Python列表未正确选择最小值和最大值

Question

我对编程非常陌生，主要是作为一种业余爱好来减轻工作压力，我刚刚开始尝试python，我正试图找到X个数的范围。你知道吗

该程序可以工作，但不是返回最小值和最大值，而是使用列表的最后2个值。你知道吗

正如我所说，我做这件事是一种爱好，没有太多的经验，但我毫不怀疑这是一件简单的事情，但我很难理解为什么它没有采取它应该采取的价值观。你知道吗

numSales = int(input("How many numbers are you entering? "))
# creates a variable for number of numbers, allowing the list to be of length determined by the user

noNumbers = []
# creates list called noNumbers

maxListLength = numSales
# gives the maximum length of the list called dailySales
while len(noNumbers) < maxListLength:
    item = input("Enter a number to add to the list: ")
    noNumbers.append(item)

# Asks for an input as long as the number of variables in dailySales is less than the value of maxListLength
print(noNumbers)

lowest = int(min(noNumbers))
# returns the lowest value of dailySales
print(lowest)

highest = int(max(noNumbers))
# returns the largest value of dailySales
print(highest)

numRange = int(highest - lowest)
# need to subtract highest from lowest to print the sales range

print(numRange)

提前谢谢你的帮助

Answer 1

您需要在列表中插入int而不是字符串，只需修改：

item = input("Enter a number to add to the list: ")
noNumbers.append(item)

签署人：

item = int(input("Enter a number to add to the list: "))
noNumbers.append(item)

Answer 2

应该能用的，我在一台电脑上测试过复制它做得很好。您可能希望将item设为int，这样就不需要后续的int()调用：

https://repl.it/repls/ChubbyAlienatedModulus

numSales = int(input("How many numbers are you entering? "))
# creates a variable for number of numbers, allowing the list to be of length determined by the user

noNumbers = []
# creates list called noNumbers

maxListLength = numSales
# gives the maximum length of the list called dailySales
while len(noNumbers) < maxListLength:
    item = int(input("Enter a number to add to the list: "))
    noNumbers.append(item)

# Asks for an input as long as the number of variables in dailySales is less than the value of maxListLength
print(noNumbers)

lowest = min(noNumbers)
# returns the lowest value of dailySales
print(lowest)

highest = max(noNumbers)
# returns the largest value of dailySales
print(highest)

numRange = highest - lowest
# need to subtract highest from lowest to print the sales range

print(numRange)