Python-从列表中总计项目，传递要写入的列表，读取最初输入的文件和显示数字

Question

我过去几天一直在研究这段代码。我遇到两件事情有困难（如果我没有正确地将字符串从字符串转换为整数，则可能为3件）：

1）总结数组中的数字总和。总计显示以此格式输入的最后一个数字（[9]，9）。

2）从readData模块中，显示最初输入的数字。它返回项目数，即5

示例输出

请输入1到10：1之间的数字

请输入1到10：3之间的数字

请输入1到10：5之间的数字

请输入1到10：7之间的数字

请输入1到10：9之间的数字

您输入的总数是：（[9]，9）

数据已写入文件。

您输入的数字是： 5

已从文件中读取数据。         ITEMS = 5

    def main():

        #assign variable to call a function
        numArray = inputNumbers()

        #assign variable to call a function and
        #pass the argument 'numArray'
        total = addNums(numArray)

        #display the total amount of the numbers in array combined
        print('The total of the numbers in the list is', total)

        #call function to write data to a file passing argument numArray
        writeArray(numArray)

        #call function to read data from a file
        readArray()

    def inputNumbers():

        #set empty array to append items to later
        numArray = [] 

        #set up try and except to ensure user puts in a number
        #and that the number is between 1 and 10
        try:

            #set up a for loop for the user to be able to enter up to 5 items
            for count in range(1, ITEMS + 1):
                print(count,')Please enter a number between 1 and 10: ', sep= '', end='')
                numbers = int(input())

                #set up while loop so that the user is able to reenter a number if they
                #enter a number outside of 1-10
                while numbers < 1 or numbers > 10:
                    print('An error occurred. Please make sure you enter' \
                          'only a number.')
                    print()
                    print(count,')Please enter a number between 1 and 10: ', sep= '', end='')

                    #convert numbers to an integer
                    numbers = int(input())

            #use append method to add the numbers entered to empty array  
                numArray.append(numbers)

            #return numArray back to the main function
            return numArray

        #declare except method in the event user enters anything that is not a numer
        except:
            print('An error occurred. Please ensure that you are entering the information properly.')

    #call function to get the total sum of the numbers in the array
    def addNums(numArray):

        total = 0
        #calculate the total sum of the numbers 

        for i in numArray:
            total += i

        #return total back to the main function
        return total

    #declare function to write the data from the array to a file
    def writeArray(numArray):

        #open the file
        num_file = open('Exam2.dat','w')

        #declare for loop to convert all the integers back to a string
        for index in numArray:
            num_file.write(str(index) + '\n')

        #close the file
        num_file.close()

        print('The data has been written to the file.')

    def readArray():

        #open read file
        num_file = open('Exam2.dat','r')

        numbers =  num_file.readline()
        numbers = numbers.rstrip('\n')
        #create a while loop to execute as long as the index is 1 less than the max amount of items
        #and also will stop the program from continually running once it hits EOF
        while numbers != ' ' :

            #display the numbers that were originally entered
            print('Here are the numbers that you entered:', numbers)

            #read each line of the file and strip the separate line after
            numbers = num_file.readline()
            numbers = numbers.rstrip('\n')


        #close file
        infile.close()