我的代碼遇到的問題是打開文件後,它只會計算隨機生成的最後一個數字,並不會將它們全部添加。例如,如果您使用的數量爲2,它將只顯示最後生成的數字,而不是全部數字。這裏是提示:不計算以前文件中的所有數字? Python
編寫一個程序,將一系列隨機數寫入文件。每個隨機數應該在1到500的範圍內。應用程序應該讓用戶指定文件將保存多少個數字。下一個程序應該讀取文件中的隨機數,顯示數字,然後顯示從文件中讀取的數字和數字的總數。
# import the random module
import random
# open the file to write to
random_numbers = open('ran_numbers.txt', 'w')
# ask for numbers written to the file
numberOfNumbers = int(input("How many numbers do you want written to the file?: "))
print("Your random numbers are: ")
# number selection
for count in range (numberOfNumbers):
number = random.randint(1,500)
print(number)
# writing numbers to file with new line after
random_numbers.write(str(number)+ '\n')
# close
random_numbers.close()
random_numbers = open('ran_numbers.txt', 'r')
number = 0
total = 0
print("List of numbers:")
for line in random_numbers.readlines():
print(line)
total = total+int(line)
number +=1
print("The Sum of the numbers = "+str(total))
print("The total amount of numbers read are "+str(number))
在循環內移動'raneom_numbers.write(str(number)+'\ n''線,對於Python來說,這意味着縮進它,你可能花費更少的時間來執行並發現錯誤。在這裏張貼。 – mpez0 2014-12-08 00:11:16