如何让用户从列表中提取数据并将其清晰地显示在输出中？

Question

我有一个 table 包含给定的一年月平均温度，我需要开发一些 python 代码，允许用户 select 一个月并拥有 selected 月份和相应的月平均温度打印在屏幕上，输出如下：

The average temperature in New York in March is 10.0 degrees Celsius

（注意：我省略了 table，但列表的输入顺序是正确的）这是我目前所拥有的：

#variable used to set the selected month (should be index value)
month_index = input("Choose the index value of the month you would like to look at:")

#Lists containing data
month = ["January", "Febuary", "March", "April", "May", "June", "July", "August",
         "September", "October", "November", "December"]
avg_temp = [4.6, 6.1, 10.0, 17.0, 23.0, 27.0, 30.0, 29.0, 25.2, 19.0, 12.7, 7.2]

我试过这个有效的语句，但对用户输入无效：

print_statement = (f"The average temperature in New York in {month[2]} "
                   f"is {avg_temp[2]} degrees Celsius")

我还认为可能需要压缩列表来连接两列中的值，如下所示：

month_index = sorted(zip(month, avg_temp)

我搞砸了代码，无法准确记住我写的内容，但基本上结果输出是：

The average temperature in New York in (December, 7.2)

请注意，我不得不在末尾省略 "is x degrees Celsius"，这不是一个干净的句子。

Answer 1

您需要先将输入转换为整数，然后在打印语句中使用它，如下所示：

#variable used to set the selected month (should be index value)
month_index = int(input("Choose the index value of the month you would like to look at:"))

#Lists containing data
month = ["January", "Febuary", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]
avg_temp = [4.6, 6.1, 10.0, 17.0, 23.0, 27.0, 30.0, 29.0, 25.2, 19.0, 12.7, 7.2]

print(f"The average temperature in New York in {month[month_index]} is {avg_temp[month_index]} degrees Celsius")

或者，您可以使用字典，并询问月份名称而不是索引：

#variable used to set the selected month (should be index value)
month_input = input("Choose the month you would like to look at: ")

# List containing data
month = ["January", "Febuary", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]
avg_temp = [4.6, 6.1, 10.0, 17.0, 23.0, 27.0, 30.0, 29.0, 25.2, 19.0, 12.7, 7.2]

# Converting to a dict
temp_per_month = {month[i]:avg_temp[i] for i in range(len(month))}

print(f"The average temperature in New York in {month_input} is {temp_per_month[month_input]} degrees Celsius")

最后，如果你愿意，你可以压缩，但这里不要排序，因为这将按字母顺序对条目进行排序（所以八月在第一，九月在最后，而不是一月在第一，十二月在最后）。

#variable used to set the selected month (should be index value)
month_index = int(input("Choose the index value of the month you would like to look at:"))

#Lists containing data
month = ["January", "Febuary", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]
avg_temp = [4.6, 6.1, 10.0, 17.0, 23.0, 27.0, 30.0, 29.0, 25.2, 19.0, 12.7, 7.2]

month_temps = zip(month, avg_temp)

print(f"The average temperature in New York in {month_temps[month_index][0]} is {month_temps[month_index][1]} degrees Celsius")

Answer 2

您提到“我试过这个有效的语句，但没有用户输入”。在将 user-input 用作列表索引之前，您是否将其转换为整数？

基本上，试试这个：

month_index = int(input("Choose the index value of the month you would like to look at:"))

如何让用户从列表中提取数据并将其清晰地显示在输出中？

How to have a user pull data from lists and display it cleanly in output?

python

input

list