Python 最大值和最小值

Question

我是 Python 的新手，让我对我的问题感到愤怒的是我觉得它真的很简单。我一直在第 8 行收到错误。我只想让这个程序获取用户输入的数字，然后打印最大和最小，如果它们输入负数 1，我希望它取消循环。

'int' object is not iterable 是错误。

print "Welcome to The Number Input Program."

number = int(raw_input("Please enter a number: "))

while (number != int(-1)):
    number = int(raw_input("Please enter a number: "))

high = max(number)
low = min(number)

print "The highest number entered was ", high, ".\n"
print "The lowest number entered was ", low, ".\n"

raw_input("\n\nPress the enter key to exit.")

Answer 1

问题是 number 是一个 int。 max 和 min 都需要列表(或其他可迭代的东西) - 因此，您必须将 number 添加到列表中，如下所示:

number = int(raw_input("Please enter a number: "))
num_list = []

while (number != int(-1)):
    num_list.append(number)
    number = int(raw_input("Please enter a number: "))

high = max(num_list)
low = min(num_list)

就像阅读 jimbob 博士的回答后的注释一样 - 我的回答假设您不想在找到 high 和 low< 时考虑 -1/.