问不使用sys模块计算最小输入数

EN

import sys

# declare a variable largest which has smallest integer value
# -sys.maxsize gives the smallest integer value,you can also use any smallest value 
largest = -sys.maxsize
# declare a variable smallest, that is assigned with maximum integer value
smallest = sys.maxsize
# declare variables total to store the sum of all numbers
total = 0
# option variable is to store the user option  Y or N
option = 'y'
# declare variables to count odd, even and totalCount
evenCount = 0
oddCount = 0
totalCount = 0
print("This program will calculate statistics for your integer data.")

# run the loop when the user enters y or Y
while option == 'y' or option == 'Y':
    # take input of number
    number = int(input("Please type a number: "))
    # add the number to total
    total = total + number
    # increase totalCount
    totalCount = totalCount + 1
    # calculate smallest
    if number < smallest:
        smallest = number
        # calculate largest
    if number > largest:
        largest = number
    # calculate count of even and odd numbers
    if number % 2 == 0:
        evenCount = evenCount + 1
    else:
        oddCount = oddCount + 1
    option = input("Do you have another number to enter? ")

# calculate average
average = total / totalCount
# print the output
print("\nThe total of your numbers is:", total)
print("The smallest of your numbers is:", smallest)
print("The largest nof yout numbers is:", largest)
print("The number of even numbers is:", evenCount)
print("The number of odd numbers is:", oddCount)
print("The average of your numbers is:", average)