量以显示总数，但是当我运行代码时，我得到一个 TypeError 说“'float' object is not iterable”。知道我做错了什么吗？
months = 12
def main():
rain = get_rain()
total = get_total(rain)
avg = total / len(rain)
low = min(rain)
high = max(rain)
print('The total rainfall in inches for the year is: ', format(total, ',.2f'))
print()
print('The average monthly rainfall this year was: ', format(avg, ',.2f'))
print()
print('The lowest rainfall in inches this year was: ', format(low, ',.2f'))
print()
print('The highest rainfall in inches this year was: ', format(high, ',.2f'))
print()
def get_rain():
rain_in = []
print('Enter the amount of rainfall in inches for each month of the year.')
print('------------------------------------------------------')
for index in range(months):
print('Enter the total rainfall in inches for month #', index + 1, ': ', sep='', end='')
rain_inches = float(input())
rain_in.append(rain_inches)
return rain_inches
def get_total(rain_in_list):
total = 0.0
for num in rain_in_list:
total += num
return total
main()
追溯：
Traceback (most recent call last):
File "C:/Users/Robert Rodriguez/Desktop/fall 2013-2014/Intro-python/python6/exercise8-3.py", line 50, in <module>
main()
File "C:/Users/Robert Rodriguez/Desktop/fall 2013-2014/Intro-python/python6/exercise8-3.py", line 9, in main
total = get_total(rain)
File "C:/Users/Robert Rodriguez/Desktop/fall 2013-2014/Intro-python/python6/exercise8-3.py", line 45, in get_total
for num in rain_in_list:
TypeError: 'float' object is not iterable
即使是在正确的方向上稍微推动一下也会有所帮助。我觉得我正处于解决这个问题的边缘。
【问题讨论】：
-
请发布完整的回溯
-
input()接受提示字符串，所以最好使用input("Enter the amount of rainfall...")。 -
与您的异常无关：您可以使用
str.format方法而不是内置的format函数来简化一些打印调用。例如，print('The total rainfall in inches for the year is: {.2f}'.format(total))。对于您的输入提示，您可以直接在input调用中执行此格式化（它将在请求输入的行的开头打印）：input('Enter the total rainfall in inches for month #{}: '.format(index + 1)) -
请注意：您的
get_toal函数已经存在于 Python 中。它被称为sum。 -
感谢您的提示！ @blckknght- 这是一些有用的建议，我会尝试一下，看看我能学到什么 :) ryanthompson- 有道理，我将如何实现它？