Question

如何完成重复读取数字的程序，直到用户输入为止 “完成”。输入“完成”后，打印出总数，计数和平均值数字。如果用户输入的数字不是数字，请检测他们的错误使用try和except并打印错误消息并跳到下一个数字。

count = 0
total = 0

while True:
  x = raw_input('Enter number')
  x=int(x)
  total = total + x
  count = count + 1
  average = total / count
  print total, count, average

Answer 1

以下代码应该是您想要的。

count = 0
total = 0

while True:
    x = raw_input('Enter number: ')
    if(x.lower() == "done"):
        break
    else:
        try:
            x=int(x)
            total = total + x
            count = count + 1
            average = total / count
        except:
            print("That is not an integer. Please try again.")

print total, count, average

或在Python 3中

count = 0
total = 0

while True:
    x = input('Enter number: ')
    if(x.lower() == "done"):
        break
    else:
        try:
            x=int(x)
            total = total + x
            count = count + 1
            average = total / count
        except:
            print("That is not an integer. Please try again.")

print(total, count, average)

Python中的字符串，Int区分和循环

1 个答案: