Question

python 作业，求助!

Write a program that repeatedly prompts a user for integer numbers until the user enters 'done'. Once 'done' is entered, print out the largest and smallest of the numbers. If the user enters anything other than a valid number catch it with a try/except and put out an appropriate message and ignore the number. Enter the numbers 4,5,6,7 and Match the desired output as shown below:

Invalid input
Maximum is 7
Minimum is 4

please build your program based on the sample code:

largest = None
smallest = None
while True:
num = raw_input("Enter a number: ")
if num == "done" : break
print num

print "Maximum", largest
用while 循环不断要求用户输入数字，直到用户输入done。然后打印出其中最大和最小的数字。 要求用try except检测用户输入的内容，如果输入的不是数字，则打印出invalid input。
用以下数字验证你的程序：4，5，6，7以及任意一个非数字字符
要求输出：
Invalid input
Maximum is 7
Minimum is 4

部分代码已经给出：
largest = None
smallest = None
while True:
num = raw_input("Enter a number: ")
if num == "done" : break
print num

print "Maximum", largest

Answer 1

记得给采纳哦，不然我都回答得没劲了。

#!/usr/bin/env python

largest  = None
smallest = None
LIST     = []

while True:
  num = raw_input("Enter a number: ")
  if num == "done" : break
  print num
  try:
    LIST.append(int(num))
  except:
    print "Invalid input"

largest  = max(LIST)
smallest = min(LIST)
print "Maximum", largest
print "Minimum", smallest